10 Best Rechargeable Battery 4000Mah

1. JESSPOW Rechargeable 3.7V Battery, 4000mAh 40A Flat Top Batteries for Flashlight, Headlamps, etc 2 Pack

Get long-lasting power for your devices with the JESSPOW Rechargeable 3.7V Battery. These 4000mAh batteries offer stable power and are a perfect replacement for your frequently used electronics.

They are leak-proof and work in extreme temperatures. Enjoy reliable and safe use.

2. RGYDFTYGH – 3.7V 4000mAh Rechargeable Battery, Large Capacity Button Battery for LED, Emergency Lighting, Devices, etc., 2pcs

The RGYDFTYGH 3.7V 4000mAh Rechargeable Battery is a powerful and versatile solution for your devices. It works great for LED lights, emergency tools, and portable gadgets. Its large capacity keeps your devices running longer.

This battery is durable, lightweight, and easy to carry. It offers multiple safety features to protect your devices.

It’s eco-friendly and safe for the environment. The anti-corrosion design extends its life, saving you money. Reliable quality ensures it lasts a long time.

3. Liter energybattery 3.7V Lipo Battery 4000mAh Rechargeable Lithium ion Polymer Battery 125054 with JST Connector

Power your projects reliably with this 3.7V Lithium Polymer battery. It delivers a solid 4000mAh typical capacity—enough juice for hours of steady use. Built with smart PCM protection, it guards against overloads, shorts, and overheating.

Compact size, easy connection: 54x50x12mm fits tight spaces, and the JST connector plugs right in. Just double-check polarity—red is positive, black is negative—to keep your device safe. Replace the connector yourself if needed; it’s simple with a quick look at the photos.

Store it half-charged in a dry place. Recharge every three months. Contact us anytime—we’re here to help.

4. Qimoo 606090 3.7V Lipo Battery 4000mAh 606090 Rechargeable Lithium Polymer Battery Pack with JST PH2.0mm Connector for Electronic Device

Meet the Qimoo 606090 Lipo Battery! It’s a powerful 4000mAh rechargeable battery. This 3.7V pack is perfect for your electronic devices.

This battery features a JST PH2.0mm connector, so double-check compatibility before buying. Its dimensions are 6 x 60 x 90mm.

It’s ideal for devices like MP3 players, smartwatches, and Bluetooth speakers. Just remember, it’s not for high-power items like drones.

5. ruixishangmao High Performance High Capacity Rechar Ba 3.7 Ion Ba 4000mah Large Capacity Ba Top Batteries for LED Torch, Head Lamp,Doorbells,2 Pack

Power when you need it most. These 3.7V rechargeable batteries deliver reliable, long-lasting energy for your everyday essentials—no more sudden power-outs.

Built tough for real life. With 4000mAh high capacity, they power LED torches, headlamps, doorbells, and portable gear through adventures, emergencies, or daily use.

Safe, smart, and waste-free. Six-layer protection guards against overcharge, short circuits, and heat—keeping devices secure. Reusable design cuts battery waste, saving money and the planet.

Buy with total peace of mind. Rigorously tested and backed by responsive support, these batteries are your durable, ready-anytime power solution.

6. YHCS Rechargeable Battery NL2140 4000Mah 3.7V / 14.4Wh Internal Safety Flashlight Batteries-1pcs

Meet the YHCS Rechargeable Battery NL2140! This 4000mAh 3.7V battery is built to last and perform.

It boasts a long life and strong power. This battery is safe and eco-friendly. It’s perfect for your everyday needs.

Enjoy hassle-free use with its advanced safety features. It’s designed for durability and reliability.

7. MakerNova 3.7V 124065 4000mAh LiPo Battery, 1S 3C Rechargeable, Micro JST 1.25 Connector, Dual Protection Board, 1 Pack

Meet the MakerNova 4000mAh LiPo Battery. It’s a powerful 3.7V battery for your devices. Get long-lasting power with this rechargeable pack.

This battery has a Micro JST 1.25 connector. It connects easily to your gadgets.

It’s super safe with dual protection. This guards against overcharging and short circuits.

8. AOSHITU 7.4V 2S2P Lithium-Ion Battery Pack 18650 Rechargeable Replacement Battery with XH-2P 2.54 Plug,4000mAh

Power up your devices with the AOSHITU 7.4V 2S2P Lithium-Ion Battery Pack. This rechargeable replacement battery offers a 4000mAh capacity, ensuring your equipment stays running. It’s built for reliable performance in a wide range of applications.

This battery features a versatile XH-2P 2.54 plug. It provides stable power for your gadgets. Enjoy long-lasting energy with this quality pack.

From fishing lights to power tools, this battery is your excellent continuous power source. It’s safe, environmentally friendly, and tested for durability. Get the power you need with AOSHITU.

9. MakerHawk 3.7V 4000mAh LiPo Battery Rechargeable 1S 3C 124065 Lithium Polymer Battery with Protection Board Insulated Rubber Tape, Micro JST 1.25 Plug for Arduino ESP32 Development Board (1 Pack)

The MakerHawk 3.7V 4000mAh LiPo Battery is a high-quality rechargeable battery. It features A-grade lithium cobalt oxide, which offers better energy and stability. This battery is perfect for devices like Arduino and ESP32.

It includes important protection features like over-discharge, over-charge, and short circuit protection. This ensures safety and a longer lifespan for your projects.

10. Tenergy Centura NiMH Rechargeable C Batteries, 4000mAh C Battery, Low Self Discharge C Cell Battery, Pre-Charged C Size Battery, 4 Pack

Stop wasting money on dead batteries. Tenergy Centura NiMH C Batteries are rechargeable, high-capacity, and built to last. Just 4 of these replace hundreds of single-use C batteries.

They hold power for a full year thanks to ultra-low self-discharge—unlike typical rechargeables that fade fast. Charge once, store smart, and still have 85% power when you need it.

Use them right out of the box or fully charge for max runtime. UL certified, backed for 12 months, and rechargeable 2,100 times without losing strength. Reliable power, guaranteed.