I bought two of these to try as replacement cells for my Sony Aibo ERS-311 robot dog. They initially had some issues (I think it was the fact the battery board detected a sudden whoosh of power compared to the dead one in it before!), but once it had calibrated itself it ran my Aibo for 2 hours and 35 minutes! I will most definitely be getting some more if they turn out to be reliable.

I was dubious when I contacted 18650 looking for recommendations and they pointed me to these but I have to say they are great, I've been using them in my mod for a little over a week and they last absolutely ages.

I usually stick with "Branded batteries" but decided to try these and I have to say I'm glad I did!! I initially bought them to use them in my E-cig and they work/charge well and just last ages, I have also now tried them in my NIGHT VISION sight on my rifle and again they are very impressive both in my IR illuminator and in the sight itself!! Great product and fantastic performance all for a low price, I will definitely be buying more!!!