FOXWELL BC521 2-in-1 Battery Charger & Tester, Test Before Charging 12V 5A | Test Car Battery Health, Cranking and Alternator Output, Then Use 8-Stage Charging, Pulse Repair Or Battery Maintenance

2-IN-1 BATTERY CHARGER & TESTER — Stop guessing what your battery needs. FOXWELL BC521 combines a 5A car battery charger and 12V battery tester, helping you check battery condition before charging. It also supports trickle charging, battery maintenance, and pulse repair for complete 12V lead-acid battery care. Compatible with AGM, GEL, EFB, and flooded batteries in cars, SUVs, motorcycles, ATVs, RVs, boats, and lawn equipment TEST BEFORE YOU CHARGE OR REPLACE — When your vehicle is slow to start or will not start, use the Foxwell battery tester checks CCA, voltage, internal resistance, SOH, SOC, cranking performance, and alternator output directly on the screen. Match the battery type, rating and standard to the battery label, then follow the on-screen prompts. Clear results help you decide the next step: continued use, charging and retesting, or further inspection before replacement