SECTION 7 VEHICLE STORAGE (over 6 weeks)
SU5 OWNERS MANUAL 2014
BATTERY PREPARATION
Before storage make sure batteries are fully charged, For non-sealed batteries make sure the
electrolyte is full in all cells as shown in
SECTION 4 ELECTRIC SYSTEM,
BATTERY
INSPECTION & MAINTENANCE. Clean the batteries and connections as described in
SECTION 4 ELECTRIC SYSTEM,
BATTERY CLEANING.
The charger has the capability to test and recharge batteries during storage. Leave the batteries
connected and the charger plugged into a reliable AC source.
If the on-board charger is not used the batteries will "self-
discharge” during storage and
recharging will be necessary. Table B shows the frequency for recharging.
TABLE B
STORAGE TEMPERATURE
CHARGE AT
Below 4
0
C (40
0
F)
Every 6 months
4
0
C - 16
0
C (40
0
– 60
0
F)
Every 2 months
Above 16
0
C (60
0
F)
Once a month
The voltage or specific gravity of the electrolyte should be checked every 6 to 8 weeks using a
voltmeter or hydrometer.
The batteries should be recharged to a specific gravity of approximately 1.260 sp. gr.
After charging, disconnect the batteries. See
SECTION 2 SAFETY,
BATTERY DISCONNECT
METHOD.
NOTICE:
Batteries in a low state of charge will freeze at higher temperatures than fully
charged batteries. Do not attempt to charge a battery that is frozen or if battery case is
excessively bulged. Properly dispose of battery, because frozen batteries can explode.
Table C indicates freezing points of batteries at different specific gravities.
TABLE C
SPECIFIC GRAVITY
FREEZE POINT
0
F/
0
C
1.260
-70/-57
1.230
-39/-38
1.200
-16/-26
1.117
-2/-19
1.110
+17/-8
Notice:
Specific gravity readings are at 80
0
F. Values need adjustment for electrolyte
temperature. Reduce .004 for every 10
0
F below 80
0
F. Increase by that amount for every
10
0
F above
Quarterly during storage check water levels for non-sealed batteries.
7-1
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