Zartek ZA-P7 Spare Battery Li-Ion 3.7V 4400mAH

This Zartek ZA-P7 Spare Battery is a reliable and efficient power option, with a high-capacity Li-ion 4400mAH 3.7V design and micro USB charging socket. The 4400mAH capacity gives you over eight hours of continuous use, meaning no need for regular battery swaps.