12v Constant DRAW
Hi guys, I have something 12v draining my batteries overnight. I have everything shut off on the camper, and it still drains them over night. Just put in new batteries as well. Still drains them...
Forum Discussion
several things will be a constant draw unless disconnected.
1) entertainment system. most in the "off" position are really "standby" and draw enough current to drain a single 12V battery in several days
2) CO and propane detectors hooked to 12V
these alone shouldn't drain the battery overnight. but, if the battery is drained, and you think your going to charge it in less than 12 hours with the common WFCO charger, well, nope, won't get near full charge in that short time. yes, it is supposed to put out 45-55A, but seldom will do so, usually gets stuck at 13.6V and 10A or less charge current.
In any case, to keep batteries from draining, you need to either
a) install a battery disconnect switch
b) remember to turn off or disconnect the things that are always on
1) entertainment system. most in the "off" position are really "standby" and draw enough current to drain a single 12V battery in several days
2) CO and propane detectors hooked to 12V
these alone shouldn't drain the battery overnight. but, if the battery is drained, and you think your going to charge it in less than 12 hours with the common WFCO charger, well, nope, won't get near full charge in that short time. yes, it is supposed to put out 45-55A, but seldom will do so, usually gets stuck at 13.6V and 10A or less charge current.
In any case, to keep batteries from draining, you need to either
a) install a battery disconnect switch
b) remember to turn off or disconnect the things that are always on
