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  • Simple Ni-cad battery charger with Led indicator

    Please, do not take it personal, at all. It was jast a try to help you and anyone interested to undestand the driving principles. I've helped several friends to restore smiles after having ruined cheap chinese accu-drills after first use, that used the same circuit for charger. Chinese are smart enough to split current and voltage limmiting between this circuit and parameters of the transformer (the transformer having the more important role of these both). Additionally, they mounted these "chargers" in sexy small boxess (plastic adds to the cost) which leave no space to assemble simple charger circuit in them. So I've described the principles of acheaving some simle indication of charged state. Feel free to delete my comments or ban me (whatever this platform suggests) if you...see more »Please, do not take it personal, at all. It was jast a try to help you and anyone interested to undestand the driving principles. I've helped several friends to restore smiles after having ruined cheap chinese accu-drills after first use, that used the same circuit for charger. Chinese are smart enough to split current and voltage limmiting between this circuit and parameters of the transformer (the transformer having the more important role of these both). Additionally, they mounted these "chargers" in sexy small boxess (plastic adds to the cost) which leave no space to assemble simple charger circuit in them. So I've described the principles of acheaving some simle indication of charged state. Feel free to delete my comments or ban me (whatever this platform suggests) if you feel offended. Have fun :)

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