Ok so I run 2 5s50000mah lipos in series to make a 10s5ah pack. I carry and extra set with me so I can get more range. When I plugged my lipos into my series connector they sparked and the 4mm plugs burned on the lipos but the series connector was fine. This is where my questions come in.
I went to a local hobby shop to see if they sold the 4mm connectors and he said “I’d never sell those garbage Chinese connectors” he told me I need to use Dean plugs. I was thinking xt60’s if I was going to change?
I then said well I didn’t change them because I use a shitty b6 charger with a parrelll 4mm charging/balance board then he said that’s the best way to burn my house down. So my question is, should I change the lipos to dean connectors and should I only charge one battery instead of 2 at a time?