Folks, a quick question for those who are knowledgeable about batteries. Background - I have a P3A with two batteries. A friend wanted something filmed and I agreed, but only had one battery charged, and we estimated that to get everything done comfortably would take more than one battery. I put the second battery on to charge and was tempted to unplug it before it had completed and the lights had gone out - we were getting into falling light / weather pressure (it's Ireland, we get used to that). Anyway, if I had unplugged the battery when it was, say, 80% charged, would that affect it? I'm thinking of the balance here - easy to see in the app. Would there be any long term or short term problems if the balancing had not completed? On my old PV+ I used to do a quick top up all the time and often wondered was this harming the batteries?