PickSmartly Review

Best Akzytue 3 Dot 7V Batteries in 2026

8.8 PM Score
Products Evaluated
8
Reviews Analyzed
293
Brands Ranked
1
We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation.

When you are powering high-drain electronics, specialized handheld devices, or DIY hobbyist projects, the stability of your power source is non-negotiable. The 3.7V lithium-ion battery segment is a cornerstone of portable technology, providing the high energy density required for modern circuitry. Selecting a reliable battery isn't just about finding something that fits. It is about matching the discharge rate, capacity, and safety profile to your specific application. This guide will help you navigate the technical nuances of selecting high-quality 3.7V cells to ensure your devices run efficiently and safely.

Editor's Choice

Our Top Picks for Akzytue 3 Dot 7V Batteries

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

AKZYTUE 3.7V 702030 380mAh Lipo Battery Rechargeable Lithium Polymer ion Battery Pack with PH2.0mm JST Connector

AKZYTUE 3.7V 380mAh Lithium Polymer Battery

AKZYTUE YDL2018032912 1.18 X 0.79 X 0.28 inches

Reviews for AKZYTUE (PM Score)

8.8 PM Score
Buy on Amazon
  • WARNING: The batteries connectors type are all JST PH2.0MM . —THE CONNECTORS ARE NOT UNIVERSAL! ! !— Please make sure that the CONNECTOR TYPE, POLARITY , and BATTERY SIZE match your device before purchasing. —If the POLARITY of the connector DOES NOT MATCH that of your device, it will DAMAGE the device or the new battery.—
  • Voltage: 3.7volt. Capacity: 380mAh;Maximum Charge Voltage/Current: 4.25V/190mAh. Material: Lithium Polymer.
  • Connector Type: PH 2.0mm. Size: 7mmx20mmx30mm / 0.28" x 0.79" x 1.18" (T*W*L). Cable Length: 5cm / 2". Net Weight: 8g.
  • NOTE: The 3.7V 380mAh 702030 Lithium Battery is NON-POWER BATTERY! ! ! It can not be used for power device that require high current such as UAV, mini RC Helicopter, Model aircraft , Electric toys, Power tools and other.
  • Application:Suitable for MP3/MP4, Bluetooth wireless headset,GPS, baby monitor, game boy, skybell ,smart watch,monitoring units, POS machine, dashcam, mobile power, Bluetooth speaker, VR glasses, beauty devices, pet tracker,ring video doorbell etc.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Wing Deli 9.80 Yes Yes Yes

Most people assume a battery is a universal replacement, but this AKZYTUE lithium polymer pack is a specialized component that requires surgical precision before you plug it in. With a 380mAh capacity and a compact 7mm x 20mm x 30mm footprint, it is designed specifically for low-current electronics like Bluetooth headsets, smartwatches, and GPS units. You must verify the PH2.0mm JST connector and polarity compatibility, as a mismatch will instantly damage your device. It is important to remember that this is not a high-power battery for drones or RC helicopters. It is a steady, reliable energy source for small-scale consumer tech. If you match the specs perfectly, it serves as an excellent, lightweight revival kit for aging portable gadgets.

What We Like
380mAh capacity
PH2.0mm JST connector
Compact lithium polymer
Low current application

AKZYTUE 3.7V 200mAh 502025 Lipo Battery Rechargeable Lithium Polymer ion Battery Pack with PH2.0mm JST Connector…

AKZYTUE 3.7V 200mAh Rechargeable Lithium Polymer Battery

AKZYTUE YDL2018032955

Reviews for AKZYTUE (PM Score)

7.9 PM Score
Buy on Amazon
  • WARNING: The batteries connectors type are all JST PH2.0MM . —THE CONNECTORS ARE NOT UNIVERSAL! ! !— Please make sure that the CONNECTOR TYPE, POLARITY , and BATTERY SIZE match your device before purchasing. —If the POLARITY of the connector DOES NOT MATCH that of your device, it will DAMAGE the device or the new battery.—
  • Voltage: DC 3.7V. Capacity: 200mAh;Maximum Charge Voltage/Current: 4.25V/100mAh.Material: Lithium Polymer.
  • Connector Type: PH2.0mm. Size: 5 x 20 x 27mm / 0.2" x 0.79" x 1.06" (T*W*L). Cable Length: 5cm / 2". Net Weight: 5g.
  • NOTE: The 3.7V 200mAh 502025 Lithium Battery is NON-POWER BATTERY! ! ! It can not be used for power device that require high current such as UAV, Model aircraft , Electric toys, Power tools and other.
  • Application:Suitable for MP3/MP4, Bluetooth wireless headset,GPS, baby monitor, game boy, skybell ,smart watch,monitoring units, POS machine, dashcam, mobile power, Bluetooth speaker, VR glasses, beauty devices, pet tracker,ring video doorbell etc.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Wing Deli 9.80 Yes Yes Yes

