radellaf
Flashlight Enthusiast
IMG_2498.JPG
Terminates at 4.23V and around 100mA to rest at 4.21-4.22 and -200uA. (-100uA on the 3mA range)
The termination could be lower, though the meter is uncalibrated so it may be a little better or worse, and is in any case reasonable.
What I'm very happy about is that it stops at a good current (C/20 for 2000mAh), and really truly stops. Notice that 0.2mA is negative (discharging).
Maybe I won't bother making it a cradle for a hobby charger or one of these "3P10-L1004 Smart Li-ion Battery Charger":
http://www.batteryjunction.com/li-smart-charger.html
http://www.batteryspace.com/smartcharger18afor37vli-ionpolymerrechargeablebatterypack--ullisted.aspx
I started with a 80%+ charged cell, so haven't checked the maximum charge current. Should be 900mA. I'll test, but my setup may have enough resistance to be a problem.
And, yes, kind of ironic that my candle making hobby (upper left) is on craftserver.com whereas this forum has "Candle" in the name. I often think incandescents are far too modern a technology, then the next day use a 18650 powered SSC-50. <shrug>
Some photos of the PCB:
There was a loose flake of solder on the resistor near C8 that I brushed off. So, there's your Chinese QC. If you buy one, might want to inspect the PCB for soldering problems. The joints here seem good enough, but I'm glad that flake is gone as it could have shorted something out in the future.
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