Can Too Much Charging Ruin A Deep Cycle Battery?

by | Last updated on January 24, 2024

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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.

Can you damage a deep cycle battery?

Under seats and sleeping areas – use a Yuasa AGM or SMF flooded battery.

Hydrogen and oxygen gas produced from maintainable batteries can be damaging to your lungs and respiratory system when inhaled

.

How high can you charge a deep cycle battery?

Indeed, a typical cycle for a deep cycle battery would start at 100% capacity, followed by discharge of the battery to between 20 and 50% of its original capacity, and then recharge back to

100%

. The lifetime of your batteries will also be influenced by their typical depth of discharge.

Can you leave a deep cycle battery on charger?


Deep cycle batteries can be left on a charger for extended periods of time

, so you need to know that your 12V charger has a maintenance and conditioning program that is suitable to your battery's needs.

How often should I charge my 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.

Should deep cycle batteries be trickle charged?

Since deep cycle batteries generally have a lower discharge rate, trickle charging would largely be ineffective and its role of maintaining the battery charge level may become redundant. As a result,

one should not trickle charge a deep cycle battery

.

How do I know if my deep cycle battery is bad?

For deep cycle application

if the battery holds under load for a few seconds then voltage starts to steadily drop

this would indicate a problem with the battery. If the voltage instantly drops to 0 volts, that is also a problem.

How do you bring a deep cycle battery back to life?

You can recondition lead acid batteries by

first fully charging the battery, then slowly discharging it over a period of several hours

. Be sure to discharge the battery all the way to zero volts (or as close as possible) then recharge it again. Repeat this process several times.

How do you tell if a deep cycle battery is fully charged?


A full recharge should see a maximum temperature rise of 10 degrees Celsius

. Once the battery is fully charged it can be maintained by applying a charging voltage of 2.24 to 2.25 volts per cell (13.4-13.5 for 12volt and 26.8 to 27.0 for 24volt). This is called a “Float” charge.

How long can a deep cycle battery sit without charging?

They can sit in storage for a long time without having to charge their batteries. After

30 days

of being completely discharged, giant deep cycle batteries can be almost fully charged.

When should I replace my deep cycle battery?

Properly maintained deep-cycle batteries should last for

6 or more years

. Unfortunately some RV owners replace RV batteries every year or two. Extending is not difficult; it just requires some basic care & maintenance.

How should I charge my deep cycle battery?

What should a fully charged 12v deep cycle battery read?

Voltage on a fully charged battery will read 2.12 to 2.15 volts per cell, or

12.7 volts

for a 12 volt battery.

How often should I add water to a deep cycle battery?

Add water after fully charging the battery and use distilled water. Watering must be done at the right time and in the right amount or the battery's performance and longevity suffers.

Water should always be added after fully charging the battery

. Prior to charging, there should be enough water to cover the plates.

Can you overcharge a battery with a trickle charger?

The answer is yes.

A trickle charger can overcharge the battery at a low rate

. It provides continuous power to the motorcycle. So, you need to charge your motorcycle battery with smart chargers.

Can a car alternator charge a deep cycle battery?


Most vehicle alternators will never properly and fully charge up a Deep Cycle battery

so invest in a good charger or a solar arrangement with a charge controller/regulator with at least a three stage charging control (many chargers are now 6 or 7 stage affairs).

What is the average lifespan of a deep cycle battery?

Most deep cycle batteries can last

up to six years

with proper care and charging (depending on the frequency of use). It's up to you to make sure that your battery isn't being damaged by your charging routine.

Why won't my solar batteries hold a charge?

If your solar panel is not charging your battery properly the likely culprit are mainly:

Wrong Solar Panel Setup, Equipment Problems, Internal Problems of Battery or Faulty Battery, Solar Charge Controller Issues

. The easiest way to fix them is to replace faulty equipment.

How do you test a deep cycle battery?

David Martineau
Author
David Martineau
David is an interior designer and home improvement expert. With a degree in architecture, David has worked on various renovation projects and has written for several home and garden publications. David's expertise in decorating, renovation, and repair will help you create your dream home.