Will a 100 watt solar panel be enough

pianotuna wrote:

Darklock wrote:
please correct me if I'm wrong, (it is the internet, so I'm sure someone will), I read that while driving, modern alternators put out only a small trickle charge once TV battery is fully charged. And that with distance from alternator and small gauge wiring, there is minimal charge getting to trailer battery. Originally I assumed that the truck would keep camper charged, but what I have read has told me otherwise.
There will not be 8 hours driving, probably no more than four hours any day. Probably spending two to three days at a time at each destination. Some stops will be with hook ups others just boondocking, so I need enough to not kill my battery.

Hi Darklkock,

You are correct--but there is a way to fix the problem. You do have to throw some money at it. Use a dc to DC charger.

Get one of these:

https://www.amazon.com/Renogy-Battery-Batteries-Multi-stage-Charging/dp/B07Q5VYPCF/ref=sr_1_3?crid=24ISMNS5CEXIC&dchild=1&keywords=renogy+20a+dc+to+dc+charger&qid=1613847979&sprefix=Renogy+20a%2Caps%2C399&sr=8-3

Place it after the charge solenoid on the "house" side.

This website may give a better understand of solar and has a good spreadsheet that may be used for an energy audit.

https://freecampsites.net/adding-solar/