(4) Check on battery specific gravity.
If battery is likely to be discharged due to failure in startup of the engine, m easure the
specific gravity of battery acid.
The relation between- battery charge condition (charging rate) and specific gravity is as
shown below.
Liquid
C h a r g m g '\ . temp,
rate
( %}
2 0
0
- 1 0
1 0 0
1. 28
1. 29
1. 30
9 0
1. 26
1. 27
1. 28
8 0
1.24
1. 25
1, 26
7 5
1. 23
1. 24
1. 25
Each value has a deviation of ± 0.01.
When th e charging rate is below 75%, the battery needs to be recharged.
Г7 - 1. Caution on battery charge j
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