Instructions for Jumpstarting an Engine
WARNING – BATTERIES PRODUCE EXPLOSIVE GASES.
NOTE: consult automobile owner's manual and follow all instructions.
SHIELD EYES AND FACE FROM BATTERIES AT ALL TIMES. 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. BE SURE VEHICLES DO
NOT TOUCH AND BOTH ELECTRICAL SYSTEMS ARE OFF AND THE SAME VOLTAGE.
Be careful to avoid moving fan blades.
Check polarity of battery posts. POSITIVE (POS, P, +) battery post usually has larger diameter than
NEGATIVE (NEG, N, -) post.
Determine which post of battery is grounded (connected) to the chassis. If negative post is grounded,
connect clamps in order shown in top diagram and as described for connecting clamps with a grounded
negative post. If positive post is grounded, connect clamps in order shown in bottom diagram and as
described for connecting clamps with a grounded positive post.
If negative post is grounded:
1)
Connect positive (+) cable to positive (+) terminal of discharged battery wired to starter
or solenoid.
2)
Connect other end of positive cable to the positive terminal of the booster battery.
3)
Connect second cable (negative) to the other terminal (negative) of booster battery.
4)
MAKE FINAL CONNECTION ON ENGINE BLOCK OF STALLED VEHICLE (NOT NEGATIVE
POST) AWAY FROM THE BATTERY AND STAND BACK.
If positive post is grounded:
1)
Connect negative (-) cable to negative (-) terminal of discharged battery wired to starter
or solenoid.
2)
Connect other end of negative cable to the negative terminal of the booster battery.
3)
Connect second cable (positive) to the other terminal (positive) of booster battery.
4)
MAKE FINAL CONNECTION ON ENGINE BLOCK OF STALLED VEHICLE (NOT POSITIVE
POST) AWAY FROM THE BATTERY AND STAND BACK.