1.1 Measuring Battery Wear
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Overview
The graph below shows the relation between storage capacity
and initial value of internal resistance in a lead-acid battery.
"CS," "HS," and "MSE" denote JIS (Japanese Industrial Stan-
dard) lead-acid battery types.
Internal resistance of an MSE (sealed stationary lead-acid bat-
tery) can be read at approximately 1 mΩ (100 Ah) and approxi-
mately 0.13 mΩ (1000 Ah). Under conditions of battery wear,
internal resistance rises to 1.5 - 2 times its initial value (refer-
ence values).
Overview Chapter 1
1.1 Measuring Battery Wear
For determining battery wear, first measure
internal resistance in a new or good battery.
CS : clad stationary lead-
acid battery
HS : high-rate discharge
stationary lead-acid
battery (pasted type)
MSE: sealed stationary lead-
acid battery
Lead-acid battery
[Ah]
[m
Ω]
Internal resistance value
CS
HS
MSE
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