SECTION 4 ELECTRIC SYSTEM
SU5 OWNERS MANUAL 2014
4. Do not overfill batteries. Electrolyte expands and can overflow during charging. Water added
to replace the spillage dilutes the electrolyte and reduces its specific gravity.
5. Use only distilled water. Vehicle batteries may use up to 16 quarts of water during their
useful life and non-distilled water may contain harmful minerals which will have a cumulative
adverse effect on battery performance and life.
6. Check to see that battery cap vent holes are clear. Plugged vent holes will not permit gas to
escape from the cell and could result in battery damage. Check that all vent caps are tightly
in place. Do not allow water or cleaning solution to enter cap vent holes.
For all batteries:
1. Be sure battery hold downs are properly tightened. A loose hold down may allow the
battery to become damaged from vibration or jarring. A hold down that is too tight
may buckle or crack the battery case.
2. Weekly inspect battery posts, clamps and cables for breakage, loose connections
and corrosion. Replace any that are damaged. Batteries and connections must be
clean and dry. Torque connections to 100 in. lbs.
3. Weekly an equalization charge is to be applied to the battery pack. This process
balances the electrical charge in the battery pack and will extend battery life. The
following procedure is used to complete this.
Charge the battery pack allowing the charger to go to green 100% charge.
Once the green LED lights unplug the power cord.
Wait approximately 30 seconds. Reconnect the power cord and allow the charger to
complete a second charge cycle.
If the vehicle is not to be used, leave power cord connected. The on-board charger
can test and recharge as needed.
BATTERY CLEANING
Acid-soaked debris on the battery terminal connections will cause current leakage, reduces
battery efficiency, and battery life.
Hose wash battery terminal connections periodically with clean low-pressure water to keep them
free of acid spillage, dirt, and other debris. Do not hose wash electronic controllers, switches,
solenoids and other electrical control devices. Cover as necessary to prevent splashing. Clean
battery terminal connections with baking soda (sodium bicarbonate) and water solution. Mix 5
teaspoons baking soda per quart of water. Use a stiff bristle brush, rinse with clean water and
dry with a clean cloth. Torque connections to 100 in. lbs
NOTICE:
Follow local ordinances and codes for proper disposal of battery cleaning
waste.
CONDITIONS WHICH AFFECT CHARGING
Always schedule enough charging time so the charger attains the 100% level. Charging time is
affected by age and battery condition, state of discharge, electrolyte temperature, AC line
voltage, and other variables. Correct charging methods extend battery life and vehicle range
between charges. If vehicle is used only occasionally, a refresher charge should be given prior
to using.
New batteries need up to four hours more charging than “mature” batteries. Before the first use,
completely charge new batteries. Charging time will vary based on conditions noted above but
will probably be 12 hours.
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