EN UL 2XAAA: Energizer lithium battery, 2x LR3, 1.5 V at reichelt elektronik
Duracell 2.5 Hour 4 Position AA/AAA NIMH Battery Charger Includes 2 x AA and 2 x AAA NIMH 2400mAh Batteries - Micro Center
Amazon.com: Duracell Rechargeable AAA Batteries, 2 Count Pack, Triple A Battery for Long-lasting Power, All-Purpose Pre-Charged Battery for Household and Business Devices : Health & Household