Datasheet

Nickel Metal Hydride Rechargeable Battery
C. Abuse Test
Items
Test conditions Test results
1. Overcharge test 0.1C for 48hours No functional change
1C for 5hours Cell venting may occur
2. Over discharge test
(Forced discharge)
Cell is discharged with 0.2C to 0.00V, then
with 1C forced discharged for 1.5rs
No rupture
No explosion
Leakage may occur
3. Short circuit test Cell is fully charged with 0.1C for 16hours,
then shorted for 1hour or longer with a 10mΏ
load or less
Operation of vent
Leakage may occur
4. Vibration test Cell is vibrated continuously lengthwise for
60minutes
Amplitude: 4mm
Frequency: 1000times/minutes
No physical change
No leakage
Cell electrical performances
unchanged
5. Shock test
(Drop test)
Cell is dropped 3 times from a 1.9m height
onto solid wood (10mm thick) with random
orientation
No rupture
No leakage
6. Penetration test
(Hole drilling)
Cell is drilled diameter wise with a 4mm Φ
drill at a depth of less than 1mm
Temperature increased to a
maximum of 43ºC
Leakage from hole area
7. Crush test Cell is crushed with a vice The compressed area heats up
to between 500~800ºC
8. Water immersion
test
a. Cell is immersed in water for one month
b. Cell is immersed in salt water with a 5%
concentration for one month
No rupture
No explosion
9. Fire exposure test
(Incineration)
Cell is thrown into a charcoal fire Swelling and/or breakage of
seal plate