The batteries are an excellent product, the only issue I had was they did not fit the FeiyuTech G6 Gimbal as I originally bought them for as they are just a bit longer than the one supplied with this device (about 1.5 mm longer) I have however been able to use them else where successfully and they are working great. I believe that the Chinese manufacturers don't have quality control and their supplied batteries are not of a standard size and if it fails you cannot get a proper replacement not even from them?
About the product:
They charged up quickly considering the type of battery supplied most impressed with this, they also have a fairly long discharge rate as well exactly perfect for the use to which I have put them, thanks!!
1 of the 4 26650 Batteries that I ordered has gone faulty. I have examined the battery and there doesn't appear to be any outside defects. The other 3 26650 batteries are working perfectly.It's a shame about that. Other than that you are an Excellent Company to deal with . Actually I intent on making another order of 4 x 26650 Batteries next week. You'll see my order will be placed within the next 7 days. Please do not be discouraged by this comment as this is probably a 1 in a million fault from the Production Line and happens to the best of any Company in the World .