Forum Discussion
otrfun
Apr 16, 2022Explorer II
time2roll wrote:There are compromises no matter how you use a lifepo4. Users can choose to focus on max longevity, max charge/discharge performance, or anywhere in between.pianotuna wrote:Float charging like lead-acid above the resting voltage is not the best for LFP. Properly floating 100mV to 200mV below resting is no problem at all. That would be 13.2 on a 12v LFP that would ordinarily rest at 13.4 volts and will not affect longevity.
Charging to 100% is not desirable for Li, if you wish to have maximum cycle life. Neither is float charging.
This is part of the reason "lithium" converters do not work well with LFP batteries. Many will float at 13.6 to 14.6 volts and reduce the life.
Focus on max charge/discharge performance (high c charge/discharge) and get 1000 - 2000 cycles.
Focus on max longevity (low c charge/discharge) and get 3000 - 4000 cycles.
1000 cycles, the worst case scenario, will net the average user at least 10-15 years of use before the battery experiences a 20% reduction in ah capacity.
In this context, are elaborate charge/discharge protocols really all that necessary or important?
About Technical Issues
Having RV issues? Connect with others who have been in your shoes.24,217 PostsLatest Activity: Mar 22, 2025