# Quick Answer: What Amp Should I Charge My Deep Cycle Battery?

## When should you charge a deep cycle battery?

They should be recharged when they indicate a 50% charge, but never let them get lower than 20% to ensure a long life.

Lead-acid batteries, such as deep cycle batteries, run the risk of sulfation if left uncharged for too long..

## How do you maintain a deep cycle battery?

How Do I Maintain Deep-Cycle Batteries?Program your voltage set points so that the battery bank charges at the proper voltage.Refill flooded lead-acid batteries with distilled water every 2-4 weeks as needed.Regularly check battery state of charge. … Clean terminal connections and cables to prevent corrosion.May 2, 2019

## Can you overcharge a car battery at 2 amps?

A: If you leave the charger connected continuously, even at a mere 2 amps, the battery eventually will die. Overcharging a battery causes excessive gassing — the electrolyte gets hot and both hydrogen and oxygen gas are generated.

## How long does it take to charge a deep cycle battery at 10 amps?

15 hoursCharge it at 10 amps, you will need to charge that battery for up to 15 hours to fully charge as it puts up to 10 amps in each hour.

## How do you determine the amperage required to charge a battery?

As we know that charging current should be 10% of the Ah rating of battery. Therefore, Charging current for 120Ah Battery = 120 Ah x (10/100) = 12 Amperes.

## How long will a 100ah battery run a fridge?

1000 hoursA very small user of power is a 1.2 watt LED light running on a 12 volt power source will use 1.2W / 12V = 0.1 amps. Therefore a 100ah (amp hour) battery will last for 1000 hours. A slightly different example is a 60 watt fridge running on a 12 volt power source uses 60 /12 = 5 amps, but only while the motor runs.

## Can you run a deep cycle battery flat?

Typically, a fully charged deep cycle battery will have a voltage of over 12.8V – 13V. … Faulty cells are difficult and usually impractical to repair, so you’ll need to replace the battery. When a deep cycle battery is fully discharged (dead flat), it should reveal a reading of approximately 10.5V.

## What setting should I charge my deep cycle battery on?

If your battery charger has the option to set the voltage for the charge, set it to 20 percent of the rated amp per hour rate of the battery you are charging. The amp per hour rate will be written on the top or side of the battery. Deep cycle batteries charge best when the charge flow is at its lowest.

## Can you overcharge a deep cycle battery?

Both overcharging and undercharging will have serious adverse effects on the lifespan of a deep cycle battery. In particular, you can seriously shorten the lifespan of a battery if it is used in a deep cycle application that it was not designed for.

## Does a deep cycle battery need a special charger?

Due to the increased demand placed on deep cycle batteries, there is a special conditioning process that helps keep your battery healthy while it is plugged in to the charger. … Your best bet is to look for a smart charger that includes testing lights so that you can monitor your battery’s condition during charging.

## How long should you charge a deep cycle battery?

A charger with 15 amps, for instance, will take about two hours to fully charge a battery at a 25-percent discharge value. Chargers with only 5 amps, however, will need a full six hours with the same battery.

## How fast can you charge a deep cycle battery?

Depending on the physical size, a “deep cycle’ battery may have 80+ “amp hours” (1 amp per hour at 80 hours) of storage capacity. So to charge a deep cycle battery at 2 amps from a “discharged state”, would take around a couple of days (48 hours).

## How long can you leave a 2 amp charger on a battery?

24 hoursA car battery is typically 48 amps. This means that a 2 amp charger will take 24 hours. A 10 amp charger, on the other hand, will take 5 hours. For a car battery in most cases, it is okay to use a 10 amp charger and is normally the recommended amount.

## Can a car alternator charge a deep cycle battery?

Yes it can but it is better to bring the engine speed up to 1500 rpm or so. The alternator will be able to charge the battery at a higher rate because it is turning faster. At idle speed 500–700 rpm the alternator wont produce much charging capacity. Swapping out the batteries as your question states is a good idea.

## What will a 100ah battery run?

Amp Hours X Voltage = Watt Hours That means that our 100 amp battery can sustain about 1200 watts from devices for an hour or 600 watts worth of devices for two hours.

## How many amps should you use to charge a deep cycle battery?

It is better to charge a deep cycle battery at a higher charge rate like 6-amps, 10-amps or higher. However, check you battery specifications for the proper charge rate.

## Should I charge my battery at 2 or 10 amps?

It is best to slow charge the battery. Slow charging rates vary depending on the battery’s type and capacity. However, when charging an automotive battery, 10 amps or less is considered a slow charge, while 20 amps or above is generally considered a fast charge.