I use a Thunder Power AC6 charger, 4.8 amps balance charge. I have noticed that I get a weird spike, well dip really, on every single charge. The battery(s) are fine, all are at 100% rated capacity or above (Gens Ace) and don't do anything odd. I'm mainly curious as to what is going on. Here is a screenie of the monitor and the dip I mentioned:



Any ideas?

Does it always happen at the same time? Not uncommon for chargers to pause momentarily after a set period to check how the battery is responding, as a safety check as I understand it.

Yeah, normally about 10 mins into the session. Does not seem to depend on discharge level or temp or anything besides time. I bet you are right, thanks.