Hydrometer Temperature Correction - E-Z-GO TXT 48V Repair And Service Manual

Read all of Section B and this section before attempting any procedure. Pay particular attention to all Notices, Cautions, Dangers and Warnings.
Since the hydrometer test is in response to a vehicle
exhibiting a performance problem, the vehicle should be
recharged and the test repeated. If the results indicate a
weak cell, the battery or batteries should be removed
and replaced with a good battery of the same brand,
type and approximate age.
Electrolyte
Temperature
° F ° C
160 71.1
150 65.6
140 60.0
130 54.4
120 48,9
110 43.3
100 37.8
90 32.2
80 26.7
70 21.1
60 15.6
50 10
40 4.4
30 –1.1
20 –6.7
10 –12.12
Fig. 8 Hydrometer Temperature Correction
+.032
+.030
+.028
+.026
+.024
EXAMPLE #1:
+.022
Electrolyte Temperature
+.020
Above 80°F (27°C)
+.018
+.016
Electrolyte temperature
+.014
90° F (32° C)
+.012
Hydrometer reading 1.250
+.010
1.250 + .004 = 1.254
+.008
corrected specific gravity
+.006
+.004
+.002
0
–.002
–.004
–.006
EXAMPLE #2:
–.008
Electrolyte Temperature
–.010 Below 80°F (27 °C)
–.012
–.014
Electrolyte temperature
–.016
70° F (21° C)
–.018
Hydrometer reading 1.250
–.020
1.250 - .004 = 1.246
–.022
corrected specific gravity
–.024
–.026
–.028
Repair and Service Manual
BATTERIES AND CHARGING
Page H-7