I just received an old eBike from my uncle but it seems the battery is already pretty bad. But I wanted to know exactly what was going on…

so I needed to buy not only for that eBike battery, but a lot more of my batteries a digital load meter for exact measurement.

Man I love Banggood, it is like electronics shopping haven for me.

I decided to buy the East Tester ET5410, up to 400Watts load to heat my room 😀 Connect your load and let discharge it will plot the whole discharging graph.