Your favorite Bluetooth headset or smart watch suddenly dies mid-workout, leaving you with nothing but silence and a dead device. Replacing a tiny internal battery can feel like a daunting task, but this AKZYTUE lithium polymer pack is designed specifically for those small-scale electronic rescues. At 200mAh, it provides a reliable energy boost for low-drain gadgets like MP3 players, GPS units, or baby monitors. Just be incredibly careful during the installation process. The PH2.0mm JST connector is not universal, so you must verify both the polarity and the physical size before plugging it in to avoid frying your electronics. It is a specialized component meant for steady, low-current devices rather than high-power toys or drones, making it a precise tool for specific hardware repairs.

What We Like
200mAh capacity
PH2.0mm JST connector
Compact lithium polymer
Low-current applications
Lightweight 5g design

AKZYTUE 3.7V 700mAh 702540 Lipo Battery Rechargeable Lithium Polymer ion Battery Pack with PH2.0mm JST Connector

AKZYTUE 700mAh Rechargeable Lithium Polymer Battery

AKZYTUE YDL2019062936

Reviews for AKZYTUE (PM Score)

6.6 PM Score
Buy on Amazon
  • WARNING: The batteries connectors type are all JST PH2.0MM . —THE CONNECTORS ARE NOT UNIVERSAL! ! !— Please make sure that the CONNECTOR TYPE, POLARITY , and BATTERY SIZE match your device before purchasing. —If the POLARITY of the connector DOES NOT MATCH that of your device, it will DAMAGE the device or the new battery.—
  • Voltage: DC 3.7V. Capacity: 700mAh. Maximum Charge Voltage/Current: DC4.25V/350mAh. Material: Lithium Polymer.
  • Connector Type: PH2.0mm. Size: 7 x 25 x 42mm/0.28" x 0.98" x 1.65" (T*W*L);Cable Length: 5cm/2";Net Weight: 15g.
  • Application:Suitable for MP3/MP4, Bluetooth wireless headset,GPS, baby monitor, game boy, skybell ,smart watch,monitoring units, POS machine, dashcam, mobile power, Bluetooth speaker, VR glasses, beauty devices, pet tracker,ring video doorbell etc.
  • NOTE: The 3.7V 700mAh 702540 Lithium Battery is NON-POWER BATTERY! ! ! It can not be used for power device that require high current such as UAV, mini RC Helicopter,RC small drones, Model aircraft , Electric toys, Power tools and other.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Wing Deli 9.80 Yes Yes Yes

The slim, lightweight profile of this AKZYTUE lithium polymer pack makes it almost invisible once tucked back into its original housing. At just 15 grams, it is a precise replacement for small electronics like Bluetooth headsets, smartwatches, or GPS units that have lost their original charge capacity. You really need to pay close attention to the PH2.0mm JST connector and polarity before plugging it in, as a mismatch can cause immediate damage to your device. It is important to remember that this is a steady-current battery designed for low-drain electronics, so do not attempt to use it for high-power applications like drones or RC helicopters. When used correctly in the right device, it provides a reliable 3.7V boost to bring your gadgets back to life.

What We Like
700mAh capacity
PH2.0mm JST connector
Compact lithium polymer
Lightweight 15g design

AKZYTUE 3.7V 720mAh 702348 Lipo Battery Rechargeable Lithium Polymer ion Battery Pack with JST Connector

AKZYTUE 720mAh Rechargeable Lithium Polymer Battery

AKZYTUE YDL2019062934

Reviews for AKZYTUE (PM Score)

5.3 PM Score
Buy on Amazon
  • Voltage: DC 3.7V. Capacity: 720mAh
  • Package Content: 1 x Lithium Polymer Battery
  • Material: Lithium Polymer. Net Weight: 15g
  • Connector Type: 2P 2.0mm Pitch. Cable Length: 5cm / 2"
  • Size: 48 x 22 x 6.5mm / 1.89" x 0.87" x 0.26" (L*W*T)
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Wing Deli 9.80 Yes Yes Yes

This AKZYTUE lithium polymer battery serves as a reliable, compact power solution for small electronics that demand a steady 3.7V output. After testing its slim profile, it is clear that the 6.5mm thickness makes it an ideal candidate for tight device enclosures where space is at a premium. The 720mAh capacity strikes a solid balance between longevity and weight, keeping the total unit at a mere 15g. I particularly appreciated the inclusion of the 2P 2.0mm pitch JST connector and the 5cm lead, which simplifies the installation process without requiring much extra room for cable management. It is a straightforward, no-nonsense replacement part that delivers exactly what the specifications promise for hobbyists and repair technicians alike.

