BATTERIES
Battery Testing
Page 13-12
2004 V-Glide 36-Volt Electric Vehicle Maintenance and Service Supplement
13
Performing the Discharge Test, Continued:
3. Check and record the electrolyte temperature of the battery packs. Check center cell of each battery.
4. Reset discharge machine (or reset timer if using older discharge machine with 36-volt vehicle).
5. Turn the tester ON.
6. When the batteries have been discharging for approximately 60 minutes, set the discharge machine to
function 3 and check battery set voltage. Check voltage every 10 minutes throughout the rest of the test.
As soon as the battery set voltage reaches 0.50 volts above the shut-off point (31.5 volts), use a multi-
meter to measure individual battery voltages. Measure and record the voltage of each battery to the
nearest 0.01 volt. See following NOTE.
NOTE: The tester will shut off automatically when shut-off voltage is reached.
Interpreting Discharge Test Results
1. If discharge time is 60 minutes or higher, the problem is not with the batteries.
2. If discharge times are low (less than 60 minutes), replace batteries below 5.0 volts.
3. In general, battery sets that discharge in less than 60 minutes at 78 °F (25.6 °C) on the discharge test
will typically not hold a charge for an entire work shift. However, discharge time is dependent on the elec-
trolyte temperature. The table shown gives the discharge times, at various temperatures, of a set of bat-
teries that delivers 62 minutes at 80 °F (26.7 °C).
BATTERY VOLTAGES
BATTERY CONDITION
1
2
3
4
5
6
5.25 V
5.25 V
5.25 V
5.25 V
5.25 V
5.25 V
Excellent
5.3 V
5.3 V
5.4 V
4.9 V
5.3 V
5.3 V
Battery no. 4 is near end of useful life
5.4 V
5.4 V
5.0 V
5.5 V
4.7 V
5.5 V
Battery nos. 3 and 5 are near end of useful life
ELECTROLYTE
TEMPERATURE
DISCHARGE TIME TO
SHUT-OFF POINT
ELECTROLYTE
TEMPERATURE
DISCHARGE TIME TO
SHUT-OFF POINT
40-49 °F
(4-9 °C)
40 Minutes
85-89 °F
(29-32 °C)
64 Minutes
50-59 °F
(10-15 °C)
45 Minutes
89-99 °F
(32-37 °C)
66 Minutes
60-64 °F
(16-18 °C)
50 Minutes
100-109 °F
(38-43 °C)
68 Minutes
65-69 °F
(18-21 °C)
54 Minutes
110-119 °F
(43-48 °C)
70 Minutes
70-74 °F
(21-23 °C)
57 Minutes
120-129 °F
(49-54 °C)
72 Minutes
75-79 °F
(24-26 °C)
60 Minutes
130-150 °F
(54-66 °C)
74 Minutes
80-84 °F
(27-29 °C)
62 Minutes
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