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).
3.7V 650mAh. 48mm x 29.5mm x 5.3mm. Monitronics PTE Ltd #ICP053048A. Lithium-ion prismatic cell. Low-profile, high-density rechargeable cell, ideal for applications where space is a factor....