I am wondering if folks disconnect solar charger(or panel) or lithium battery after each use of your trailer (I am not talking about winter storage)?
Asking as per this article, keeping LiFePo4 battery at high SOC isn't good for the battery life:
Let's say I use my trailer mostly during weekends, for the rest of the week, if I don't disconnect either solar or battery, what's going to happen -
1. Say battery started at low SOC after weekend use. during the weekday, solar charger controller would slowly top it off at 14.4v which is ~100% SOC (high SOC)
2. During night, parasitic current will bring the voltage slightly down.
3. Next morning when the sun comes up, since the voltage is below 100% the solar charger controller would top it off again at 100% SOC.
So I think the battery is cycle between 100% SOC and maybe ~99% (depends on parasitic current amp), this seems to be bad for Lithium battery life if I read that article right.
So do folks disconnect one of these 2, when you are not using the trailer? I am not talking about winter storage, just in camping season but when you are not using your trailer.