CE Certified 3.7V 400mAh Lithium Polymer Battery
Premium high-density lithium polymer cell delivers stable 1.48Wh output with low self-discharge rate.
Precision-engineered aluminum alloy casing ensures heat dissipation and durability under frequent charge cycles.
Ultra-thin 6.0×20×40mm design fits compact electronics like Bluetooth earbuds, mini drones, and IoT devices.
Built-in PCM protection prevents overcharge, over-discharge, and short circuits for enhanced safety.
Ideal for OEM replacements in medical devices, wearable tech, and portable gadgets requiring reliable power.
Direct factory pricing with bulk discounts for wholesalers – authentic cells with full compliance documentation.






























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I absolutely love OKWISHING and everything I've ordered. The quality is good and the price was affordable. The pillows and comforter has to be stuffed but still worth it.
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Great app maybe hit or miss but it does have great products
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My teenage daughter needed a tube top for her first tattoo. It worked out awesome and was a great deal. She also got a strapless bra that fits overall great. She is Medium build and 5 ft. 3 inches. We received the mercy even before expected, so it was perfect timing being that she wanted the tube top for the tattoo.
Jan.27.2025

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CE Certification hot sale high quality 602040P 3.7V 400mAh 1.48wh rechargeable Lithium polymer Battery for electronic products
$1$1.76-43.18%
Nominal Capacity:
150mAh-500mAh
Nominal Voltage:
3.7V
Battery Type:
A-grade Polymer Battery
Lithium Battery Rechargeable
Li-polymer
Quantity:
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