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Hey all about to do a trip round Australia:
Currently have 4x100ah 12v batteries connected in parallel in car and camper that I want to keep topped up. Already have a dcdc charger and battery charger but found wasn't enough on my last leg. Just bought a residential jinko solar panel and wondering what would be the best mppt for this size and is a victron mppt going to step down the voltage efficiently ? I'm guessing I'm gonna need 150/35?
Cheers,
Jordan.
Plug your figures into the Victron online MPPT calculator.
A 100-50 would probably be enough, 2 parallel panels array.
A 150-60 might be a bit overkill, but has extra features.
For a 12v 400ah battery.
If you only have one panel and are not planning to add more; then something on the 30A charging range will be fine. So 100/30 will do as 400W ÷ 12v is 33A.
The 49.8VOC is way under the 100v hard limit with one panel.
