I Have the exact same issue with my Boxer 20700 Sqounker I put in a brand new pair of Samsung 20700A in and it drained them to nothing in less than a week sitting. I was looking for a fix with this also, still have not found one. Maybe a faulty chip I am thinking of sending the Boxer and the LV Drone (because of the leaking Issue, to evolve in Ohio, They helped with a loose 510 on a Triad 250 I sent them about a year ago.