Originally Posted by
humble dave
Does anyone know if Batteries Plus or some other place can test the lithium ion battery pack for my e-bike? I know most all parts stores can test car batteries real quick. I would like to know if I have usable ah left.
One option is to do this yourself. You will need a simple inexpensive
Watt Meter and a resistance load (kettles, toasters, etc.). The procedure is:
1. Fully charge the pack
2. Connect the input side of the watt meter to the discharge port of the battery
3. Connect the load to the output side of the watt meter
4. Let it run till the battery BMS shuts things down and see how many Ah have been used.
The results will be more meaningful if you can find a load that will generate a meaningful discharge current (10 amps or so)