FOXWELL NT604Pro 2-in-1 OBD2 Scanner & Battery Tester, 4-Systems, 3 Resets | NT604 Upgrade: ABS/SRS/Engine/Transmission Diagnostic Tool, Adds Oil/BMS/TPS Service + 12V Battery/Cranking/Charging Test

[NT604 UPGRADE: 4-SYSTEM SCANNER + 12V BATTERY TESTER + 3 SERVICE FUNCTIONS] – Built on the FOXWELL NT604 car scanner, NT604Pro OBD2 scanner keeps 4-system diagnostics and full OBDII functions, then adds dedicated 12V battery, cranking and charging tests plus 3 practical service functions. Check warning lights, investigate hard-start problems and complete common post-maintenance procedures with one car diagnostic tool [HARD START? TEST BEFORE REPLACING PARTS] – A hard start doesn’t always mean a dead battery. The built-in car battery tester walks you through a 3-step diagnostic sequence: Battery Test (SOH, CCA, SOC, internal resistance) → Cranking Test (cranking voltage & time) → Charging Test (alternator output & ripple detection). This battery and alternator tester can instantly identify whether the problem is your battery, starter, or alternator – no more guesswork or unnecessary replacements