New original Sanyo 18500 battery 1300 mAh. Tested 3.75V +/-0.2v, Lot of 2 Pieces | eBay
2x Flashlight Camera EOS 18490 18500 Li-ion Battery 3.6V 2040mAh by Japan cell | eBay
IMREN 18500 Rechargeable Li-Ion Battery 3.7V 1200Mah with Button Top (4PCS) | eBay
4pcs Button Top 18500 3.7V 1400mAh Li-ion Rechargeable Battery for Spotlights | eBay
Amazon.com: JESSPOW 18500 Rechargeable Batteries 4 Pack with Charger, IMR 18500 Rechargeable Li-ion Battery 1600mAh 3.7V [ for Flashlight, Solar Garden Light ] with Flat Top : Health & Household