Redarc 40 amp DC to DC Charger issue

otrfun wrote:

StirCrazy wrote:
I am installing mine on a ignition controled Upfitter switch. this way it will only go when the key is on AND the switch is turned on. that way if my batteries are close enough to full the solar can handle it I can leave it off, but if I had a few days of bad weather I can switch it on to give the solar a hand. If I forget its on and I turn the truck off it will shut off.

Steve

If I understand your install correctly, you shouldn't need to remember to do or switch anything if you install a battery isolator. The only caveat I can think of is the possibility the combined charge current from your dc to dc charger and solar exceeds the charge current capability of your batteries. Then, yes, you may want to manually switch one or the other off. Either way, a BI would still 100% protect you from TV battery discharge---even if you inadvertently left the Upfitter and ignition switch on, with the engine not running. Without the BI your dc to dc charger would discharge your TV battery.

We've had a BI, dc to dc charger and solar hooked up in our truck camper for 9 months with no issues. Works silently in the background. No need to remember any switch settings. If the alternator goes off-line for any reason (failure or engine not running), the dc to dc charger won't work.

ya I was thinking that with the dc to dc charger you don't need an isolater as it basicly is one, if its off there is no passthrough if its on then you get charging. the reason I want to be able to manualy turn it off is more to take strain off the altanator when it isn't nessasary. so I would be treating my dc to dc charger as an emergency power sourse only. so if it has been cloudy and I am getting a lousy charge from the panels I can turn it on while I am driving to help out and so on..

Steve