Li Ion Battery, Fits Braun, Norelco & Philips 18500
Replacement Norelco 138-10584 Battery - 1.2 Volt, 1650 mAh, NiMH | Battery Mart
Synergy Digital Shaver Battery, Works with Philips Norelco AT880 Shaver, (Li-Ion, 3.7V, 750 mAh) Ultra High Capacity, Compatible with Arcitec 036-11290 Battery - Walmart.com