My 2 9180 packs were still going fine, since 2009. Left my saw out in the rain, the saw is ok but the battery not.
It wouldn’t charge and read 6v. I pulled the pack apart, got the bms out by using a short bit and a mini socket drive on the 2 screws. I then used a screwdriver to lever the bms out so it is all in one piece. The batteries read 19 something volts so the batteries are fine and i guess the bms is not. Any chance of fixing it or getting another? Still over $120 for a new pack here in Australian. Seems a shame to throw out a perfectly good battery.
Still pissed off that Dewalt changed the battery design. I have a few of the later tools niw and using the adaptor for them.
Another thought, what if i bypass the bms and just connect the battery wires? Catch on fire when charging??