SOLAR PANEL
Posted: Wed Feb 10, 2021 2:10 pm
I have a dual battery system installed (75Ah) and its capable of having a solar panel plugged in. What wattage panel should I buy ?
You need a solar charge contoller either Maximum Power Point Tracker MPPT or Pulse Width Modulation PWM to make this work. This unit converts solar power high volts to 12 v to charge the batteries
MPPT is normally favoured.
With a 75 Ah battery a 75 Watt panel will suffice.
Solar Charge converter should be at least a 10 Amp unit. But think of the future if you want to size up and maybe do a 75v 15 Amp unit such as the Victron.
Just for comparison I am running a Victron 75/15 with 2 x 100 watt panels and 2 x 105 ah batteries in my caravan.
Cheers
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