I CHARGE MY AA RECHARGEABLE 2200 NIMH BATTERIES ALL THE TIME ON MY PULSAR 1 I CHARGE THEM IN THE RADIO AT NICE LOW AMPERAGE LIKE A TO 1.4 AMPS AND I CHARGE 8 AT A TIME AND IT WORKS GREAT TAKES A WHILE BUT WOULD RATHER CHARGE SLOW SAFELY THAN FAST AND MELT SOMETHING BUT YES YOU CAN I HAVE BEEN DOING IT FOR YEARS