Originally Posted by Thee Jimbo
If you are still on, how can one make sure their alternator is strong enough. I have a 1997 pathfinder, without a towing package, but plan on addding a line to charge my trailer battery
via a 7 way connector. Any input would be really helpful, even if it means getting a stronger alternator.
You don't need to worry about the amperage of the alternator, you need to worry about getting the full voltage to the trailer battery
. Generally, this is done by using heavy gauge wire (at least 10 gauge), all the way from the TV battery
to the trailer battery.
Another alternative is to use a DC/DC charger which actually steps up the voltage automatically even with a smaller wire.
DC Input Battery Chargers for 12 volt Lead Acid and SLA Batteries useful for electric golf trolley