LiFePo4 lithium battery charging questions
TL DR – I have some questions related to charging 12V LiFePo4 lithium batteries: *How to best use my solar to charge batteries? *Assuming I usually keep the lithium batteries at a partial SOC, what ...
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I am not speaking for StirCrazy, but I think I may have an idea what he is referring to based on what Battle Born said in a link I posted earlier in this thread.
https://battlebornbatteries.com/set-tristar-ts-45-ts-60-pwm-charge-controller-used-lifepo4-battle-born-battery/
https://battlebornbatteries.com/set-tristar-ts-45-ts-60-pwm-charge-controller-used-lifepo4-battle-born-battery/
...You can use a voltage range between 14.2-14.6 volts for the bulk and absorption charge stage, There is no problem using an absorption voltage of 14.6 volts. We use a set absorption time of at least 20 minutes per battery because our BMS uses a passive balancing at the top of the charge cycle. When the battery voltage exceeds 14.2 volts this balancing will occur and ensures that the cells remain at the same state of charge, which helps for pack longevity and performance. This preset time will allow and ensure that this balancing occurs. The controller should sense the voltage preset has been hit during its charge cycle which will allow it to move to a float voltage. If a 90 minute absorption does not fully restore the battery and achieve a full charge then it may indicate the battery is out of balance and needs an extended absorption charge to reach a balanced charge. If you have any questions, call us at...
