eneloop HR4UTG (NiMH 800 AAA 1.2V)
Precharged and ready to use immediately
Considerably longer run time than conventional Nickel Cadmium batteries
Low self-discharge: once charged, eneloop rechargeable batteries keep 90% of their charge after 6 months and 85% after 12 months
High performance at low temperatures down to -10 °C
No charger required - Recharge batteries inside the PosiTector when connected via USB.
eneloop website: http://www.eneloop.info