Double check that, but keep in mind people have Sanyo cells, as well as every other brand. according to battery university ideal storage is at about 40%.
I use HKJ comparator, and see that you have about 1/3 of mAh left with Sanyo GA at 3.6V, at reduced voltage of course. A lot has changed in five years time, such as chemichal composition of Li-ion, and I do wonder to what extent these rules of thumb from back then are valid. I wouldn’t be surprised if things have changed a bit.
Let me give you an example. I’ve heard often that self discharge of Li-ion is 1 year. I’ve experienced a couple of times from charging old cells that I haven’t touched a couple of years that they still had a decent voltage; I was really like wut?
I’ve seen the figure 40% in lots of other places too.
So instead of basing it upon a voltage figure, wouldn’t it be better to discharge 60% of the measured capacity?
I agree, with every battery being different you need to go by the battery your storing. This means a charger that allows a storage voltage would need to be adjustable
Self discharge in healthy cells is negligible unless its connected to a device with an electronic switch/circuitry or is a protected cell which has built in circuitry.
Thats the basic idea, or charge to 40% if the battery is already drained
THANKS FOR THE REVIEW HKJ!
Thanks everyone for ALL your input. the more I read this the LESS I want this charger!
-No Voltage read out
-No current readout
- From what I see only displays 2 channels at a time on the LCD screen, 1 & 4 OR 2 & 3! WHY not 4, unless I am missing something. I have yet to see a photo of ALL Four bays displayed w/ info.
-Of course the price!
-$69 was the cheapest I saw it on Fast Tech w/ BLF code [USA Power supply version]
-Ordering from China not something I have done too much. I much prefer the customer service in my country,no worries!
Those are more than enough reasons for me! 