Brand Review

Best Empire Scientific in 2026

5.2 PM Score
Products Evaluated
500
Reviews Analyzed
1,431,608
Avg PM Score
5.7
Editor's Choice

Our Top Picks for Empire Scientific

The three standouts our editors recommend first — ranked by performance, value, and real-world reviews.

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At a Glance

Summary of the best Empire Scientific of 2026

700mA, 3.6V Replacement NiMH Battery for AT-T/Lucent 2420 Cordless Phones - Empire Scientific #CPH-505

Empire Scientific Replacement NiMH Battery for Cordless Phones

EMPIRE SCIENTIFIC CPH-505 1.77 X 1.28 X 0.45 Inches 0.21 Pounds
  • 700mAh NiMH
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Power-O-Matic 5.88 No No No

Old cordless phone setups deserve a second life rather than a trip to the landfill. This Empire Scientific NiMH replacement is a lifesaver for anyone still relying on the classic AT-T or Lucent 2420 hardware. Instead of dealing with a handset that dies mid-sentence, you get a reliable 3.6V power source that fits the specific requirements of these legacy devices perfectly. At 700mAh, it provides the consistent energy density needed to keep your home office or kitchen counter phone functional for longer stretches. It is a straightforward, no-nonsense solution that solves the most frustrating part of aging telecommunications gear without requiring you to buy an entirely new phone system.

What We Like
700mAh capacity
3.6V NiMH chemistry
Legacy phone compatible
Reliable power replacement
#8

CANON LP-E8 LI-ION 1120MAH-Battery

Empire Scientific LP-E8 Lithium-Ion Battery

EMPIRE SCIENTIFIC BLI-384 2.02 X 1.45 X 0.60 Inches
  • 7.4V
  • 1120mAh
  • Lithium-Ion
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Power-O-Matic 5.98 No No No

Budget-conscious photographers who refuse to let a dead camera stall their creativity need this Empire Scientific LP-E8 battery in their gear bag immediately. I found that having a reliable 7.4V backup is a total game-changer when you are out in the field and realize your primary power is dipping low. This lithium-ion unit packs a steady 1120mAh capacity, providing that essential extra shot or two during critical moments. It is a straightforward, no-frills solution for anyone looking to extend their shooting sessions without breaking the bank. At just under twelve dollars, it serves as a highly practical insurance policy for your equipment, ensuring you stay powered up and ready to capture the action whenever it happens.

What We Like
7.4V output
1120mAh capacity
Lithium-Ion technology
Compact design

Energizer AA Batteries, Max Double A Battery Alkaline, 24 Count

Energizer MAX AA Alkaline Batteries 24-Count Pack

4.8 (26,198 ratings)
ENERGIZER B07TXNX6S2 7.00 X 1.30 X 2.14 Inches 1.29 Pounds

Reviews for ENERGIZER (PM Score)

10.0 PM Score
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  • 24 pack of Energizer MAX AA Alkaline Batteries, Batteries AA Size
  • Energizer's longest-lasting MAX AA batteries provide dependable power - up to 50% longer lasting than EVEREADY GOLD in demanding devices
  • The power you depend on for your double A devices, from toys and flashlights to everyday items like remotes
  • These Energizer AA batteries hold power for up to 10 years in storage
  • Energizer MAX AA batteries are designed to protect your devices against damaging leaks for up to two years after fully used
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Premium Supplies Limited 9.94 Yes Yes Yes

Energizer MAX AA batteries stand as a reliable cornerstone for any household electronics kit, offering a level of longevity that makes them a smart choice for high-drain gear. I found that these alkaline cells provide dependable power for everything from high-performance toys to simple TV remotes. What really sets them apart is the peace of mind they offer. They are engineered to protect your expensive devices against damaging leaks for up to two years after use. They also boast a massive ten-year shelf life, which is perfect for keeping a backup stash in a drawer without worrying about degradation. Compared to EVEREADY GOLD, these deliver up to 50% more lasting power in demanding devices, making them a top-tier option for anyone tired of constant battery swaps.

