(… except, of course, the super expensive skyrc mc3000)
Having much more cells than I regularly use, I often set them at storage voltage of 3.8V.
A hobby charger does the job, but not well.
It seems not a single analyzing charger, despite being capable of discharging, has a storage mode.
Did I overlook any? Thx for helping me out!
HQ
Charge LiFe gives a nice storage voltage
I considered LiFePo as a workaround, it just has 2 downsides.
It does not work for all li-ion chemistries, as LiCoO2 is virtually depleted at 3.6v resting, just slightly better at 3.65.
And it only works in 1 direction - charging - so I need to discharge every other cell first.
This is strange, so many analyzing chargers out there lately, opus, xtar, nitecore, but seemingly none with a storage mode.
I agree, I want the storage mode as well, I looked around, nothing that I saw. Not budget friendly at least
Unless you store your unused batteries for years before using them again, there shouldnt be too noticeable degradation of capacity.
At least my NCR18650B’s are still good after years of storing them fully charged and only later learning about somewhat better lithium battery storage techniques.
Well, according to battery university there is a significant difference of capacity loss (16) after 1 year, when comparing storage at 100 and 40% charge. At higher temperatures than 25° it’s even worse.
These are estimates, as it depends on cell chemistry and separator used. But if you want to get as much from your cells as possible, and I surely do, storing at ~40% is the way to go.
I know the theory, just talking from practical experience with bunch of Panasonic’s 