none can read your mind
outright useless seek solution or simply non sense with no info,
what is ebl ?
what is aa aaa, is it rechargeable battery of AA or AAA size ?
what is the electrochemistry compounds or type of this rechargeable battery Zn-MnO2, rechargeable Ni-Zn b, alkaline: RAM, NiCd, NiMh, Li-ion or Li-Po ?
what is this rechargeable battery capacity, how many cell in each battery of that type
how many voltage read in charger, and reread how many if represent with a correct battery or diode; to distinguish linear or nonlinear output by the charger