25
Battery Storage
BATTERIES: ELECTRIC VEHICLES
Discharge test results:
BATTERY NO.
1
2
3
4
5
6
7
8
Discharge Voltage
3.80* V
5.25 V
5.65 V
5.25 V
5.50 V
5.60 V
5.70 V
5.30 V
*After a discharge test which lasted 45 minutes, battery no. 1 is clearly shown to be the problem. Battery no. 4 should
be watched a little more closely but appears to be okay. Battery no. 1 should be replaced with a battery that has about
the same age and usage as the other batteries in the set.
Example 2
Vehicle no. 70 was also suspected of having a bad battery due to its performance. The battery charger test showed
7.0 amps after a full charge. After confirming there were no problems with the electrical system, charger or brakes, the
on-charge voltage was recorded as follows:
BATTERY NO.
1
2
3
4
5
6
7
8
On-Charge Voltage
7.40 V
7.10* V
7.45 V
7.6 V
7.65 V
7.50 V
7.55 V
7.65 V
*Battery no. 2 was immediately suspected as the problem. After checking battery no. 2 with a hydrometer, it was
discovered that the negative post cell was completely dead. Battery no. 2 should be replaced with a battery that has
the same age and usage as the other batteries in the set.
BATTERY STORAGE
See General Warning on page 1-1.
When storing batteries during the off-season or when maintaining a replacement stock, follow these guidelines:
1.
Keep the batteries clean and free of corrosion.
See Battery Care on page 25-3.
2.
Batteries that are in vehicles for winter storage should be left disconnected in the vehicles if the batteries are
not going to be connected to a charger.
3.
Fully charge the batteries prior to storage.
4.
Store in a cool area. The colder the area in which the batteries are stored, the less the batteries will self-discharge.
Batteries stored at 0 °F (–17.8 °C) will discharge very little over a four-month period. Batteries stored at 80 °F
(26.7 °C) will have to be recharged every few weeks.
5.
48-volt Club Car electric vehicles and compatible battery chargers are designed to be left connected, with AC
power to the charger ON, during off-season storage. The storage charge feature will automatically charge the
batteries as needed throughout the storage period.
See Storage – Electric Vehicle, Section 3, Page 3-5.
CHARGING A BATTERY PACK THAT HAS LOW VOLTAGE
See the appropriate battery charger maintenance and service manual.
Page 25-12
2007-2009 Turf 252, Carryall 252 and XRT 900 Maintenance and Service Manual
