Amazon.com: Solar Lights Batteries AA 1600mah High Capacity 1.2V Ni-MH Rechargeable AA Solar Battery for Outdoor Solar Lights, Battery String Lights, TV Remotes, Wireless Mouses, Radio, Flashlight : Health & Household
New Liitokala Lii-16c 18500 1600mah 3.7 V Rechargeable Battery Recarregavel Lithium Ion Battery For Led Flashlight+diy Nickel - Rechargeable Batteries - AliExpress