Float voltage: Difference between revisions
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==See also== |
==See also== |
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* [[Trickle charging]] |
* [[Trickle charging]] |
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[[cs:Plovoucí napětí]] |
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==References== |
==References== |
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Revision as of 15:46, 21 March 2010
Float voltage refers to the (somewhat) constant voltage that is applied continuously to a voltaic cell to maintain the cell in a fully charged condition. The appropriate Float voltage varies significantly with the chemistry and construction of the battery, and ambient temperature. With the appropriate voltage for the battery type and with proper temperature compensation, a float charger may be kept connected indefinitely without damaging the battery.
With a 6-cell (nominal 12V) lead-acid battery the correct float voltage is in the range 13.5 - 13.8 V at +25 °C and changes by about 0.1 V for a 5 °C change in ambient temperature. Not compensating for this will shorten battery life either by over- or under-charging.