solar

[64thunderbolt]

I have a small 15w panel & 7 amp controller just for maintaining between trips. Is it possible for it to drain @ night? I have noticed that my batt voltage is less @ night than during the daytime in full sun. Thanks for any opinions. I don't remember the mfg of the unit. I just wanted a trickle charge when not in use.

[RoyB]

I don't know how much power a 15WATT Solar panel produces but a 120WATT Solar Panel only produces up to 14.4VDC @ 5 AMPS from its solar controller when in high sun during the day.

Not a whole lot of battery charging power.

My RV Trailer consumes around 1-2AMPS 24/7 with its so called parasitic drain running the sensor panels here and there including the propane detector. We always have a night lite going as well...

If the furnace blower ever kicks ON the blower fan consumes between 6-8AMPS DC current.

Not surprising that a 15WATT solar panel only charging during the high sun portion of the day would keep up with battery usage at night.

Roy Ken