Quote:
Originally Posted by ja_landry
Is it possible to wire a second alternator in a pickup to a battery charger in a 5th wheel?
|
It is possible. Does your pickup have a place to mount a second alternator?
There may also be a higher capacity alternator available to replace the one you have.
1) Heavy gage positive cable to TT connector. Heavy gage ground form TT connector to pickup ground. Circuit breaker near new alternator.
This usually provides mediocre TT battery bank charging do to line and connector voltage losses. Paying careful attention to causes of loss can get usable results.
2) Install a battery to battery charger system. The booster charger raises the voltage output at the TT battery to fast charging voltage even when there is significant line loss back to the tow vehicle.
This usually provides good charging from the tow vehicle. It may provide all the extra charging you need without a second alternator. A higher capacity alternator replacing your current alternator would be a good feed for this system. Short periods of travel often don't provide a charge for long enough to fully charge a lead acid battery (14 to 18 hours required). However substantial charging of deeply discharge batteries is certainly possible.
An analysis of your current system capacity and loads can help make a good choice.