Decent price for a 12v Battery Tester
From Listing: TOPDON BT100 automotive battery analyzer can run tests on 12V lead-acid batteries including regular flooded, AGM flat plate, AGM spiral, GEL and EFB batteries with a much wider test range (100-2000 CCA). Cover 10 major rating standards – CCA, BCI, CA, MCA, JIS, DIN, IEC, EN, SAE, GB.
Nice….getting low power errors recently after a dead battery from leaving the car sat while away for a couple of months - have an injury so can't take the battery off to charge fully but I wanted to test it to see if it's failing as even after a good 20-30mins run it's still throwing errors. I want to know if I need another battery so hoping this will do the trick!