AA-RECYKO 2050mAH NiMH

They are ready to use from purchase, and when recharged after use they will keep their charge for a year until used. as well as being environmentally friendly.
GP ReCyko batteries combine the power and benefits of a rechargeable battery with the convenience of a ready to use alkaline battery. In high drain equipment they will outlast even the best Alkalines. They are suitable for all applications, and can be re-charged up to 1000 times.