4 pcs IMREN 3.7V 3500mAh 30AMP Battery Comes with Energic Battery Organizer

hello youtubers this time after states only vtc for a hydronium ion battery of 18 650 size which supports the charge current up to 40 amps my testing equipment supports this charge current up to 20 amps that's why I'm going to test it at 5 10 15 and 20 amps but first let's take a look at my testing method and my equipment all the tests were done using a special battery tester the zkd take ABC a 20 which supports 4 wire measurement discharge current up to 20 amps and it can be connected to a PC for building graphs I've also used version 2.5 of my homemade battery holder it holds a battery like this or like this I've followed all the prescriptions of the IEC 61 960 standard concerning battery's capacity measurement the air temperature was 2025 70 degrees and before each discharging cycle a battery was charged at each standard charging current mentioned in its datasheet and after that it w