Ampace JP40 21700 lithium battery 4000mAh

Note: I test batteries in my free time. I measure discharge curves under different loads, internal resistance, etc. However, I don't conduct long-term tests in the form of cycle tests. My conclusion from the battery test: The EVE 40P batteries are very good, and the EVE 40PL batteries are better. And the Ampace JP40 batteries? They're even better. Both in terms of voltage stability and the energy (Wh) they can deliver. Of course, the differences are very small, but within the limits of my testing capabilities, the JP40 batteries are better than the 40PL batteries. If you'd like to read the full test: https://akkutests.de/test-ampace-inr21700-jp40.html