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Dual-use battery case B4 for 20700 & 21700
* Quality Plastic Case for Battery Storage
* Brand: KeepPower
* Part No.: B4
* Application: 20700 & 21700 battery(Unprotected)
* Made in China
●  Part No.: B4
●  Quality Plastic Case for Battery Storage
●  Brand: KeepPower
●  Application: 20700 & 21700 Cylindrical Battery (Unprotected)
●  Life: Lock & Unlock for over 10,000 times
●  Designed by KeepPower, Made in China