Solar MPPT and lithium batteries
I switched my AGM batteries to lithium's. I can't get a definitive answer on MPPT charge parameters, except to "user define" which I have done. My question is: since MPPT chargers rely on voltage drop...
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2oldman wrote:LittleBill wrote:There seems to be this misconception they do not, but they do.
lithium battery's drop voltage. not sure who told you they don't...
Actually I'm not sure if it's the BMS or the controller that's more in 'charge' of the charging. I set my Outback controller to the voltages specified, set Absorb to as near zero as possible, and it works fine.
The voltage will vary quite a bit when charging.. at least mine do.
the bms is safety system. its not suppose to engage unless there is an issue. that being overvoltage, undervoltage, temperature, cell voltage deviation and amperage.
the charger does all the charging. period.
