Polymer Li-Ion battery: 3.7 V 700mAh (2.59 Wh, 2.0A rate, 2 Pin Female Molex connector) --- Solar LED lights(SL-24000) battery - UN Approved
Synergy Digital Camera Battery, Works with Pentax Efina Digital Camera, (Li-Ion, 3.7V, 850 mAh) Ultra Hi-Capacity, Compatible with Pentax DL-i63 Battery - Walmart.com