12V dry battery question
"Bart Bervoets" wrote in message ... I want to charge a 12V lead cell as used in security systems in my car to use with an inverter. I want to feed it a constant charge to allow the battery to be full all the time. Do i need to build a special charge circuit or will a diode in front be sufficient to stop reverse flow to my car battery? Bart Bervoets 'probably' your best bet would be to install a "DBI" (dual battery isolator). this is a solid state device that is basically a bridge rectifier. diodes steer the charging currents to the batteries and tell the regulator when to kick in. IME this works best when the 2 batteries are closely matched as to capacity. |
12V dry battery question
On Tue, 14 Mar 2006 17:01:07 +0200, "Bart Bervoets" wrote:
I want to charge a 12V lead cell as used in security systems in my car to use with an inverter. I want to feed it a constant charge to allow the battery to be full all the time. Do i need to build a special charge circuit or will a diode in front be sufficient to stop reverse flow to my car battery? There is a kit available in Australia for an automotive charger for sealed lead acid batteries. It uses a switchmode DC-DC converter to step up the output so that an adequate (and controlled) charge will result for variable input voltage. Highly recommend you go this route. |
12V dry battery question
I want to charge a 12V lead cell as used in security systems
in my car to use with an inverter. I want to feed it a constant charge to allow the battery to be full all the time. Do i need to build a special charge circuit or will a diode in front be sufficient to stop reverse flow to my car battery? Bart Bervoets |
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