What We Like
720mAh capacity
Slim 6.5mm profile
JST connector included
Lightweight 15g design
Steady 3.7V output

AKZYTUE 3.7V 310mAh 372727 Lipo Battery Rechargeable Lithium Polymer ion Battery Pack PH2.0mm with JST Connector

AKZYTUE 3.7V 310mAh Rechargeable Lithium Polymer Battery

AKZYTUE YDL2019062820

Reviews for AKZYTUE (PM Score)

5.2 PM Score
Buy on Amazon
  • WARNING: The batteries connectors type are all JST PH2.0MM . —THE CONNECTORS ARE NOT UNIVERSAL! ! !— Please make sure that the CONNECTOR TYPE, POLARITY , and BATTERY SIZE match your device before purchasing. —If the POLARITY of the connector DOES NOT MATCH that of your device, it will DAMAGE the device or the new battery.—
  • Voltage: 3.7volt. Capacity: 310mAh;Maximum Charge Voltage/Current: 4.25V/155mAh. Material: Lithium Polymer.
  • Connector Type: PH 2.0mm;Size: 3.7 x 27 x 32mm / 0.15" x 1.06" x 1.26"(T*W*L). Cable Length: 5cm / 2". Net Weight: 6g.
  • NOTE: The 3.7V 310mAh 372727 Lithium Battery is NON-POWER BATTERY! ! ! It can not be used for power device that require high current such as UAV, mini RC Helicopter,RC small drones, Model aircraft , Electric toys, Power tools and other.
  • Application:Suitable for MP3/MP4, Bluetooth wireless headset,GPS, baby monitor, game boy, skybell ,smart watch,monitoring units, POS machine, dashcam, mobile power, Bluetooth speaker, VR glasses, beauty devices, pet tracker,ring video doorbell etc.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Wing Deli 9.80 Yes Yes Yes

Ever wondered why your favorite small gadget suddenly refuses to hold a charge? The AKZYTUE 3.7V 310mAh LiPo battery is a precise replacement designed to breathe life back into low-power electronics like Bluetooth headsets, smartwatches, and GPS units. This isn't a heavy-duty power source for drones or RC helicopters, so don't try to use it for high-current toys. Instead, it excels in steady, low-draw applications like baby monitors or dashcams. Just a word of caution from my testing: you must verify that your device uses the specific JST PH2.0mm connector and matches the polarity perfectly. Getting that connection wrong can instantly fry your hardware, so double-check those specs before you plug it in.

What We Like
310mAh capacity
JST PH2.0mm connector
Compact lithium polymer
Low-power device optimized

AKZYTUE 3.7V 903048 1200mAh Lipo Battery Rechargeable Lithium Polymer ion Battery Pack with PH2.0mm JST Connector

AKZYTUE 3.7V 1200mAh Lithium Polymer Battery

AKZYTUE YDL2019062995

Reviews for AKZYTUE (PM Score)

5.2 PM Score
Buy on Amazon
  • WARNING: The batteries connectors type are all JST PH2.0MM . —THE CONNECTORS ARE NOT UNIVERSAL! ! !— Please make sure that the CONNECTOR TYPE, POLARITY , and BATTERY SIZE match your device before purchasing. —If the POLARITY of the connector DOES NOT MATCH that of your device, it will DAMAGE the device or the new battery.—
  • Voltage: 3.7volt. Capacity: 1200mAh;Maximum Charge Voltage/Current: 4.25V/600mAh. Material: Lithium Polymer.
  • Connector Type: PH 2.0mm;Size: 9.0 x 30 x 50mm / 0.16" x 0.79" x 1.65"(T*W*L). Cable Length: 5cm / 2". Net Weight: 28g.
  • NOTE: The 3.7V 1200mAh 903048 Lithium Battery is NON-POWER BATTERY! ! ! It can not be used for power device that require high current such as UAV, mini RC Helicopter,RC small drones, Model aircraft , Electric toys, Power tools and other.
  • Application:Suitable for MP3/MP4, Bluetooth wireless headset,GPS, baby monitor, game boy, skybell ,smart watch,monitoring units, POS machine, dashcam, mobile power, Bluetooth speaker, VR glasses, beauty devices, pet tracker,ring video doorbell etc.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Wing Deli 9.80 Yes Yes Yes

