recharging circuit

merlin2069er · 16th February 2009, 10:26 PM

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.

16th February 2009, 10:26 PM	#1
merlin2069er diyAudio Member Join Date: Sep 2008 Location: Toronto	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

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16th February 2009, 11:01 PM	#2
Saturnus diyAudio Member Join Date: Jun 2005 Location: Copenhagen, Denmark	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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