Steve Clardy
04-10-2003, 12:25 PM
I have all Porter Cable Cordless drills, the older 862 12 volt models. I have a couple of batteries that got to where they would not charge and the charger indicated that they were shorted out.
As these are $50.00 each to replace, I laid them back for a while before considering throwing them out. The other day I picked one of them up, getting ready to trash can it. Curiosity got the better of me, and I took one of them apart. You need a small torx bit to remove the cover. When I slide the batteries out, there was a metal clip on the bottom of them that attached 1 battery to another. There are multiple batteries in these. It was not attached, and could see where it had arced across. Looks like these battery straps are spot welded together.
Beings I have no small spot welder, or did not want to solder them as I do not know what would happen if they were heated up, I took a couple of pieces of sandpaper to put a little pressure there to keep the strap tight and laid them it the bottom of the case where this strap sits. I reattached the cover, and tried charging them. They came up full charge and are still working.
I don't know if the newer model batteries are constructed this way, but if you have one of these batteries gone bad, it may pay to see if you have this same problem with yours before you throw it out.
Steve
As these are $50.00 each to replace, I laid them back for a while before considering throwing them out. The other day I picked one of them up, getting ready to trash can it. Curiosity got the better of me, and I took one of them apart. You need a small torx bit to remove the cover. When I slide the batteries out, there was a metal clip on the bottom of them that attached 1 battery to another. There are multiple batteries in these. It was not attached, and could see where it had arced across. Looks like these battery straps are spot welded together.
Beings I have no small spot welder, or did not want to solder them as I do not know what would happen if they were heated up, I took a couple of pieces of sandpaper to put a little pressure there to keep the strap tight and laid them it the bottom of the case where this strap sits. I reattached the cover, and tried charging them. They came up full charge and are still working.
I don't know if the newer model batteries are constructed this way, but if you have one of these batteries gone bad, it may pay to see if you have this same problem with yours before you throw it out.
Steve