I am sizing the maximum Amp output to charge LifePO4 batteries. What I am coming up is the following:
4 x Rich Solar 9BB solar panels:
https://richsolar.com/collections/solar-panels/products/200-watt-solar-panel
Setup
However when I checked the checked the same on https://www.explorist.life/solar-charge-controller-calculator/ the recommendation for the setup above is much larger charge controller:
Thanks in advance for help with properly choosing setup and components.
Best
4 x Rich Solar 9BB solar panels:
https://richsolar.com/collections/solar-panels/products/200-watt-solar-panel
ATTRIBUTE | VALUE |
Maximum Power(Pmax) | 200W |
Maximum Power Voltage(Vmp | 20.4V |
Maximum Power Current(Imp) | 9.80A |
Open Circuit Voltage(Voc) | 24.3V |
Short Circuit Current(Isc) | 10.2A |
Maximum System Voltage(Vmax) | 1000VDC |
Temperature Range | -40°C ~ 90°C |
Max Series Fuse Rating | 20A |
Setup
- 4 Solar Panels in 2S2P configuration that will bring 41V Vmp | 20A Imp because RV is pre-wired with 10 AWG wire ~30 feet long the from panels to charge controller
- Victron SmartSolar Charge Controller 100 | 30 per Victron calculator should be large enough if I made no mistakes there.
- 30A MC4 inline fuse - any difference where to install fuse - closer to solar panels or closer to charge controller?
However when I checked the checked the same on https://www.explorist.life/solar-charge-controller-calculator/ the recommendation for the setup above is much larger charge controller:
- Victron 150|60
- If the Array Short Circuit Amperage is greater than the Max Series Fuse Rating, each series string must be protected by 2x 20A PV Fuses connected to the positive wires on the ‘panel side’ of the MC4 Combiner
Thanks in advance for help with properly choosing setup and components.
Best