I got my adapter from Geko and hooked it up to my new IMAX B6AC v2 charger. Set it to balanced LiPo and it charged the H battery at 1C . 90 minutes later the charger was cycling between 16.79v and 16.80v. Didn't seem like it was going to shut off so I just stopped the charging. I'm new to all this but it seemed to me it should have finished before and hour and half otherwise I'm not doing much better than the stock charger.