I turned off and charged my Dekunu two days ago. Got to the DZ this morning and the unit is completely drained. So now, once again, I have no Altimeter because this POS is unreliable.
Can you please fix the $(&-$-# battery issues? Please stop adding or working on features nobody asks for and fix the battery drain.
I had the opposite experience todayā¦ thought to myself āshit, I forgot to check my altimeter and itās been sitting in my cold car for three weeks!āā¦ plugged it in to make sure and it was still at 100%! Iāve had battery issues with mine but the biggest solution/ weirdest solution that Dekunu told me to do was to be sure that Iām charging it with the Dekunu cable or at a very minimum a quality mini USB cable and not some cheap charger, donāt know if that helps you or not, but perform a hard reset and charge with your Dekunu branded cable and test it out a few times this week and see what itās battery life is like
Battery life isnāt the issue. The issue is that I charged it to 100%, turned it off, unplugged it and put it in my kit, and two days later itās dead.
It doesnāt happen all the time, but it does happen sometimes. Itās always been like this and Iām not the only one.
That said, itās not a matter of a cable or battery life. Itās a matter of the unit discharging itself while itās turned off. Not only does this make it dangerous, because now you donāt have an altimeter, but it also damages the battery, further making the device dangerous. A device as important as an altimeter should at least do the basic job is designed for, which includes having a reliable battery, which it does not.
Same thing been happening to me for the last few weeks. I charge battery to 100% and a couple days later Iām turning it back on to find the battery life is less than 30% with no usage.
Like I said at the end, try doing a hard reset on your altimeter, and then do a couple days of testing to see if anything has changed
All working as normal after your advise. Many thanks 
No problem, Mike, I love my Dekunu, but we have to remember, as a community of users, these are still very new and the company is working very hard to make improvements to its safety and reliabilityā¦ all of our bugs and comments are used to make this thing better and betterā¦ the Alti-2 probably went through just as much testing and debugging and it isnāt even half the altimeter the Dekunu is!
Love mine too. Thanks for the feedback. Stay safe and happy jumping this season.