Amazon.com: Kratax AAA Batteries Rechargeable 1100mWh Lithium Rechargeable Triple A Battery with Charger 1.5V Constant Voltage Output, 1600 Cycles, for Toys, Remote Controls, Flashlight-4 Pack with Charger : Health & Household
The 1.5V rechargeable li-ion battery is safe and has a large capacity.
Rechargeable battery on blue background. Positive and negative terminals of rechargeable lithium-ion batteries. AA and AAA size of old Li-ion battery Stock Photo - Alamy
Let's Talk Batteries! Probably the Most Confusing Topic--But Most Important! - Fenix Store
Amazon.com: PKCELL ICR18500 Battery 3.7V 1400mah Li-Ion Rechargeable with Button Top 6PC(They are not 1865mm Batteries Also Not AA Size Battery) : Health & Household