I have a newly failed Hana V200. I suspect that I have a bad lipo cell. The mod flashes the message "IMBALANCED BATTERY" on every puff. Escribe Device Monitor shows "Cell 1" voltage dropping sharply to 3.09v on every puff. The other 2 cells only drop to approximately 4.1v, and remain consistent with one another. Cells 2 and 3 then take a few minutes to charge back to 4.2v, while Cell 1 takes multiple hours to get back to 4.2v. After another puff, the same cycle repeats. The mod will not fire above any wattage that draws Cell 1 to 3.09v. The "IMBALANCED BATTERY" screen flashes and the wattage drops sharply. Currently unable to get the mod to fire above 50W, and it won't maintain even that for more than a second. I've emailed Hana (twice now) with no response. I'm sure they're swamped, since this thing took about a full day of normal use before it failed. Starting to consider cracking the thing open and taking on the repair process myself. I have a feeling I'll be happier with the result - as opposed to sending it back, waiting multiple weeks, and getting it back in a similar state that it shipped in. Anyone know which lipo Hana used in these? Or, which lipo would fit? I'm preparing myself for the possibility that I'll be soldering on some new battery connectors at the very least.