Hi Nick, yes a good question. Its a tin of paste which I have been using since about 1965, no kidding. Its called "Fluxite Soldering Paste" and its tends to, well, last.
If you were caught using it anywhere I've worked you'd get yer arse kicked!
Thanks Ian -- I'll compare the current for the wrapped 3 against the current load of 1 battery and check that the two numbers relate roughly as expectedRoy -- I was worrying the same thing and will charge cautiously by the back door, not under the end of some curtains and then forget about them and go out to the shops, as I heard happen to someone in a very unfortunate story.They are in parallel and yes I'm sold on the idea of a proper battery box, this is intended for use in a duo battery box.Please be gracious and don't point out the cost of a 2nd hand duo + custom duo insert + the cost of batteries and wrap etc etc, the time spent bodging it with soldering irons and swearing in my kitchen, fire hazard all added up --> then compare that to the cost of having just gone and bought a Dragon EX in the first place, because if you did might be right, but it wouldn't make me happy. I suppose I got an educational experience from it?
Purely in a spirit of inquiry, do you have a BMS in there somewhere, or are those protected cells (ie it's inside)? If they are protected cells, you have put a lot of heat on the board. Might be worth checking they turn off by 2.5V (hard to check the 4.2V because the charger will do it).
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