Maha C9000 mAh "charge in" increases from slot #1 to #4

[Turbo DV8]

One of my four C9000's seems to do this regularly. If I take four depleted (but well-matched) cells out of a device and charge them, the final "charge in" for each cell increases with each slot. That is, slot #1 will have the lowest, followed by increasing values until slot #4, which is the highest. If I deplete the four cells again, and purposely place them in a different order (even opposite of the first run) the final "charge in" still reads lowest in slot #1, and increases with each subsequent bay. Random probability would dictate if I put cells in randomly, on average the charges should be, well, pretty random. But I really began to suspect when I reversed the order of the cells and got the same increasing results from slot to slot. My run # on the label on the back says OJOCA. I have four of these chargers, so I've sort of avoided this one charger because of this, since I have three others, but now I would like to see if anybody else experienced this.

 

[ChrisGarrett]

One of my four C9000's seems to do this regularly. If I take four depleted (but well-matched) cells out of a device and charge them, the final "charge in" for each cell increases with each slot. That is, slot #1 will have the lowest, followed by increasing values until slot #4, which is the highest. If I deplete the four cells again, and purposely place them in a different order (even opposite of the first run) the final "charge in" still reads lowest in slot #1, and increases with each subsequent bay. Random probability would dictate if I put cells in randomly, on average the charges should be, well, pretty random. But I really began to suspect when I reversed the order of the cells and got the same increasing results from slot to slot. My run # on the label on the back says OJOCA. I have four of these chargers, so I've sort of avoided this one charger because of this, since I have three others, but now I would like to see if anybody else experienced this.

Mine is OKOEA, bought 1/12 and I used to think there was something up with different numbers coming out of the 4 bays, being skewed, but then I'd charge a set up and bay 4 was higher. No real rhyme or reason, but yeah, it seems to be a quirk, one would charge up higher than the others, 'most' of the time, but not always.

How much are we talking about? A few mAh, or in the triple digits? I'm a target shoot and reload my own ammo. I use a chronograph to measure velocity in FPS. It amazes me when some guys report their strings on their chronos and for 10 shots, 7 of them are the exact same number. There are variables in these batteries, so I would think you're going to get a variation, but it should even out over the four bays, which you say it doesn't?

It seems that there's a thread on this page talking about bays 1 and 4 being tied together, or just being outboard, where the cells don't heat up as much as bays 2 and 3. Warmer cells don't take charges as efficiently, it seems, however, one should see bays 1 and 4 being higher, not just 1.

Chris