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-   -   recharging circuit (http://www.diyaudio.com/forums/class-d/138726-recharging-circuit.html)

merlin2069er 16th February 2009 10:26 PM

recharging circuit
 
Hi,

just wondering if anyone is running there class D amp with a SLA battery?

I'm looking for a recharging circuit for a 12v SLA battery - anyone have any luck with one?

Thanks,
JG

Saturnus 16th February 2009 11:01 PM

For a 12V setup a 20Ah battery (either a single one or several smaller parallelled), you basically wouldn't need a charger if you have a 10-15W amorphous solar panel to keep them topped off.

At any rate, 20Ah should give you about 60-80 hours total running at maximum music output at 12V. So at the most you're looking at having to recharge the batteries maybe once a week if you remember to turn it off in between listening sessions.

Any battery charger that can charge 12V batteries would do for that, just disconnect it after ended charging.


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