Originally Posted by 3dVector
I recently got a Thunder Power TP-610C-ACDC charger/discharger and every time i try to charge or discharge a battery it sends back an error message saying (voltage error or wrong polarity). I have check these things and the voltage in each cell is well above the minimum, also as you can only plug the battery in one direction so im positive it is not the polarity. It does the same thing with whatever battery I plug in even a brand new Thunder Power battery that I got at about the same time. I was hoping somebody might have had a similar problem and could tell me how they fixed it.
You are plugging on both the main leads and the balance leads? The main leads pigtail (thing that goes from the charger to the main connector on the pack) is plugged in correctly, red to red and black to black? Did you solder on your own main connector, if so is the pack is wired correctly?