That’s not surprising, considering that is a “charge capacity” test, not a discharge test. NiMH charging is very inefficient during the last part of charging, and a lot of energy put into them is just wasted as heat. That’s normal with all NiMH cells. So, the charger has to put in a lot more charge capacity than the real capacity of the battery, in order to fully charge it.
A discharge test is the proper way to analyse cells, especially NiMH.
I agree. One of the reasons I took advantage of this deal and bought this charger, after waiting years to buy a new charger, is that the reviews of the Lii-500 showed it does not overcharge NiMH cells by continuously pumping current into them to make sure they are completely charged to capacity in every case. I would rather have a charger that errs on the side of not completely filling a cell than a charger that trickle-charges the cells to death to max out their charge capacity.
Got mine today. I don’t have time to plug it in and play with it, but I did check to see if my Rofis protected 21700 battery woud fit. Nope, no way.
My flat top Sofirn 21700 cells fit easily, but the protected 21700 is way too long. Bending the sliding tab won’t work because the cell is too long to fit inside the plastic housing, not just the charge slot.
I have a few chargers that will charge to 4.22 v to 4.25 v which is a little detrimental to the lifetime of the battery.So I try to check reviews and owners results before buying.
Yeah, I have one or two that go to 4.22 V, batteries immediately off the charger. But they drop quickly. Bad or not bad… I really don’t worry about it. Much higher… I might.
I usually overthink and worry about little details. If I remember the charger that would overcharge was a Miller ml106 and xtar queen ant and xtar mc1 plus.
2019-06-27 10:43
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2019-06-27 08:02
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