Hi, I posted this on POTV yesterday and was advised to join up here and get some advice. I am thinking I may well need to replace the lipo on the Tugboat DNA250. The battery was showing 80% this morning, vaping at 0.3ohm from around 38 watts, it then went down to almost 25% within a few hours, and that was not vaping constantly. I am assuming the battery is wanked or maybe there`s a fault elsewhere in the circuit causing it? Anyhow, has anybody had some experience in this so they can advise on a brand of battery I should be looking for that will fit? I am wondering if the pic of the battery that is in it is even an original, or has perhaps been replaced at some point. It was also suggested that the Lipo could be out of balance and needs checking, I`m thinking then that if that is the case it simply equates to one of the cells being shot, in which case I need a new battery. Not having a meter to test it with I`m hoping an RC shop could perhaps do that for me. I have seen how it`s done but as there are two wires soldered to the board, could it still be checked just by pulling off the white connector? Any help or advice appreciated, the red mod is mine and the blue one is from an old post, that I assume would have been an original battery.