Post #1178823

Yes you need a specific battery tester. Here is a Video explaining how to test batteries: [How to Properly Test New and Used Li-Ion Batteries (Including Cool Testers)](https://youtu.be/Dwpb5N0Ov5w)(15:12) by Andreas Spiess At 6:14 he recommends a few testers. The more expensive ones list connection options via cable and Bluetooth.