backchannel: more responses to file under Confidently Wrong
from reddit:
Your OEM alternator is not compatible with the LiFEPo4 battery.
Narrator: it wasn’t a LiFePO4 battery. The Bosch L5075 is a sealed (“maintenance free”) lead-acid battery.
BTW, PO is phosphate. Po is polonium.
They should not be directly connected.
Direct charging LiFePO4 is fine. I’ve provided both theoretical and empirical evidence on the matter to our bloviator several times. But as they say you cannot reason someone out of a position they did not reason themselves into.
Get the required parameters from the Bosch battery. Set the solar controller to those parameters.
Good advice in general. In this case I haven’t seen any specs from Bosch on this model. It’s not a real deep cycle, so why would they?
OP is using the Renogy Rover’s SLD profile1. While probably not optimal, it’s probably going to work better than trying to walk them into USER mode and some informed guesses on setpoints.
Install and properly program a DC2DC charger between the start battery and the LiFePo4.
It’s not LiFePO4, and DC-DC generally isn’t required.
Sterling Energy and Victron Orion are good brands.
Agreed.
To repeat; a relay is not the way to charge a LiFePO4 battery from a OEM alternator. If you are lucky the alternator has not over heated and shortened it’s life.
Repeating misinformation doesn’t make it any more true, although it might convince gullible newbies. And that would be a disservice to them.
- it is OK to be misinformed; do whatever you want with your own gear. IDGAF.
- it is not OK to spread misinformation to newbies who are asking for help. Stop it.
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14.2v Absorption for 2 hours, 13.8v float ↩