Q: I wish to check the capacity of the cell in my battery pack. How to do that?
Answer: Originally there were not any suitable products in the market that would allow the quick and easy testing of individual cells or the packs in a battery. There were only some costly and professional battery testers.
However recently due to a growing share of the DIY (Do-it-Yourself) market, there are more and more ready to go products. These products are called:
Digital Battery Capacity Tester Electronic Load Intelligent Adjustable Constant Current Discharge Resistance Power Tester or Adjustable Constant Current Electronic Load Battery USB Tester DC 12V 24V Lead-acid lithium Discharge Capacity Meter
https://www.aliexpress.com/item/33002861589.html
https://www.aliexpress.com/item/32821877897.html
GWL does not resell or promote these products. Customers can review the specifications by themselves and make an order for these cell/battery testers directly at the traders who sell them.
For additional testing products, please check the information at GWL/Web.