Quote Originally Posted by Haynes Forest Products View Post
how to shock the batteries back to new BULL S&^%&%&t All I did was weld the contacts to the welder
If it is a lithium battery this is possible. For some reason you can draw down a lithium battery down beyond dead, and when put on the charger it will say the battery is defective. Best remedy to this is to "jump start" that battery with a fully charged one. + to + and - to - for a few seconds. This will put enough juice in it to let the charger recognize it is a good battery. We threw away the first battery that did this not knowing what we could do. The second battery that did this we learned this trick and have had to jump it three times now in two years. $65 lesson learned.

Having all the batteries doing this at once is a little suspect though.