Float charging

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Float Charging or Trickle charging is a common method of maintaining cells in a battery at an optimum preset Voltage, often after a more vigorous short-term Boost Charge has been employed to restore discharged or unequally charged cells to the maximum Surface Charge.

For example, a nominally 24 Volt battery bank comprised of 12 x 2 Volt flooded lead-acid cells will commonly be maintained at a float charge of 26.76 Volts (2.23 Volts x 12 cells), after being restored to a typical maximum of 28.8 Volts (2.4 Volts x 12) via a Boost or Equalisation Charge.

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