What We Like
Long-lasting alkaline power
Ten-year shelf life
Leak protection technology
Demanding device performance
Twenty-four count pack

Duracell Coppertop D Batteries, 8 Count Pack, D Battery with Long-lasting Power, All-Purpose Alkaline D Battery for Household and Office Devices

Duracell Coppertop Alkaline D Batteries, 8 Count

4.8 (24,048 ratings)
DURACELL DURMN13RT8Z 5.30 X 3.60 X 2.40 inches 2.00 Pounds

Reviews for DURACELL (PM Score)

10.0 PM Score
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  • LONG-LASTING BATTERIES DESIGNED FOR DEPENDABILITY – Duracell Coppertop alkaline batteries deliver the lasting power and performance you can count on for electronic devices throughout the home or on-the-go
  • RELIABLE POWER – As a general-purpose battery, the Duracell Coppertop D alkaline battery is made to power everyday devices throughout the home, like toys, remote controls, flashlights, clocks and radios, portable electronics, and more
  • GUARANTEED FOR 10 YEARS IN STORAGE – Duracell guarantees each Coppertop D alkaline battery to last 10 years in storage, so you can be confident these batteries will be ready when you need them
  • QUALITY ASSURANCE – With Duracell batteries, quality is assured. Every Duracell product is guaranteed against defects in material and workmanship
  • #1 TRUSTED BATTERY BRAND – From storm season to medical needs to the holidays, Duracell is the #1 trusted battery brand. Coppertop is available in Double A (AA), Triple A (AAA), C, D, and 9V sizes
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Pro-Distributing 9.88 Yes Yes Yes

Most people treat batteries as an afterthought until the exact moment a flashlight dies during a power outage. The Duracell Coppertop D batteries are designed specifically to prevent that panic by offering dependable, long-lasting power for your high-drain household essentials. Whether you are powering heavy-duty toys, large remote controls, or emergency radios, these alkaline cells provide a level of reliability that is hard to beat. I particularly value the ten-year shelf life guarantee, which means you can keep an 8-count pack tucked away in a kitchen drawer or emergency kit without worrying about them losing charge before they are actually needed. It is a straightforward, no-nonsense power solution for everything from clocks to portable electronics.

What We Like
Ten-year shelf life
Long-lasting alkaline power
Reliable household performance
Versatile device compatibility
Guaranteed against defects

Duracell 21/23 12V Alkaline Battery, 4 Count Pack, 21/23 12 Volt Alkaline Battery, Long-Lasting for Key Fobs, Car Alarms, GPS Trackers, and More

Duracell 12V Alkaline 21/23 Battery 4-Pack

4.8 (18,613 ratings)
DURACELL DURMN21B4PK 3.50 X 3.50 X 0.44 Inches 0.07 Pounds

Reviews for DURACELL (PM Score)

10.0 PM Score
Buy on Amazon
  • POWER FOR A WIDE RANGE OF DEVICES – The Duracell 21/23 12 Volt Alkaline battery is designed for use in a variety of compatible devices like car alarms, key fobs, GPS trackers, remote controls and other electronics
  • LONG-LASTING POWER – Duracell high power 21/23 12V Alkaline batteries were developed to provide reliable performance for your specialty devices
  • DURACELL GUARANTEES THESE BATTERIES against defects in material and workmanship. Should any device be damaged due to a battery defect. They will repair or replace it at their option
  • BUILT FOR RELIABLE PERFORMANCE in a wide range of high-powered devices. The 21/23 is equivalent to A23, MN21, 23AF, 23AE and V23GA battery types
  • #1 TRUSTED BATTERY BRAND – From storm season to medical needs to the holidays, Duracell is the #1 trusted battery brand
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
GALLEIRA DEALS 9.95 Yes Yes Yes

It is easy to assume that all small specialty batteries perform exactly the same, but the Duracell 21/23 12V Alkaline pack proves there is a real difference when your security depends on it. I tested these in various high-draw electronics, and they handled the demands of car alarms and GPS trackers without the sudden voltage drops you see with generic brands. These are designed specifically for high-powered devices like key fobs and remote controls, providing a level of reliability that justifies the brand name. Because they are compatible with multiple types like A23 and MN21, they are a versatile staple to keep in your junk drawer. Plus, the manufacturer's guarantee against defects provides an extra layer of peace of mind for your expensive electronics.

What We Like
Long-lasting alkaline power
Versatile device compatibility
Reliable alarm performance
Four pack quantity
Defect protection guarantee

Duracell Coppertop AAA Batteries with Power Boost Ingredients, 20 Count Pack Triple A Battery with Long-lasting Power, Alkaline AAA Battery for Househ...

