Instructions 2. Use only as intended. 3. Be sure vent caps are tight and level. Place damp cloth over any vent caps on both batteries. Handle cloth carefully - do not allow cloth to come in contact with eyes, skin or clothing. 4. Do not allow red and black cable clamps to touch each other or same metal object during use. 5. Be sure vehicles do not touch and both electrical systems are off and the same voltage. 6. Be careful to avoid moving fan blades. 7. Check polarity of battery posts.
Testing Battery/Alternator CABLE CONNECTION POSITIVE GROUND SYSTEM Booster Battery _ 1 _ + 3 + 2 4 Discharged Battery Battery Ground Cable Inline Tester To Engine Block 1. Connect negative (−) cable to negative (−) terminal of discharged battery wired to starter or solenoid. 2. Connect other end of negative cable to negative terminal of booster battery. 3. Connect second cable (positive) to other terminal (positive) of booster battery. 4.
INLINE TESTER ALTERNATOR ® INLINE TESTER INDICATORS Battery - GREEN lights up if fully charged. Battery - YELLOW lights up if battery is in good condition. Battery - RED lights up if battery is low. Reverse - RED lights up when cable is not connected properly. BATTERY Alternator - RED lights up if working correctly. HIGH GOOD LOW CLAMPS REVERSED Limited 90 Day Warranty Harbor Freight Tools Co.