For any useful charge you need a panel of 80watts minimum.
Halfords solar panel review.
Ring obd power cable for solar battery maintainers extra info.
Even on cloudy days the halfords 2 4w solar battery maintainer produced a good supply of free and green power keeping the car s battery at a healthy 12 5v or above and after two weeks use the car started briskly on the first flick of the key.
The halfords solar maintainer that i use is 6w so it provides a maximum of 0 5amp so unregulated should be fine.
That charging current would barely keep pace with the current requirements of 1 of your led lights in the habitation area.
That halfords panel is 6watts capacity so under perfect conditions could theoretically produce about 0 4 amps to push back into the leisure battery.
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Here is our short list of the best quality and most reliable panel manufacturers on the australian market based on company history quality real world performance service and feedback from solar industry professionals.
It just trickle charges the battery to offset the parasitic drain from the vehicle electronics.
Best solar panel manufacturers.
The halfords solar battery maintainer 6w is a clean green energy solution wherever you are to keep your battery level topped up.
Halfords solar battery maintainer 6w extra info helps reduce power drain from onboard electronics.
Buying a 40 80 or 120w solar panel mounted on the outside top of the roof would be a good solution if you wanted to regularly stay at non ehu sites even a 40w panel is capable of 3amps so would need a regulator.
This list is generally applicable to most regions with established solar industries including europe and asia however in japan panasonic has.
I bought a 2 4watt halfords solar battery maintainer just to keep the starter battery topped up during storage.
It is ideal for maintaining 12v batteries in cars motorbikes boats trucks caravans and other applications up to 250ah.