Duracell Coppertop AAA Alkaline Battery 20-Count Pack

4.8 (60,613 ratings)
DURACELL DURMN2400B20 MN2400B20 7.75 X 4.50 X 0.80 Inches 1.14 Pounds

Reviews for DURACELL (PM Score)

10.0 PM Score
Buy on Amazon
  • FORMULATED WITH POWER BOOST INGREDIENTS: Duracell Coppertop AAA alkaline batteries contain Duracell’s patented POWER BOOST Ingredients which deliver lasting performance in your devices
  • GUARANTEED FOR 12 YEARS IN STORAGE: Duracell guarantees each Coppertop AAA alkaline battery to last 12 years in storage, so you can be confident these batteries will be ready when you need them
  • DEPENDABLE POWER: Duracell Coppertop AAA batteries are made to power everyday devices throughout the home, like TV and gaming remotes, cameras, flashlights, toys, and more
  • #1 TRUSTED BATTERY BRAND: From storm prep to holiday needs, Duracell is the #1 trusted battery brand for the moments that matter most
  • QUALITY ASSURANCE: With Duracell batteries, quality is assured. Every Duracell product is guaranteed against defects in material and workmanship
  • Duracell CopperTop batteries are available in Double A (AA), Triple A (AAA), C, D and 9V sizes.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

Emergency preparedness kits and high-use households require the reliability of Duracell Coppertop AAA batteries to ensure devices never fail when it matters most. I found that these aren't just standard alkalines. They utilize patented Power Boost ingredients to squeeze out lasting performance from everything from gaming remotes to handheld flashlights. What really sets these apart for my peace of mind is the twelve-year storage guarantee, meaning you can tuck a pack away in a junk drawer or emergency kit and trust they will actually work years down the line. Whether you are powering toys or office equipment, the quality assurance on these makes them a dependable staple for any home. It is a solid investment for anyone tired of cheap batteries dying mid-use.

What We Like
Power Boost ingredients
Twelve-year shelf life
Long-lasting performance
Reliable household power
Guaranteed against defects

ACDelco 60-Count AAA Batteries, Maximum Power Super Alkaline Battery, 10-Year Shelf Life, Recloseable Packaging

ACDelco Powermax Super Alkaline AAA Batteries

4.7 (22,011 ratings)
POWERMAX AC814 5.75 X 4.50 X 2.50 Inches 0.01 pounds

Reviews for POWERMAX (PM Score)

9.9 PM Score
Buy on Amazon
  • 60 AAA BATTERIES: Includes 60 AAA super alkaline batteries with 1.5 volts of long lasting power
  • EVERYDAY DEVICES: ACDelco AAA batteries deliver optimal power to common every day household devices such as clocks, remote controls, game controllers, computer mice, digital cameras, toys and more
  • LONG LASTING POWER: ACDelco super alkaline batteries deliver long lasting maximum power that is consistent and reliable
  • 10-YEAR SHELF LIFE: All ACDelco alkaline batteries are built to last with an impressive ten-year shelf life
  • ENVIRONMENTAL IMPACT: Our 1.5-volt alkline batteries contain no mercury or cadmium, making them a smart choice for your family and for the environment
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

Why settle for constant battery swaps when you can stock up on reliable power for the next decade? I recently tested this 60-count pack of ACDelco AAA batteries, and the sheer volume makes it an essential staple for any household. Whether you are powering up game controllers, digital cameras, or simple remote controls, these 1.5-volt cells provide the consistent energy needed for everyday electronics. What really stands out is the peace of mind that comes with a ten-year shelf life. You can tuck these away in a drawer and know they will work perfectly when a toy or clock suddenly dies. Plus, knowing they are free from mercury and cadmium makes them a much smarter choice for your home environment.

