So here's the challenge...........
I have a Grundig radio that uses SIX D-Cell alkaline batteries. A somewhat pricey affair to replace these things when they run out. I can't blame the radio, it sips power and the batteries last a long time. The unit also has a 9V wall wart adapter.
What I want to do is replace the six D-cells with six AA rechargeables using those plastic battery adapters. I have no doubt it will work fine and the batteries will last a respectable amount of time.
I guess I could take the AA batteries out and put them in a charger when they run down, but what would be the fun in that?
No, I want to have the unit recharge the batteries while the 9V adapter is plugged in. Even one better, use a 12V source or adapter.
The challenge is what circuit is required to do this correctly?
Any takers out there for this challenge?
Poncho
I have a Grundig radio that uses SIX D-Cell alkaline batteries. A somewhat pricey affair to replace these things when they run out. I can't blame the radio, it sips power and the batteries last a long time. The unit also has a 9V wall wart adapter.
What I want to do is replace the six D-cells with six AA rechargeables using those plastic battery adapters. I have no doubt it will work fine and the batteries will last a respectable amount of time.
I guess I could take the AA batteries out and put them in a charger when they run down, but what would be the fun in that?
No, I want to have the unit recharge the batteries while the 9V adapter is plugged in. Even one better, use a 12V source or adapter.
The challenge is what circuit is required to do this correctly?
Any takers out there for this challenge?
Poncho
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