Best 4 V Batteries in 2026

【9V Rechargeable Batteries】REACELL 9v rechargeable batteries with 800mAh / 7200mWh high capacity and recharge times over 1200, save a lot of resource and good value for money.

【USB 1.5H Quick Charge】REACELL advanced USB quick charge technology more convenient than 9v batteries charger, fully charge the 9v rechargeable batteries via Micro USB cable(Not included) in 1.5 hours.

【Smart LED Indicator】Easy to check the status by LED indicator when you charge the 9v batteries, smart and safe (Red Light: Charging; Green Light: Fully Charged). ·Note: the standard voltage of all brand’s 9V lithium ion rechargeable battery is 8.2V-8.4V when fully charged.

What You Get - REACELL 1.2V 1200mAh NiMH AA rechargeable solar batteries 24 pack and excellent customer service - 12 months warranty and 7days / 24 hours customer service.

Two Ways to Charge - REACELL AA rechargeable solar batteries can be charged by solar lights or NiMH AA battery charger. You can choose to charge batteries via REACELL battery charger to provide non-stop power when weak solar energy.

10 Years Life and ECO - REACELL AA solar rechargeable batteries that don’t contain Hg,Pb,Cd can power your devices up to 10 years, no need to change your battery frequently. Good value for the money and save the resources.

【What You Get】- 4x 1100mAh AAA batteries + 4x 2800mAh AA batteries. 7days / 24 hours customer service.

【Rechargeable 1200+ Times】- A single NiMH rechargeable batteries combo can replace 1200+ disposable alkaline batteries, reducing the waste of resources and good value for the money.

【10 Years Life and ECO】- NiMH AA AAA rechargeable battery that don’t contain Hg / Cd / Pb can service 10 years for your household devices, and low self discharge - hold 75% initial power after 36 months of non-use.

What You Get - REACELL 1.2V 1100mAh premium high capacity NiMH rechargeable AAA batteries 8 pack with 2 anti-collision cases and excellent customer service - 12 months warranty and 7days / 24 hours customer service.

Rechargeable 1200+ Times - A single NiMH rechargeable AAA batteries can replace 1200+ Alkaline batteries and remain 75% initial capacity after 36 months of non-use. Good value for the money and save the resources.

Solar Charging and Standard Charging - REACELL rechargeable AAA batteries can be charged by solar lights or Any NiMH AAA battery charger. You can choose to charge batteries via REACELL battery charger to provide non-stop power when weak solar energy.

【Solar PRO Technology】REACELL AAA solar batteries will power your solar lights all seasons under all weather conditions. Pre-charged AAA rechargeable batteries for solar lights with advanced technology can extend battery life more than 1200 Tech, saving your money and resources.

【Low Self-Discharge and ECO】REACELL AAA solar NiMH rechargeable battery are made environmental friendly materials that don’t contain Hg / Cd / Pb can service 10 years for your devices, and will hold 80% power after 3 years benefit from its concentration to low self-discharge project.

【Widely Usage】REACELL high performance AAA rechargeable batteries can replace conventional Alkaline NiCd battery in all devices, ideal for solar garden light, solar lamp or solar lights, cameras, game systems, kid toys, remote controls, hand held games, 2-way radios, PDAs, flashlights, alarm-clock, LCD-TVs, toothbrushes, wireless mouse and other devices that need AAA battery.

【What You Get】REACELL 2800mAh 1.2V NiMH rechargeable AA batteries 16 pack with 4 professional storage cases and 12 months warranty and 7days / 24 hours customer service.

【Long Lasting】 Even 36 months of non-use, REACELL rechargeable AA batteries can have a high capacity that maintain 75% with low self discharge technology. In normal use, the battery life of REACELL will reach 10 years.

【High Performance】Replace thousands of disposable batteries, REACELL rechargeable AA batteries can be recharged up to 1200+ times and last at least 20% longer time than ordinary rechargeable batteries in the same size, which protect the environment and save money.

What You Get - 4pcs 5000mAh high capacity high rate rechargeable C batteries with 2 professional storage cases & 12 months warranty and 7days / 24 hours customer service.

Rechargeable 1200+Times - A single NiMH rechargeable C batteries perfectly replace 1200+ standard Alkaline C size batteries and 1200+ NiCd C rechargeable batteries, value for money.

Low self-Discharge - REACELL Premium rechargeable C cell is international professional organization certified and use advanced technology to ensure the battery quality, it can maintain 80% of original charge after being stored for 3 years of non-use.

What You Get - REACELL 8 pack 2800mAh 1.2V NiMH AA rechargeable batteries with 2 professional storage cases and 12 months warranty and 7days / 24 hours customer service.

High Capacity - REACELL 2800mAh high capacity AA rechargeable batteries use premium grade A cell and advanced technology to keep your devices running longer time.

Long Service Life - REACELL AA rechargeable batteries can be recharged over 1200 times without memory effect and maintain 80% of initial capacity after 36 months of non-use. Save your money and good value.

Battery Specification: Capacity: 3000mAh, Voltage: 3.7V, Size: 67*18*18mm, Type: button top battery.

Wide Compatibility: 3000mAh 3.7 Volt rechargeable battery compatible for high power devices, such as headlamp, flashlight, radio, cameras, doorbells, LED lights, solar lights, toys, small fans, RC car, headlights, etc. Strong power for devices than conventional Alkaline NiCd NiMH battery.

Rechargeable 1000+ Times: A single 3.7 Volt rechargeable battery can recharge up to 1000 charging and discharging cycles and no memory effect. Replace 1000+ disposable alkaline batteries, reduce the waste of resources and good value for the money.

What You Get - REACELL 1.2V NiMH AA AAA Combo Pack (2800mAh AA rechargeable batteries 16 pack + 700mAh solar AAA rechargeable batteries 24 pack) and excellent customer service - 12 months warranty and 7days / 24 hours customer service.

Rechargeable 1200+ Times - A single NiMH rechargeable batteries AA AAA combo pack can replace 1200+ Alkaline AA AAA combo pack and remain 75% initial capacity after 36 months of non-use. Good value for the money and save the resources.

Compatible with All NiMH Charger - REACELL rechargeable AA and AAA batteries combo pack can be charged fully by any AAA NiMH charger and use advanced technology for lasting long, you don’t worry about the battery doesn’t hold a charge. (Please fully charge the batteries before first use)

[HIGHER CAPACITY] - High capacity rechargeable AA and AAA batteries than others, provide longer lasting power to your solar lights.

[LONGER LIFESPAN] - With improved low self discharge technology, extend the lifespan to 1200 cycles for longer service life, and makes it maintain 75% of capacity after 3 years of non-use.

[TWO WAYS TO CHARGE] - Two charging ways are available, it can be charged by solar lights or battery charger. If have not enough sunlight, you can choose to charge batteries via REACELL NiMH battery charger to provide non-stop power.