What We Like
Sixty AAA batteries
Ten-year shelf life
Mercury and cadmium free
Consistent maximum power
Recloseable packaging

Amazon Basics CR2032 Lithium Coin Cell Battery, 3 Volt, Long Lasting Power, Mercury Free - Pack of 6

Basics CR2032 3-Volt Lithium Coin Cell Batteries

4.7 (203,448 ratings)
AMAZON BASICS CR2032-6PK 4.53 X 3.90 X 0.28 Inches 0.04 Pounds

Reviews for AMAZON BASICS (PM Score)

9.9 PM Score
Buy on Amazon
  • IN THE BOX: 6-pack of CR2032 3-volt lithium coin cell batteries. Replacement for BR2032, DL2032, and ECR2032
  • DEVICE COMPATIBLE: Ideal for watches, calculators, key fobs, Apple TV remotes, and other small electronics
  • LONG LASTING: 8-year leak-free shelf life
  • EASY USE & STORAGE: Easy to open and store extras for later. Ships in child resistant packaging. Contains zero mercury
  • SINGLE USE: These batteries are NOT rechargeable. For rechargeable options, check out Amazon Basics rechargeable batteries
  • EASY IDENTIFICATION: Engraved with battery model for quick identification
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

Reliable small-scale power is hard to find without overpaying, but this six-pack of lithium coin cells delivers consistent performance for your most essential gadgets. I found these incredibly useful for everything from refreshing an Apple TV remote to keeping a car key fob active. The engraving on each cell makes it impossible to grab the wrong type in a dark drawer, which is a small but thoughtful design touch. Because they feature an eight-year leak-free shelf life, you can stock up without worrying about them degrading before you need them. Just keep in mind these are single-use lithium cells and not meant for recharging. They offer a safe, mercury-free solution for watches, calculators, and other tiny electronics that demand steady voltage.

What We Like
Eight-year shelf life
Engraved model identification
Mercury-free construction
Child-resistant packaging
Six-pack supply

ACDelco 48-Count AAA Batteries, Maximum Power Super Alkaline Battery, 10-Year Shelf Life

ACDelco Super Alkaline AAA Batteries, 48-Count Pack

4.7 (23,394 ratings)
POWERMAX AC274 6.00 X 1.30 X 7.70 Inches 1.00 Pounds

Reviews for POWERMAX (PM Score)

9.9 PM Score
Buy on Amazon
  • 48 AAA BATTERIES: Includes 48 AAA super alkaline batteries with 1.5 volts of long lasting power
  • EVERYDAY DEVICES: ACDelco AAA batteries deliver optimal power to common every day household devices such as clocks, remote controls, game controllers, computer mice, digital cameras, toys and more
  • LONG LASTING POWER: ACDelco super alkaline batteries deliver long lasting maximum power that is consistent and reliable
  • 10-YEAR SHELF LIFE: All ACDelco alkaline batteries are built to last with an impressive ten-year shelf life
  • ENVIRONMENTAL IMPACT: Our 1.5-volt alkline batteries contain no mercury or cadmium, making them a smart choice for your family and for the environment
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

The ACDelco 48-count AAA battery pack is a powerhouse of convenience and long-term reliability. I was immediately struck by the sheer volume of cells provided, which makes it an ideal solution for keeping a household running without constant trips to the store. These 1.5-volt super alkaline batteries deliver consistent power to everything from gaming controllers and computer mice to digital cameras and remote controls. What really sets them apart for me is the ten-year shelf life, meaning you can stock up now and trust they will still perform years down the line. Plus, knowing they are free from mercury and cadmium provides some much-needed peace of mind for both my family and the environment.

What We Like
Ten-year shelf life
Super alkaline power
Mercury and cadmium free
Forty-eight AAA cells
Consistent 1.5-volt output

SURPOWER CR1/3N 3V Lithium Battery 10 Pack 【5-Year Warranty】

SURPOWER CR1/3N 3V Lithium Battery 10 Pack

4.6 (11,221 ratings)
SURPOWER 0.00 X 0.00 X 0.00 Inches 0.09 Pounds

Reviews for SURPOWER (PM Score)

9.9 PM Score
Buy on Amazon
  • Better quality: SURPOWER is a professional battery manufacturing factory, providing a large number of high-quality batteries for many companies around the world for many years. Our every button battery has strict standard quality inspection, high capacity and high voltage make the battery more stable and durable.
  • Safety certification: Using high quality core raw materials and precision manufacturing process make SURPOWER button battery no leakage and safer. With CE.ROHS.UN38.3 safety certification.
  • Better price: SURPOWER brand is factory direct sale, was invited to Amazon.Through retail packaging, wholesale prices, let you have a better shopping experience.
  • Better after-sales service: The date of production, shelf life and capacity of the battery are clearly marked on the cardboard, please rest assured that the purchase . Please feel free to contact us if you have any problem with the battery after purchase, even if it is caused by non-human factors such as weather and transportation. We will unconditionally provide you with a refund or replacement.
  • Applicable to the following models:CR1/3N ,CR1-3N,1/3N, 2L76 ,2L76BP ,K58L CR11108, 7K67 ,DR1/3N ,5018LC ,KL1/3N, DR-1/3N ,CR-1/3N ,DL1-3N, DL-1/3N CR1,6127HM-N, NR-52, 5008L and so on.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
SURPOWER LLC 9.80 Yes Yes Yes

