I was charging a couple of lipo's and got a error on them.

vol select err

They are used batterys and I wanted to check them out .

sticks

It's rather hard to respond to this without knowing whether you have a charger with balance taps or not. It may depend on the specific charger and most of the errors are toward the end of the manual with a tiny explanation of what the error means. I'm guessing that most charger manuals I read are telling you that there's a discrepancy between the set number of cells and what is measured by charger. This can be result of one or more cells being out of voltage spec , connection , wrong balance board, ect. I supose it could also be the battery itself or the charger itself too.

Maybe you can eliminate the charger and check the batts by themselves or eliminate the batts and check out the charger itself?

this normally means that the number of cells set for charging doesn't match what the charger is reading. bottom line.... bad batteries. don't mess with them, forcing can cause a fire.

I got it, they were not marked and they are 4000Mah. I thought they were 4 cell , but they are only 3 cell.

The voltage level was high enough to start as a 4 cell and then the error came it.

My bad, I marked them now

thanks

sticks

Thank you to charger for saving a fire hazard , right? Which charger was it?

it is the imax b6ac dual power charger

Its great little charger and only about $39, I have two of them and wish I had one more.

sticks