© December 2007
9-12
Section 9 - Batteries and Battery Charger
2007 Eagle Electric Golf Car Service Manual
STORING BATTERIES
•
Batteries can remain in vehicle.
•
Batteries should be fully charged.
•
Clean battery tops and connections.
•
Fully charged batteries should be stored in as cold of an en-
vironment as possible. Batteries “self discharge” when not
in use. The colder the temperature, the slower batteries self
discharge.
CAUTION
Batteries in low state of charge (low specifi c gravity readings)
will freeze at higher temperatures than those fully charged.
Check specifi c gravity periodically, and recharge batteries as nec-
essary. Batteries stored in temperatures above 80ºF (26ºC), will
discharge faster and require recharge every few weeks. Batteries
stored at or below 0ºF (-12ºC) may not require recharge for pe-
riods up to 4 months. When recharging, bring batteries to 1.250-
1.270 specifi c gravity to prevent freezing. See Table 8-8.
As ice forms in a freezing battery, the electrolyte expands and can
crack the case, ruining the battery. If a battery is allowed to stand
or is operated in a discharged condition for a long period of time,
lead sulfate may develop on the plates, which is dense, hard and
crystalline, and which cannot be electrochemically converted to
normal active material again.
Lead sulfate formed on the plates during discharge is relatively
insoluble as long as the specifi c gravity of electrolyte is kept above
1.125 specifi c gravity, but if allowed to drop below this value, the
lead sulfate becomes increasingly soluble and may migrate into
the pores of the separators and deposit as a white crystalline
mass.
Subsequent charging may convert these deposits into stringy
metallic lead which may short the positive and negative plates
through the areas affected. These small shorts may cause a con-
dition of low cell voltage when battery is allowed to stand idle in
less than 25% charged condition.
REPLACING BATTERIES
Removing Batteries
1. Remove nuts, washers and cables, positive lead and nega-
tive lead interconnecting batteries. See Figure 9-9.
2. Remove nuts, fl at washers, hold down plates and rods. See
Figure 9-10.
3. Remove batteries.
Installing Batteries
1. Install batteries.
2. Install rods and hold down plates)\.
3. Install fl at washers, nylock nuts.
BATTERY CHARGER
Removal
NOTICE
There are four wires in the output lead from the charger;
black and white together to battery B-; red wire to battery B+;
green wires to connector on red wire #14 on the interlock cir-
cuit. The black and white wires are terminated in a thermistor.
Take extra care when handling the thermistor.
1. Disconnect 4 wires in charger output lead from battery B-,
battery B+ and wire 14. Unplug power inlet cable from charger
pigtail.
2. Remove four nuts, four washers, four bolts and charger. See
Figure 9-11.
Figure 9-9. Battery Cables
Interconnecting cables
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