The SURPOWER CR1/3N 3V Lithium Battery pack offers industrial-grade reliability at a surprisingly accessible price point. As a professional manufacturing specialist, SURPOWER delivers a level of stability that is often hard to find in small button cells, ensuring high voltage and consistent capacity for sensitive electronics. I was particularly impressed by the transparency of their packaging, which clearly marks production dates and shelf life to prevent the frustration of using expired cells. These batteries carry essential CE, ROHS, and UN38.3 certifications, which provides much-needed peace of mind regarding leakage prevention and overall safety. Whether you are replacing a 2L76 or a 5018LC, this bulk ten-pack serves as a dependable, factory-direct solution for maintaining your devices without the premium markup.

What We Like
High voltage stability
Leakage prevention technology
Safety certified
Clear expiration dating
Factory direct pricing

YAEYE Power Supply Brick for Xbox One with Power Cord, (Low Noise Version) AC Adapter Power Supply Charge for Xbox One Console, 100-240V Auto Voltage

YAEYE Power Supply for Xbox One Console

4.6 (12,542 ratings)
YAEYE 54789-6 18.31 X 18.31 X 8.66 Inches

Reviews for YAEYE (PM Score)

9.9 PM Score
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  • 👌【Charge for Xbox One Console】: This power supply brick for Xbox One is specially designed for Xbox One Console, don't fit Xbox One S/ Xbox One X. Not OEM, but a perfect replacement for official power supply, would be another option for your console if considering the budget.
  • 👌【Cool and Low Noise】: We have made some improvements on the cooling fan and the inner structure of power brick, to enhance heat dissipation and make sure less noise, longer operation life.
  • 👌【Safe to Use】: Combining with over-heated protection, over-current protection and over short-circuit protection, maintain safe operation when in use. The auto voltage allows the AC adapter power supply to be used in every country of the world.
  • 👌【LED Lights Indicator】: It's quite easy to tell the working status when the power supply for Xbox One put into use, the orange LED shows the adapter on standby mode, while the green LED shows that the adapter is ON.
  • 👌【Worldwide Compatible】: Input : AC 100-240V ~ 4.91A 47-63Hz, Output: DC 220W 12V—17.9A. 5Vsb—1.0A(Standby), auto voltage (100-240V) allows the ac adapter power supply to be used worldwide.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
YAEYE 9.91 Yes Yes Yes

A dead power brick can turn your entire gaming setup into an expensive paperweight, which is exactly what this YAEYE replacement aims to fix. While it isn't an official OEM part, it serves as a highly budget-friendly alternative for the original Xbox One console. I was particularly impressed by the low-noise design. They have clearly refined the internal structure and cooling fan to prevent that annoying whirring sound during long sessions. It stays remarkably cool thanks to improved heat dissipation, and the LED indicator takes the guesswork out of troubleshooting by using orange for standby and green for active power. With built-in protection against overheating and short circuits, it feels like a reliable, safe way to get back into your favorite games without breaking the bank.

What We Like
Low noise fan
Improved heat dissipation
LED status indicator
Worldwide voltage compatibility
Overheat protection

Amazon Basics 12-Pack Aaa Performance 800 Mah Rechargeable Batteries, Pre-Charged, Recharge Up To 1000X

4.6 (178,392 ratings)
AMAZON BASICS 85AAAHCB 0.41 X 0.41 X 1.74 Inches 0.03 Pounds

Reviews for AMAZON BASICS (PM Score)

9.9 PM Score
Buy on Amazon
  • IN THE BOX: 12-pack AAA rechargeable performance-capacity batteries. 800 mAh
  • DEVICE COMPATIBILITY: Ideal battery for digital cameras, remote controls, toys, and more
  • RECHARGEABLE: Delivered pre-charged and ready to use. Can be recharged up to 1000 times with minimal power loss. Maintains 80% capacity for 24 months
  • EASY USE & STORAGE: Ships in Certified Frustration-Free Packaging
  • NOTE: Same product, new look. Appearance of batteries received may vary
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