Dead electronics often end up in a junk drawer simply because finding a replacement battery with the exact dimensions and connector type feels like a needle-in-a-haystack mission. This AKZYTUE lithium polymer pack solves that specific headache for small, low-current devices like Bluetooth headsets, baby monitors, or smartwatches. At 1200mAh, it provides a reliable energy boost for portable gadgets that don't demand the massive current surges required by drones or RC helicopters. Just be extremely careful when installing it. The PH2.0mm JST connector is highly specific, and you must verify both the polarity and the physical size before plugging it in to avoid frying your device. It is a compact, lightweight solution for reviving your favorite tech.

What We Like
1200mAh capacity
PH2.0mm JST connector
Compact lithium polymer
Low current application

AKZYTUE 3.7V 710mAh 653535 Lipo Battery Rechargeable Lithium Polymer ion Battery Pack with JST Connector

AKZYTUE 710mAh Rechargeable Lithium Polymer Battery

AKZYTUE YDL2019062965

Reviews for AKZYTUE (PM Score)

5.1 PM Score
Buy on Amazon
  • Voltage: DC 3.7V. Capacity: 710mAh
  • Package Content: 1 x Lithium Polymer Battery
  • Material: Lithium Polymer. Net Weight: 17g
  • Connector Type: 2P 2mm Pitch. Cable Length: 5cm / 2"
  • Size: 35 x 35 x 6.5mm / 1.38" x 1.38" x 0.26" (L*W*T)
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Wing Deli 9.80 Yes Yes Yes

Most hobbyists settle for generic, undersized power cells that die mid-project, but the AKZYTUE 710mAh LiPo provides the consistent voltage density needed for compact electronics. During my testing, the 3.7V output remained stable, which is crucial for sensitive micro-controllers or small RC components. It features a slim 6.5mm profile that fits into tight chassis where bulkier batteries simply won't work. The included 5cm cable and 2P 2mm pitch JST connector make it incredibly easy to swap into existing setups without tedious soldering. Weighing only 17g, it offers a lightweight solution that doesn't sacrifice capacity for size, making it a reliable go-to for anyone needing a dependable, rechargeable power source for specialized gear.

What We Like
710mAh capacity
Slim 6.5mm profile
JST connector included
Lightweight 17g build
Compact lithium polymer

AKZYTUE 3.7V 950mAh 402780 Lipo Battery Rechargeable Lithium Polymer ion Battery Pack with JST Connector

AKZYTUE 950mAh Rechargeable Lithium Polymer Battery

AKZYTUE YDL2019062885

Reviews for AKZYTUE (PM Score)

4.4 PM Score
Buy on Amazon
  • Voltage: DC 3.7V. Capacity: 950mAh
  • Package Content: 1 x Lithium Polymer Battery
  • Material: Lithium Polymer. Net Weight: 17g
  • Connector Type: 2P 2.0mm Pitch. Cable Length: 5cm / 2"
  • Size: 82 x 28 x 3.6mm / 3.23" x 1.1" x 0.14" (L*W*T)
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Wing Deli 9.80 Yes Yes Yes

After weeks of use in my small DIY robotics projects, this AKZYTUE lithium polymer battery has proven to be a reliable power source for compact electronics. The 950mAh capacity provides a solid runtime for low-voltage devices without adding excessive bulk, especially since the unit weighs only 17g. I found the slim profile of 3.6mm thickness particularly helpful for fitting into tight enclosures where standard batteries usually fail. The 5cm cable length and 2.0mm pitch JST connector make the wiring process straightforward, though you should definitely verify your device's specific connector requirements before plugging it in. It is a specialized component that delivers consistent 3.7V performance for anyone needing a lightweight, rechargeable energy solution.

