Originally Posted by
Dave H
Yes and no. Unless you are charging a ridiculously large battery, the car battery will easily provide enough power to charge a battery, a few probably, without running the car.
But, modern car batteries really don’t like being ran down low very much, it really impacts their life. They use thinner plates to get more starting current than they used too. At the least be sure to start the car occasionally, let it run for a bit. Safer to unhook the charger before starting (even though I'm guilty of not with no ill effects). And be aware the battery probably won’t last as long, pay attention to how well it starts, try to catch it before you get stranded!
Better solution, pick up a deep cycle / marine battery and use that.
Thanks,but this powering from my car battery is only going to be done as an "emergency",as now,just to finish charging what the a.c. power started before it died,then maybe to put a storage back on,maybe to do maybe one or more charges/storage till the new 680 come in.
I rely mainly on a.c. power. At least I can still use this charger! Thanks,Huck50.