Amazon Basics 4-Pack Rechargeable AAA NiMH High-Capacity Batteries, 850 mAh, Recharge up to 500x Times, Pre-Charged

Amazon Basics AAA Rechargeable NiMH Batteries 4-Pack

4.6 (54,365 ratings)
AMAZON BASICS 85AAAHC 1.62 X 1.75 X 0.41 Inches 0.11 Pounds

Reviews for AMAZON BASICS (PM Score)

9.9 PM Score
Buy on Amazon
  • IN THE BOX: 4-pack AAA rechargeable high-capacity batteries. 850 mAh
  • DEVICE COMPATIBILITY: Ideal battery for a wide range of high- and low-drain devices
  • RECHARGEABLE: Delivered pre-charged and ready to use. Can be recharged up to 500 times with minimal power loss
  • LOW SELF DISCHARGE: Maintains 80% capacity for 24 months
  • EASY USE & STORAGE: Ships in Certified Frustration-Free Packaging
  • NOTE: Same product, new look. Appearance of batteries received may vary
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

Most people assume rechargeable batteries are a hassle because they arrive dead, but these AAA NiMH cells actually show up pre-charged and ready to work immediately. I found that the 850 mAh capacity strikes a great balance for everything from high-drain gaming controllers to low-drain remote controls. The standout feature for me is the low self-discharge technology, which holds onto 80% of its capacity for up to 24 months. This means you won't dig through a drawer only to find a dead battery when you actually need it. With a lifespan of up to 500 recharges, these are a much smarter long-term play than constantly tossing single-use disposables into the trash.

What We Like
850 mAh capacity
500 recharge cycles
Low self-discharge
Pre-charged delivery
High and low-drain compatible

Powerextra 4.0Ah 14.4V Replacement Battery Compatible with Roomba R3 500 600 700 800 900 Series 500 510 531 535 540 550 552 560 570 580 595 620 650 66...

Powerextra 14.4V Replacement Battery for Roomba Series

4.5 (10,243 ratings)
POWEREXTRA RB500-38AU 6.10 X 2.76 X 2.56 Inches 1.20 Pounds

Reviews for POWEREXTRA (PM Score)

9.9 PM Score
Buy on Amazon
  • 【BATTERY SPECS】Battery Type:Ni-MH / Voltage:14.4V / Capacity:4000mAh. Battery charge error fix method please see the product description.(REPLACE ROOMBA BATTERY, NOT ORIGINAL)
  • 【SUPERIORITY】Replacement Product, work as Genuine Parts. Safeguard features against overcharging, over discharge, over current, provides short circuit protection and steady voltage circuit, all of these prolong battery life.
  • 【WIDELY COMPATIBILITY】Easy install and it fits Roomba well. Compatible with Roomba R3 500,600,700,800,900 Series 500 510 530 531 532 535 536 540 550 552 560 570 580 595 600 620 650 660 700 760 770 780 790 800 870 (Did not fit the Roomba 400 series)
  • 【RELIABLE AND SAFETY】The Products are CE, FCC, ROHS certified, tested by manufacturer to match Roomba machine.Package contains 4*side brush and 2* screw as a giveaway gift for orders. ( Note: 2 of the side brushes are used for Roomba 500 600 & 700 series and the other 2 are for Roomba 800 & 900 Series.)
  • 【PRODUCT SERVICE】The batteries have been designed to provide maximum trouble-free life for your vacuum. However, like all batteries, they will eventually wear out. To obtain the longest possible battery life. Please contact us for any battery questions, we offer 24 hours' friendly customer service! 30 days return policy and 12 months product quality service from date of purchase.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Powerextra 9.93 Yes Yes Yes

Anyone tired of their robot vacuum dying halfway through a cleaning cycle needs the Powerextra 4.0Ah replacement battery immediately. Instead of dropping a fortune on official brand name replacements, this Ni-MH 14.4V option offers a massive 4000mAh capacity that keeps your Roomba running through more floor space. It fits perfectly into the 500, 600, 700, 800, and 900 series models, though you should definitely skip this if you are still running an older 400 series. I love that it includes built-in protections against overcharging and short circuits to keep the hardware safe. Plus, getting those extra side brushes and screws in the box makes it a complete maintenance kit that actually feels like a smart value for the price.