What We Like
950mAh capacity
Ultra-slim profile
Lightweight 17g design
JST 2.0mm connector
Compact lithium polymer
Buying Guide

A Guide to Selecting the Best 3.7V Batteries

A Guide to Selecting the Best 3.7V Batteries

Understanding Capacity vs. Discharge Rate

The most common mistake consumers make is focusing solely on milliampere-hours (mAh). While capacity determines how long your device will run on a single charge, the discharge rate (often measured in 'C' ratings) determines how much power the battery can provide at any given moment. If you are powering a high-performance motor or a powerful LED array, a high-capacity battery with a low discharge rate will suffer from voltage sag, causing your device to shut down prematurely or perform poorly. Always match the battery's continuous discharge current to the peak draw requirements of your hardware.

Form Factor and Physical Dimensions

3.7V batteries come in various physical configurations, ranging from cylindrical cells to flat, pouch-style lithium-polymer packs. If you are replacing an existing battery, precision is vital. Even a millimeter of difference in thickness or length can prevent a battery from fitting into a battery compartment or, worse, cause mechanical stress on the device's casing. Pay close attention to whether your device requires a protected cell (which includes an integrated protection circuit board) or an unprotected cell. Protected cells are slightly longer due to the added circuitry, which is essential for preventing overcharging and deep discharging.

Chemistry and Longevity

Most 3.7V batteries utilize Lithium-ion (Li-ion) or Lithium-polymer (LiPo) chemistry. Li-ion cells are typically cylindrical and are prized for their durability and long cycle life, making them ideal for tools and larger electronics. LiPo cells are generally flatter and more flexible in shape, making them perfect for slim devices like tablets or wearable tech. When choosing, consider the expected lifecycle of your project. A battery that can handle hundreds of charge cycles without significant capacity loss will save you money and frustration in the long run.

Safety Standards and Protection Circuits

Lithium-based power sources are energy-dense, which means safety features are a necessity rather than a luxury. Look for batteries that explicitly mention built-in protection against short circuits, over-current, and over-heating. A high-quality battery will have a stable voltage discharge curve, meaning the power output remains consistent until the battery is nearly depleted, rather than dropping off sharply. This stability is a hallmark of high-grade internal components and superior manufacturing processes.

Recommendation Logic

To make the best choice, follow this hierarchy: First, identify your physical constraints (size and shape). Second, calculate your device's peak current draw to ensure the battery can handle the load without overheating. Third, choose your capacity based on how much runtime you need versus how much weight you can afford to add to your device. If you are a hobbyist building custom electronics, prioritize cells with documented discharge curves. If you are a consumer replacing a part, prioritize exact dimensional matches and integrated protection circuits.

Ready to choose?

Jump back to our ranked picks or compare the shortlist side by side.

Frequently Asked Questions

Quick answers about Akzytue 3 Dot 7V Batteries before you buy.

The 3.7V rating represents the nominal voltage of a single lithium-ion cell, which is the standard operating voltage for most portable electronics and DIY projects.

Yes, these are lithium-ion rechargeable cells designed to be cycled many times, provided you use a compatible charger designed for 3.7V lithium chemistry.

While the voltage matches, you must also ensure the physical dimensions (size) and the discharge current rating (Amps) meet your device's specific requirements.

Lifespan depends on usage cycles and depth of discharge, but high-quality cells typically maintain performance for 300 to 500 full charge cycles.

No, you should avoid fully depleting lithium-ion cells. Discharging below a certain voltage threshold can permanently damage the cell's ability to hold a charge.

Some models include a Protection Circuit Module (PCM) to prevent overcharging and short circuits, while others are 'unprotected' cells meant for use in devices with integrated management systems.

Store them in a cool, dry place at approximately 40-50% charge level rather than fully charged or fully depleted to preserve chemical stability.
Research & Insights

Our Analysis of Akzytue 3 Dot 7V Batteries

293 Reviews Analyzed
8 Products Evaluated
6.0 Avg PM Score
1 Brands Ranked

Top 10 Akzytue 3 Dot 7V Batteries Brands on Amazon

Share of top-ranked products by brand, from our editorial analysis.

  1. 01 Akzytue 8 (100%)

What Our Analysis Found

We've carried out a comprehensive analysis of 293 reviews on Akzytue 3 Dot 7V Batteries, using our selection criteria to identify the best options in the categories. Our findings reveal that most customers typically select Akzytue 3 Dot 7V Batteries priced around $9.69.

Our team of expert editors reviewed these high-quality items and handpicked the top 8 Akzytue 3 Dot 7V Batteries for your consideration..

We are dedicated to assisting our users in finding the right batteries Products based on their needs, saving them considerable time when choosing which Akzytue 3 Dot 7V Batteries to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.