Let’s start by measuring a fresh battery
To evaluate whether batteries have deteriorated, measure the
internal resistance of a fresh battery. Deteriorated batteries will have
about 1.5 to 2 times (values for reference purposes) as high internal
resistance as a fresh one. Use these values as guidelines when
determining deterioration evaluation values.
Example: Changes in the internal resistance and voltage
associated with battery deterioration
Internal resistance: 0.5 m
Ω
Voltage: 2.0 V
(Example values)
1.0 m
Ω
(Doubled)
1.8 V (Decreased by 10%)
Resistance has
doubled . . .
Deteriorated
Fresh
Need
replacing
FAIL
Initial value × 2
WARNING
Initial value × 1.5
PASS
Initial value
Available
charge
amount
Internal
resistance
Deterioration
evaluation value
of resistance
PassPassPassPass Fail
Battery Tester Quick Guide
BT3554F961-00
Battery Tester Quick Guide
HIOKI BT3554F961-00HIOKI BT3554F961-00
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