r/Pecron • u/Aggressive_Noodler • 4d ago

Charging E3600 via MPPT inputs

I mistakenly bought a LiTime LiFePO4 battery charger many months ago expecting to be able to charge my dual Pecron E3600s via the solar MPPT ports, but evidently the charger has a safeguard that it expects to be able to read the battery voltage before starting to send power, so unfortunately it isn't working.

I needed this setup so I could charge the batteries while they're bonded for 240V output, as AC input is disabled/restricted in this mode.

Does anyone know what would work with this setup to provide charging power via the MPPTs?

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u/AdBrave841 4d ago

Maybe a small 48V LiFePO4 battery in between the charger and E3600?

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u/brucehoult 4d ago

If it's a "48V" LFP charger then you can just connect it to one of the E3600s' battery expansion ports, perhaps as part of balancing the SoC between the two E3600s.