Rechargeable Batteries NIMH 1.2 V 2/3 AAA (Not AAA) 400 mAh for Solar Lights, Pack of 6, PKCELL, (2/3 AAA is Shorter Than an AAA Battery) : Amazon.com.be: Electronics
AAA Rechargeable Batteries for Panasonic, 630 mAh 1.2 V Ni-MH AAA Battery for Cordless Phone, 4 Pezzi : Amazon.com.be: Electronics