Agree. I've flown RC planes for many years with Lipo packs. My son flys as well. He use to leave his packs fully charged because he still works and wanted them ready to fly at all times. His packs started swelling after a few dozen flights and were shot by 50 flights or so. I am retired so I charge my packs just before I am ready to fly and leave them discharged until the next flight. I started recording the charge cycles and find I am getting on average around 300-400 cycles before my packs need replacement. I fly more aggressively then my son, so I can only assume it is because he leaves his packs charged all the time. His packs also swell early on and that is always a bad sign. Swollen packs will heat up faster when flying and have much greater voltage sag during flight which is very noticeable on RC planes. Leaving packs fully charged clearly reduces battery life.
I concur.. I have a stock of LiPos for various Quads, Planes and Cars and they are all swollen and/or won't provide a full charge.
So you have independently verified that your batteries are NOT performing as they should (see section 2, page 21 of the official DJI Mini 2 user manual) and, therefore, there is either a problem with the batteries themselves or the information as provided by DJI.
GadgetGuy: I don't understand your reply to me (as above). I was simply reporting that our Mini 2 batteries, when left fully charged in the hub, do not discharge at all. They remain at 100% charge several weeks later. Knowing that this is not good for this type of battery, I thanked Ian in London for his advice. I also stated that I'm not alone in having Mini 2 batteries that are not discharging as expected. I think this has already been recognised as a glitch that some of us are experiencing.
swelling is actually a sign of the battery vending due to incorrect use or fatigue, incorrect use could be over charging, discharging and not being able to deliver the requested peaks, overall condition of the cell/cells - all indicators of failure and risk hazard
the feature of discharge is actually included in the manuals - nothing undocumented, question stands, do all batteries behave the way its documented which he challenges as per his observations and I have seen others claiming the same
a battery that doesnt behave as should and especially an electronic circuit makes me even think wider - faulty components from factory? design flaw?
**** thats really bad but happens all over Apple had a few of those and they dont use lipos
Not overblown at all.
Count me as one of them. I've placed the battery in the drone and the triple battery hub and they don't discharge as they allegedly should.
Just because you are claiming the sky is falling, doesn't make it so! You are engaging in fear mongering and grossly mischaracterizing the consequences of batteries not self discharging, as you deem they should. If you want them to self-discharge, don't leave them in the hub or in the drone. DJI states the batteries are operating as intended, as they presume batteries in the hub and the drone are intended for immediate use. Batteries not in the hub or the drone are presumed to be stored and properly enter self discharge as they describe, and as I have described, which you continue to misstate. Good luck with your alarmist, misleading You Tube channel!
It is one thing to point out and share that batteries left in the drone and in the hub do not auto-discharge. That, in and of itself is useful information. However, it is quite another matter to then claim that it will lead to crashes and that the sky is falling! That is fear-mongering click bait, which has everyone irrationally pulling their batteries out of their hubs and their drones, for fear of fires and resulting crashes! DJI has responded and says the batteries are working as intended. If you want them to discharge, don't leave them in the drone or the hub, where they are presumed to be ready for immediate use. You may disagree with their intent, but it is their design.
I was only pointing out that despite their not following the "expected" discharge algorithm when left in the hub or the drone, the batteries clearly still do discharge over time, like any other Lipo, and so they will never remain at 100% for more than a few days, and will continue to lose 1-2% charge per day, over time, and will still need to be recharged when they fall below 50% for optimal battery life. Again, the useful information is that if you don't want them immediately discharging, leave them in the hub or the drone. If you do, don't. Everything else about this leading to crashes and battery destruction is wild nonsense!
The one thing you seem to not acknowledge is that MANY/MOST M2 owners batteries do NOT discharge to storage voltage in or out of the M2 or hub as intended/designed/described.
