Quote:
Originally Posted by oldtamiyaphile
So your car sits at 12.8v as long as speed is below 40mph? ...
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Yes. Unless the voltage or load crosses other limits/thresholds. And climbing hills at low speeds the voltage will sit even lower. It also will maintain a low charge in some conditions. For example, just before climbing a slow hill from a stop, my voltage meter shows say 12.34. I key on, begin the climb, flip the alternator switch on, and the charge climbs and stays only at 12.5 volts during the whole climb.
We're probably a little off topic for the OP though...
I think one message of the thread is probably that removing the belt is an option but not necessary, though it would be simple. You could do an alt on/off switch instead and have less range anxiety. Whether you remove the belt or install a switch, get a deep cycle battery and a plug-in, on-board charger with a capacity 50% or more of the amp hour rating of the battery.