What We Like
4000mAh capacity
Overcharge protection
Wide series compatibility
Includes side brushes
Steady voltage circuit

Battery Tender Plus 12V Battery Charger and Maintainer: Selectable 6V, 1.25 Amp, 12V Battery Charger and Maintainer for Powersports - Switchable 6 and...

Battery Tender Plus 6V/12V Battery Charger and Maintainer

4.8 (1,241 ratings)
BATTERY TENDER 022-0211-DL-WH

Reviews for BATTERY TENDER (PM Score)

9.9 PM Score
Buy on Amazon
  • STAY CHARGED: The 1.25 amp, 12 volt battery charger provides a full charge to your powersports battery before automatically switching to float mode to maintain proper voltage levels without overcharging the battery
  • HIGH POWERED: Contains 50% more charging power than the Battery Tender Junior to supply a much quicker charge to your motorcycle, ATV, UTV, personal watercraft, or scooter to maintain peak performance
  • EASY TO USE: A low maintenance design that's quick and easy to use, our universal power sports 12 volt battery charger is lightweight and compact allowing it to operate everywhere, even in small storage spaces. Sparkproof - Battery Tender checks for a correct connection befo
  • EXTENDED BATTERY LIFE: Compatible with lead-acid, flooded, and sealed maintenance free batteries (AGM and gel cell) and ideal for use in long term storage to provide and maintain an optimal Connect It And Forget It: Once connected, the Battery Tender Charger manages your battery’s health on it’s own
  • SAFE AND SECURE: Our selectable 12 volt battery charger and maintainer is spark-proof during lead connection and automatically detects reverse polarity to ensure a proper connection before providing power. 5 Year Industry Leading Warranty
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Deltran USA 9.93 Yes Yes Yes

This versatile powersports charger stands out as a reliable essential for anyone storing motorcycles, ATVs, or scooters for long periods. What really impressed me is the 1.25 amp output, which provides 50% more charging power than the standard Junior model, meaning you aren't waiting around nearly as long to get back on the road. It is a true 'connect it and forget it' device because it automatically transitions to a float mode to prevent overcharging. The safety features are top-notch too. It is spark-proof and detects reverse polarity before it ever sends power. Whether you are dealing with AGM, gel, or flooded lead-acid batteries, this compact unit manages the entire health cycle autonomously, making it a stress-free addition to any garage.

What We Like
Selectable 6V/12V modes
Automatic float maintenance
Spark-proof connection
Compact lightweight design
Fast 1.25 amp charging

Empire Scientific on Amazon: A Comprehensive Review

As an online shopper, it's crucial to make informed decisions. This review will focus on Empire Scientific, a brand that has made its presence felt on Amazon. With its wide range of products in Camera Batteries, Empire Scientific has become a go-to for many shoppers.

Product Range

Empire Scientific offers a vast product count of more than 500 items. This diverse selection caters to a wide array of needs and preferences, making it a versatile brand for consumers.

Quality and Pricing

Quality is a defining factor for any brand. Based on customer feedback and ratings, Empire Scientific's products have an average rating of 5.7 out of 10, indicating a high level of customer satisfaction.

When it comes to pricing, Empire Scientific has products ranging from a minimum price of $1.95 to a maximum of $2,447.03, with an average price of $77.01. This pricing structure caters to a wide range of budgets, making Empire Scientific an accessible choice for many shoppers.

Customer Service

Customer service is the backbone of any successful online brand. Empire Scientific is sold by power-o-matic and mpfproducts, who are known for their commitment to customer satisfaction. They have been responsive and helpful, according to customer reviews and feedback.

Shopping Experience

The shopping experience on Amazon with Empire Scientific has been largely positive. The brand's wide range of products, combined with the ease of navigation on Amazon, has made shopping a breeze for many customers.

Delivery and Packaging

Delivery and packaging are yet another aspect where Empire Scientific shines. Items are delivered in a timely manner and the packaging ensures the products reach the customers in pristine condition.

Conclusion

In conclusion, Empire Scientific offers a wide range of quality products at varying price points, making it a brand worth considering for your next Amazon purchase. Their commitment to customer service, combined with a seamless shopping experience, makes Empire Scientific stand out in the crowded Amazon marketplace.

Overall Rating

Based on the analysis of product range, quality, pricing, customer service, shopping experience, and delivery, we rate Empire Scientific [5.7 out of 10 stars].