Power Li Polymer Battery 302030 3.7V 120mAh Lithium Battery Cell For Bluetooth Keyboards

Product Description

Power Li Polymer Battery 302030 3.7V 120mAh Lithium Battery Cell For Bluetooth Keyboards

For use only with devices marked "3.7V Small Lithium Polymer Battery" (e.g., smart bracelets, micro sensors). Do not use with other battery specifications (e.g., 3.6V steel-cased batteries) to prevent voltage mismatch and device malfunction.

Inspect the battery regularly (every 1-2 months). If you notice bulging of the aluminum-plastic film or leakage from the edges (e.g., sticky white powder), discontinue use and replace the battery immediately to prevent short circuits caused by continued use.

When the device is idle for an extended period (over 1 month), charge the battery to 3.7-3.8V (approximately 50%-60% capacity) before storing it, rather than fully or emptying it. This will reduce cell degradation.

During idle periods, recharge the battery every 3 months to maintain the voltage around 3.7V to prevent prolonged battery drain.

Store at a temperature of 10-25°C (optimally 20°C) and humidity <60%. Avoid humid environments (such as bathrooms) or near heat sources (such as heaters or ovens) to prevent damage to the aluminum-plastic film and electrolyte deterioration.

Store the device in an insulated container (such as a plastic box) away from metal objects (keys, coins) to prevent short circuits (which may cause sudden overheating).

Do not store batteries with flammable or explosive materials (e.g., alcohol, lighters). If storing multiple batteries, wrap each battery individually in an insulating bag to prevent contact between the terminals.

When transporting a single battery, wrap the positive and negative terminals with insulating tape (or use a dedicated insulating cap) and then place the battery in bubble wrap or a foam bag to prevent damage to the aluminum-plastic film due to compression during transport.

When transporting in bulk (e.g., 10 or more batteries), use anti-static packaging and space each battery apart to prevent static electricity from collisions and friction.

During transportation, avoid prolonged exposure to direct sunlight (e.g., in a car trunk in summer) or freezing (outdoor transport in winter). Batteries can be placed in an insulated bag to maintain a temperature between 10-30°C.

Main Application:

Portable Electronic Devices

Suitable for small electronic products such as Bluetooth headsets, electronic scales, and toys, these batteries are compact, lightweight, and offer moderate battery life, meeting the power needs of everyday low-power devices. ‌

Consumer Electronics

Commonly found in devices like beauty devices and early childhood education devices, their high energy density and stability ensure long-term operation while supporting rapid charging and discharging. ‌

Energy Storage and Backup Power

Some models can be used in small energy storage systems or power banks, such as dashcams and Bluetooth speakers. These batteries offer excellent battery life while maintaining portability. ‌

Industrial and Drones

Some ternary lithium batteries, due to their high power output, are also used in devices such as drones that require instantaneous high energy. However, 120mAh capacity batteries are generally suitable for small drones or short-range missions.

Product pictures:

Shenzhen Resky Electronics Co., Ltd is a company specialized in manufacturing, sales and marketing of rechargeable lithium battery and related battery packs.

Our lithium battery cells and packs products are widely used in portable mobile devices such as Bluetooth headsets, MP3 players, PDAs, Digital camcorders, Mining lamps, medical device, GPS, RC Models and electric vehicle such as electric bike, electric scooter, and solar energy storage system.

Vision:

To be an international premier innovative technology corporation, rooted in the Chinese culture, excelling in the global green energy industry. International standard production workshop, advanced manufacturing equipment, precise testing instruments, automatic lithium battery with set of machines, all computer monitoring intelligent aging equipment, bringing together the industry's most excellent product development and management team to ensure that provide customers with qualified quality of lithium battery products.

Mission:

Aims to be a premier solution provider for high quality, efficient, safe, environmental power. We are experienced R&D team focus on the latest development and application in every field of lithium-ion batteries, dedicated and professional spirit of enterprise continuously for customers to develop the most advanced, the safest, most stable lithium battery application solutions, world-class lithium electric OEM/ODM enterprise as the goal, with science and technology into low carbon and green life.

Battery cell:

Welding battery with PCM:

Insulation:​

Battery pack assembled with PCM + connector:

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