Howardly 1.2v AA Ni-MH Rechargeable Battery, AA 900mAh 1.2V Rechargeable Battery
In addition, recharging the battery every 3 months can make its lifespan longer.
Howardly Ni-MH AA 600mAh 1.2V Rechargeable Battery for Solar Lights, AA 1.2V Rec
Howardly Ni-MH AA 600mAh 1.2V Rechargeable Battery for Solar Lights, AA 1.2V Rec