UPDATE:


The battery tested was a Vapcell INR26650 5500mAh 3.7 Volt cell. Same testing procedure, a 250mA load over time to draw the cell voltage down to 3 Volts to determine mAh.





I was skeptical about the 5500mAh rating but they were highly rated by other testing sites. Four cells were tested. All tested above the advertised 5500mAh rating with an average of 5662mAh. I'm impressed. They also make many other sizes of lithium ion batteries and I will be ordering and testing some 18650 cells from them.


Two of these in a camera trap should be able to fill a 128gb memory card with images or video.