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Outdoor & Recreation
Campers, Vans & 4WD's
Aux battery charging from 12V cig socket
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<blockquote data-quote="condor22" data-source="post: 296828" data-attributes="member: 1932"><p>Bundy,</p><p></p><p>The guy gave you a bum steer, I'm assuming the 100AH you have is an AGM, if so, it needs 14.5VDC to charge properly, your alternator typically puts out 13.8V which is not enough.</p><p></p><p>Many years ago, I got a 40AH Thumper included in the deal with my caravan, I tried charging it from the cig socket to run my Engel in the rear of the car. It didn't run my fridge properly and it stopped holding charge in less than a year. 2 reasons, first 40AH aint enough, it draws to deep and secondly the Thumper wasn't getting enough charge. I tried taking the cheap way out and had I have paid for it the Thumper was worth over $700.</p><p></p><p>I replaced it with a DCDC charger and a 100AH AGM. I still have the Redarc BCDC1220 DC to DC and the battery lasted 10 years (I replaced it earlier this year.)</p><p></p><p><em>Invariably, taking the cheap way out, ends up costing a whole lot more. Not withstanding things usually fail when you need them most !!</em></p><p></p><p>Get a DC to DC and get a good one. If you go the Redarc BCDC1225, it is also a solar regulator and can be wired to auto switch between solar and engine charging.</p><p>If you already have a decent regulator, the BCDC1220 is all you need.</p></blockquote><p></p>
[QUOTE="condor22, post: 296828, member: 1932"] Bundy, The guy gave you a bum steer, I'm assuming the 100AH you have is an AGM, if so, it needs 14.5VDC to charge properly, your alternator typically puts out 13.8V which is not enough. Many years ago, I got a 40AH Thumper included in the deal with my caravan, I tried charging it from the cig socket to run my Engel in the rear of the car. It didn't run my fridge properly and it stopped holding charge in less than a year. 2 reasons, first 40AH aint enough, it draws to deep and secondly the Thumper wasn't getting enough charge. I tried taking the cheap way out and had I have paid for it the Thumper was worth over $700. I replaced it with a DCDC charger and a 100AH AGM. I still have the Redarc BCDC1220 DC to DC and the battery lasted 10 years (I replaced it earlier this year.) [i]Invariably, taking the cheap way out, ends up costing a whole lot more. Not withstanding things usually fail when you need them most !![/i] Get a DC to DC and get a good one. If you go the Redarc BCDC1225, it is also a solar regulator and can be wired to auto switch between solar and engine charging. If you already have a decent regulator, the BCDC1220 is all you need. [/QUOTE]
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Outdoor & Recreation
Campers, Vans & 4WD's
Aux battery charging from 12V cig socket
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