Alternator not charging deep cycle battery
I have a 1998 Fleetwood Tioga with an optima blue top deep cycle battery. Recently, the alternator has not been charging the battery and i do not know why. How does this charging system work and what ...
Forum Discussion
Some alternators only output around 13.8 volts. Any 12 volt lead-acid battery needs at least 13.8 volts to start to charge. This voltage will be enough to fully charge or maintain a battery on a trickle charge, but charging time will be very long at 13.8 volts. To charge most batteries in a reasonable time, alternator output must be around 14.2 to 14.5 volts measured at the battery posts. The most likely culprits could be the battery is on its way out, loose connections, or the alternator is no longer outputting sufficiently.
