If you are looking at buying the KINGBOLEN BM520 Battery Tester, this video will help you, as I give a live on car demonstration and go through the different menu options. I also have a limited time discount available on the link below:
https://amzn.to/4bZOFrF
Discount code Z2DVRDDL

Overview:
Provides full battery health check.
Supports all battery types GM flat batteries, AGM spiral batteries, GEL batteries, EFB batteries, etc.
2.8 inch colour screen display
Determines the exact CCA Cold Cranking Amps
Built-in Battery Multi-Meter And Waveform Test

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