My unit charge good and I really like the digital readout. However when I tried to discharge some batteries it ran them down below two votes. I thought I must have set it wrong, so I tried it again. I got busy and forgot about watching it I went back about 4 hours later it was down to 1.75 votes per cell. It was discharging very very slow. This was happening on station number 3. I tried to plug it into my computer to upgrade it and it kept giving me an error message of low voltage. Couldn't figure out how to make it work. So I returned it to Walmart where I ordered it from. However I like the charger so much I ordered another one just like it from the same people who supplied this one to me. It got lost in UPS shipping but supposed to come tomorrow. The unit is so small you will need to order some charging boards so that you have enough room to plug in the balance wires. Some of my batteries have short balance wires and the heavy charging wires push the batteries away from the charger and unplugged the balance wires every time I tried to use it
