Battery: Description and Operation

Battery System Components, Part 1:

Battery System Components, Part 2:

Primary

WARNING:
^ BATTERIES NORMALLY PRODUCE EXPLOSIVE GASES WHICH CAN CAUSE PERSONAL INJURY. THEREFORE, DO NOT ALLOW FLAMES, SPARKS OR LIGHTED SUBSTANCES TO COME NEAR THE BATTERY. WHEN CHARGING OR WORKING NEAR A BATTERY, ALWAYS SHIELD YOUR FACE AND PROTECT YOUR EYES. ALWAYS PROVIDE VENTILATION.
^ WHEN LIFTING A BATTERY, EXCESSIVE PRESSURE ON THE END WALLS COULD CAUSE ACID TO SPEW THROUGH THE VENT CAPS, RESULTING IN PERSONAL INJURY. LIFT WITH A BATTERY CARRIER OR WITH YOUR HANDS ON OPPOSITE CORNERS.
^ KEEP OUT OF REACH OF CHILDREN. BATTERIES CONTAIN SULFURIC ACID. AVOID CONTACT WITH SKIN, EYES OR CLOTHING. ALSO, SHIELD YOUR EYES WHEN WORKING NEAR THE BATTERY TO PROTECT AGAINST POSSIBLE SPLASHING OF THE ACID SOLUTION. IN CASE OF ACID CONTACT WITH THE SKIN OR EYES, FLUSH IMMEDIATELY WITH WATER FOR A MINIMUM OF 15 MINUTES AND GET PROMPT MEDICAL ATTENTION. IF ACID IS SWALLOWED, CALL A PHYSICIAN IMMEDIATELY.

Primary Battery Cable Configuration:

All gasoline engine Econoline vehicles are equipped with a 78 ampere-hour, maintenance-free primary battery, mounted in the forward right-hand side of the engine compartment. A gasoline engine vehicle with only a primary battery has the electrical configuration as shown in the illustration.

Primary And Auxiliary Battery Configuration:

Auxiliary
The auxiliary battery option includes a 78 ampere-hour primary battery. A remotely packaged auxiliary 75 ampere-hour, serviceable, deep cycle battery is an option for all gasoline engine Econoline vehicles. The auxiliary battery is located on the right-hand frame rail to the rear of the B-pillar. The auxiliary battery is used to supply the trailer circuits with power when the vehicle is not running. The auxiliary battery is connected in parallel with the primary battery through the auxiliary battery relay when the engine is running. A gasoline vehicle with the auxiliary battery uses the same primary cable as gasoline vehicles with only the primary battery, and has the electrical configuration as shown in the illustration.