iomega P/N 31021100. Lithium-Ion prismatic battery. 4.2 Vdc max. 900 mAh min. 54mm x 34mm x 7mm. 23mm leads with 2-contact female connector (2mm centers).
RCR123A. 3.0V 750mA. Rechargeable LiFePO4 battery.16.5mm diameter x 34mm long. Rechargeable replacement for CR123 lithium cells used in flashlights and cameras. Charger for this battery - CAT# BC...