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ELECTRICAL SCIENCE Module 5 DC Generators |
Batteries
BATTERY HAZARDS
Summary
Battery hazards are summarized below.
Battery Hazards Summary
Short circuits cause a great reduction in battery capacity.
To prevent short circuits in a battery, overcharging and overdischarging
should be avoided at all costs.
The adverse effect of gassing is that if gassing occurs and the gases are
allowed to collect, an explosive mixture of hydrogen and oxygen can be
readily produced.
To reduce the amount of gassing, charging voltages above 2.30 volts per
cell should be minimized.
Whenever the battery is charged, the current flowing through the battery
will cause heat to be generated by the electrolysis of water and by I2Ri
power generation.
Higher temperatures will give some additional capacity, but they will
eventually reduce the life of the battery. Very high temperatures, 125°F
and higher, can actually do damage to the battery and cause early failure.
Rev. 0
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