Quote Originally Posted by ArToolMan View Post
Anyone have any ideas why my ten amp portable charger or my buddies 15 amp portable charger won't charge my batteries. Last week I used his 15 amper to charge each of my 3 batteries for ten hours each. Got to the FJ Saturday and the batteries died after 1 hour. Three new batteries. Only the second time they've been charged.
Got to be a short some where, load test em individually and find the defective one. Getting one hooked up backwards when charging will screw things up as well, I pulled that stunt earlier this year on my cranking bat.