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Class D Switching Power Amplifiers and Power D/A conversion

recharging circuit
recharging circuit
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Old 16th February 2009, 10:26 PM   #1
merlin2069er is offline merlin2069er  Canada
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Default recharging circuit


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?

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Old 16th February 2009, 11:01 PM   #2
Saturnus is offline Saturnus  Denmark
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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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