1. High quality approved: use genuine Grade A Sanyo lithium ion battery cell UR14500P
2. Safety guaranteed: with all necessary protection---Seiko IC chip and AO Mosfets on the PCB to protect battery from over charge, over discharge, short circuit, over temperature and low temperature
3. Nice look: quality shrink wrap (black or clear) and gold-plated protection circuit module
4. OEM battery is available