GP 4-pack AAA Ni-MH GP 600mAh Ni-MH 4 pack AAA batteries

GP Batteries GP-60AAAHC-C4.
600mAh Ni-MH AAA size rechargeable batteries (pack of 4).
Ultra-high capacity.
Fast charge capability.
Up to 1000 recharge cycles.
Environmentally friendly.

For suitable holders see Battery holders and boxes