I’ve read a bunch of posts and everyone has conflicting opinions. Some of the more crazy being that you can leave your lipos charged for a couple days and they will be fine (spoken by some guy who was flying RC helicopters for 4+ years!). Obviously, I’m not going to do that, so here are my questions. (Sorry the second question is similar to a question I posted before, but I just wanted to explain my question clearer because I read a post on RCGroups that this could seriously mess up my batteries)
If I am parallel charging 3S lipos (all start within ±0.02 V) and during the charge the cell voltages are sometimes off by almost 0.1 V, but at the ending of the charge all cells are within ± 0.02 V (4.18 V to 4.21 V), will my lipos be okay, or will this drift harm them over time? These are brand new Tattu 3S lipos with less than 10 charge cycles on each.
When I get home from the field, my lipos are at 3.73 V/cell. If I am flying the next day or week, should I put them back up to storage charge (3.8 V/cell) and will this shorten/extend/no effect the lifetime of my lipos? I assume these XT30 connectors take many many cycles to wear out compared to JST PH.
I live about 5 min from the park where I fly, and I fly in the evenings. Is it okay to storage charge my lipos the second I get home? My lipos are slightly warm to the touch (warmer than if I left them overnight), but not hot at all. If I get two successive flights on the weekend, is it okay to charge up right away (5 min cooldown on the drive home)?
Also, is it okay to fly 5 min after I finish charging? The batteries are not even warm (charged at 1C so 2.2A for 5 3S in parallel)