Product Name : SANYO Lithium-ion Rechargeable Battery
Model : SANYO MB5M40
Norminal Capacity : 2600mAh
Diameter : 18.22mm
Height : 69.21mm
Weight(Typical) : 1.6OZ
Charge Method: Constant Current and Constant Voltage(4.2V)
Nominal Voltage : 3.7 V
Max. Charge Current : 1CmA(2600mA)
Max. Disharge Current : 2CmA(5200mA)
Discharge Temperature : -20°C ~ +60°C
Energy Density : 565Wh/I, 215Wh/kg
Charging Time : 3hrs(Standard) or 2.5hrs(Rapid)
MADE IN JAPAN
This battery has a very solid build, the disadvantage of this build is the length of the battery.
The button top is high and larger in diameter than normal button tops.
The battery has a clear outer wrapper.
Conclusion
This battery uses a very good cell, but does not fit in all equipment due to the length.
I will rate this battery very good, with the exception of the length.
Hey HKJ, are you sure that’s a 2600mAh cell?
Judging by color (orange), it looks like 2800mAh (4.3V) Sanyo UR18650ZTA. Maybe you could check label on shrink wrapper of cell itself?
I’m afraid you would have to remove outer clear wrapping in order to do that, though.
Damn, you were right. :( I know they aren't part of it, I just guessed they all got the protection circuit applied in the same place so all UR18650ZT would have the same ones. But I was wrong.
I do not include a direct link, but there is a web address in the info box.
It looks like they have changed the description and also the protection, since I bought the battery. Now it says 2800 mAh, but it forgets to say 4.3 volt.
HKJ, is there some reason why Sanyo batteries always measure less in your tests than others? I.e. Sanyo 2600mAh measures just 2300-2400mAh, while for others (me included) they consistently measure 2500mAh+ (as they should, according to datasheet).
All others (Panasonic, LG etc) seem to measure much closer to other people’s tests.
Generally I split my batteries between two test stations, one for 2800+ batteries and the other for anything less. There might be systematic differences between the two test station, like different charge voltage and different calibration, but this is not supposed to be a very big difference.
Also note that I uses 0.1 A as termination current when charging, some chargers might use other termination currents.
So, 11 bucks for 2? Man, these are the lowest prices I’ve ever seen! IOS sells FM Sanyos for more than $17.
And you have a pair of protected NCR18650A for less than $16! Fasttech, where have you been all this time :bigsmile:
HKJ, Now that I have some of Sanyo 2800 protected from FastTech in the post I would like to see a test of them at full capacity. Also I would like to know how much better the unprotected battery are. Would you consider that?
Godt nytår!