frater secessus

retired snowbird

from a reddit comment:

400 watts is going to be overkill for a [100Ah LiFePO4] battery

Depends on what we mean.

At max practical harvest a 400w panel feeding a 100Ah LFP would be ~0.27C, well within the comfortable charging range of the battery. “Overpaneling” the bank has a few advantages:

  • better harvest in poor conditions
  • better support for loads
  • allows recharging in a shorter window of time

Updated:

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