Well , been meaning to play with the 10440 for a long time , and havent finished as yet . as the results are here and there ...
Charging and discharging @ 300mAh
The cell chosen originally discharged for a capacity of 200mAh , so charging and discharging @ 300mAh = 1.5C , Discharged to 3v and charged to 4.2v
1st Discharge = 200mAh
2nd Discharge = 235mAh [ Capacity increased ]
3rd Discharge = 221mAh
4th Discharge = 215mAh
5th Discharge = 181mAh
6th Discharge = 169mAh
7th Discharge = 166mAh
8th Discharge = 161mAh
9th Discharge = 175mAh
10th Discharge = 161mAh
11th Discharge = 161mAh
12th Discharge = 167mAh
Wow ! its a nice downhill slide there for capacity @ 1.5C
Next I decided to back of the charge rate to 100mAh , and the Discharge to 200mAh and see what happened ..
1st Discharge = 187mAh
2nd Discharge = 202mAh
3rd Discharge = 195mAh
Just thought id post this while its fresh in my mind [ other things to worry about ] , I will keep charging and discharging as time permits , but the slowing down the charge and discharge rates will increase the time it takes ..
But I will continue charging @ 100mAh and discharging @ 200mAh to see where that goes , and then maybe do 100/100
What was the purpose = First to get some idea of 10440 behaviour and tolerance to charge / discharge rates [ anyone document this before ? ] To find out what if any charge rate is good or bad for the little 10440 , everyone + myself seems to quote 300mAh , wow , might have to be lower than that ... estimate .
And whether capacity is affected by charge rates / discharge rates ... and by how much .. [ more testing needed ] I thought 300mAh was a good place to start ...
So far 100mAh looks good for the charge rate , after I do some 100/100 , I will keep the 100mAh charge rate and increase the discharge rate ..