question

anguz avatar image
anguz asked

series or parallel

hi i have an mppt 100/20 and 2 off tsm-265dc05.08 panels

265 watts 30volt 8.66amp

do i wire in series or parallel?

the positioning will be compromised, as the angles cannot be too steep

it will be charging a 12v lead acid

i wont be pulling more than 5 amps load, for about 5 hours a day 4 days a week


MPPT SmartSolar
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1 Answer
Kevin Windrem avatar image
Kevin Windrem answered ·

If you have any partial shading on your array then parallel usually produces the best results. Otherwise is doesn't matter much. If you have long runs from the array to the MPPT then series connection will provide slightly lower loss due to voltage drop in the wiring.

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