Ok I have had this charger go about 2 years barely been used i mostly use my hitec x2 charger I took it to the track and noticed all my batteries on cell 1 are about .10 higher than cell 2 on all 5 of my batteries. And on my x2 they are all fairly close. I tried different balance boards and no luck. Is there a possibility that it came un-calibrated? Is there anyway I calibrate? There is nothing in the manual and I can't find anything online. Charger is still in perfect shape I would hate to junk it

Help!

Even does the same thing on my LiFepo tx pack

No one has had a 1220 take a crap?!

If you dont have a multi meter take the batts to a hobby store and see what their charger says.

Or buy a lipo checker. Several companies make one. Hitec and futaba and a few others. Hitec sells for about $20

If a tester or other chargers are not showing the same results as the charger in question junk it. It will ruin good batteries which as you know cost a lot more than that charger