Common questions

What does it mean when a battery charger says float?

What does it mean when a battery charger says float?

The simple definition of float/maintenance charging is that voltage is continuously applied to the battery terminals. The amplitude of that voltage varies between 0.2 volts and 0.6 volts above the rest state voltage of the battery when it is fully charged.

How long can you leave a float charger on a battery?

Due to this, batteries can be left hooked-up to a float charger for an indefinite period of time. Batteries work best when they are maintained at 100%, and a float charger is a perfect way to do this. My trusty Battery Tender® with float mode. This thing has never let me down in over 4 years of use!

What is float mode boost mode of battery charger?

Float charging counters battery self-discharge. Float is the voltage at which a fully charged battery is maintained at a state of high charge. “Boost” charge is an elevated voltage mode that shortens recharge time by enabling the charger to spend more time delivering its maximum current.

Can a float charger damage a battery?

Float Charger Can be Connected Indefinitely to the Car Battery. While you can only use the trickle charger for a day or two on a monthly basis to charge the car battery, the float charger can be indefinitely connected to the battery and cause no damage to it.

What is the difference between float and equalize charge?

What does “equalize” charging do, and why is it needed? Equalizing temporarily elevates the charging voltage of the entire battery string above the normal “float” voltage. The elevated charging voltage allows all cells, including the weak ones, to accept more current from the charger than they would at float voltage.

How do you equalize a charge on a battery?

Equalizing a battery is done by applying a 10% higher voltage than the recommended charge voltage. This high level of charge frees the sulfur ions back into the electrolyte and desulfates it. The high voltage also forces the acid accumulated at the bottom of the cell to rise up and mix equally with the water.

Can a trickle charger bring back a dead battery?

You can’t “resurect” a dead battery with a trickle charger. A trickle charger is meant to maintain a fully charged battery. Bring the battery inside for 24 hours then put it back in, drive around for an hour and have the electrolytes checked at your trusted local repair shop. Start thinking about buying a new battery.

What is equalizing charge in batteries?

What is an Equalizing Charge? An equalizing charge is just another way of describing a deliberate overcharge of the battery, and is part of a proper maintenance routine that should be performed on lead acid batteries. The purpose is to remove sulfate crystals from the battery plates.

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Ruth Doyle