Lifepo4 float setting?
I have not had to deal with a float setting so far with PWM controllers but I have a Victron 75/15 coming tomorrow and reading up on the settings,it is confusing especially the float setting..Some say...
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otrfun wrote:jaycocreek wrote:What are you striving for? Absolute max cell longevity? Max usability/ah capacity? Or, somewhere in-between?
I'm still confused about float with LFP batteries..Is it better to be in float or bulk the majority of the time?
Off-Grid Garage say's one should set float and bulk the same therefor it is in bulk mode charging when the sun is out vs floating or using battery capacity..
If you want absolute max cell longevity float a 12v lifepo4 at ~13.15V (~50% SOC). Downside, minimal usability/ah capacity.
If you want max usability/ah capacity, float the battery between 13.6 - 14.4v (~99 SOC). Downside, some reduction in cycle life. More so as you approach 14.4v. Floating at 14.6v is not recommended.
Can't have your cake and eat it, too. Pick your poison.
Well said, thus based on preference, one might sense how truly forgiving LFP charge parameters can be…Theorist aside, in actual usage LFP charging parameters have proven quite flexible - JMO here, but (unlike spin-theory offered as fact…) based on real-world charging experience….
3 tons
