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The Best Battery Desulfator 2021

Battery Desulfator

Regardless of the lead-acid car battery you use, with the lack of maintenance, they can begin to lose a large amount of capacity due to sulfation. Whilst a battery is in an uncharged state for long periods of time, lead sulfur forms as small deposits that hardens overtime.

The longer that you leave the battery uncharged, these hardened deposits begin to worsen thus lowering the capacity of the battery. However, by using a battery desulfator, you can restore any lost capacity and prevent early battery failure.

The best battery desulfator is the BatteryMinder 128CEC1, which doubles up as a charger and maintainer to provide all-round battery maintenance.

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Battery Desulfator Comparison

Battery DesulfatorChargerVoltage
BatteryMinder 128CEC1Yes12V
PulseTech PowerPulseNo12V - 48V
Clean Power RegeneratorNo12V - 72V
Battery Life Saver RejuvenatorNo12V - 24V

The battery desulfator works by sending pulses of electricity into the battery to remove any sulfate from the lead plates. The devices themselves are often included with some premium car battery chargers. However, if you already own a charger, there are many cheaper options that connect with the existing charger for all-round maintenance.

Below is a list of the best battery desulfators that help extend the lifespan of the battery by restoring lost capacity.

The Best Battery Desulfator

1. BatteryMinder 128CEC1 Battery Desulfator

The BatteryMinder is a reputable brand that produce a range of products from their popular battery maintainers to chargers. The 128CEC1 model in particular is their flagship device that really stands out in terms of all-round car battery maintenance.

Unlike other battery desulfators, the 128CEC1 uses a range of high frequencies to remove both old and new deposits rather than just a single fixed frequency.

Other features of the BatteryMinder 128CEC1 include:

  • Automatic full time desulfator
  • Ambient temperature sensor to adjust battery voltage
  • Maintains up to 8 batteries simultaneously
  • Suitable for a range of battery types
  • 12V with 2/4/8 Amp settings
  • Includes various hardware and connectors
  • FFC certified for maximum efficiency

The BatteryMinder 128CEC1 may have a premium price tag but it’s a device that displays superior quality. It’s the best desulfator battery charger on the market that provides you with a method of maintaining multiple batteries at the same time.

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2. XTREME CHARGE XC100-P Desulfator & Charger

The Xtreme Charge Desulfator Battery Charger is a compact device that evaluates, tests and charges 12 volt lead acid batteries. It uses proprietary algorithms and microprocessor controlled technology to provide an effective charge and desulfator functionality.

Other features of the Xtreme Charge XC100-P include:

  • Charger and desulfator
  • Variable float charge
  • Includes fuse protected battery clamps
  • LED indicators
  • Suitable for a range of battery types

The Xtreme Charge XC100-P is a cheaper alternative to the BatteryMinder that does a great job at restoring lost capacity and fully charge the battery. However, when it comes to charging, it only charges at 2.5 amps, which may be too slow for those that require fast charging.

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3. PulseTech PowerPulse Battery Maintenance System

PulseTech is another popular brand and unlike the BatteryMinder and Xtreme Power devices, it’s purely a desulfator. It’s designed to connect to an external charger via a prong output to provide an effective pulsation to remove any sulfation.

Other features of the PulseTech PowerPulse include:

  • Available in 12V. 24V or 48V
  • Compatible with most 6 or 12 volt battery maintainer
  • Uses QuadLink to ensure the charger is in full control
  • Connects to a charger via a standard 2 prong output
  • Suitable for a range of battery types
  • Can be installed for use whilst driving

Overall, the PulseTech PowerPulse is a great all-round battery sulfator that can be used alongside your current charger or maintaining device. By using this battery desulfator, the brand themselves even claim that it can increase battery life span by up to five times.

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4. Clean Power Battery Regenerator

For those on a budget and looking for a cheap battery desulfator to test out, the Clean Power device is a great option. It has a lightweight and compact design that uses LED lights to indicate when the pulsation is working.

Other features of the Clean Power Battery Regenerator include:

  • Auto-setting for voltages between 12 and 72V
  • Peak amperage of 4 amps
  • LED lights for pulsation feedback
  • Available as a 12V to 48V model
  • Suitable for a range of battery types

Although the Clean Power Regenerator is one of the cheapest available, it really does have plenty of functionality. For those that have a single battery that’s struggling to retain power, this battery desulfator is a great option that won’t disappoint.

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5. Battery Life Saver Rejuvenator

The Battery Life Saver does exactly what it says within its brand name. It’s commonly used with solar or RV battery banks but it’s also highly effective when used to recondition a regular 12V car battery. The brand even claims that it extends the battery life by up to 2 to 3 times once the sulfate crystals that have built up have been removed.

Other features of the Battery Life Saver include:

  • 4 foot wire leads
  • Includes O-ring connectors
  • Suitable for 12 and 24 volt battery systems
  • Uses a patented square sine technology
  • Works with a range of lead acid battery systems

Overall, the Battery Life Saver is a premium battery sulfator that promises an extension of your batteries life span. Although its great for regular car batteries, it’s even better for bank battery setups that you may have installed.

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Battery Sulfator Buying Guide

Sulfation is one of the most common causes of lead batteries struggling to hold their charge. It’s caused by the lack of maintenance and old age, which has the effect of reducing the capacity of the battery overtime.

When you leave your battery in an uncharged state for long periods of time, the lead sulfur forms as a small deposit that hardens overtime. This reduces the capacity of the battery and promotes early battery failure, which isn’t what you want to hear.

Therefore it’s important that you maintain your battery accordingly to avoid sulfation buildup. This can be achieved by using a battery desulfator that can revive batteries that may otherwise be classed as dead. It does this by sending a range of high frequencies to remove sulfation crystals that have built up overtime.

To help you make an informed buying decision, below is a battery sulfator guide that covers all the important factors.

Desulfator Battery Charger

When a Battery Desulfator Will Not Work

It’s important to remember that the buildup of sulfation crystals may not always be the cause of damage to your battery. Physical damage such as an open or short cell cannot be fixed by using a battery desulfator or any other method for that matter.

By using a car battery tester, you will be able to discover whether a battery has any physical damage and if it does, it’s probably best to purchase a new battery.

How Does A Desulfator Work?

Once connected to a battery, the desulfator sends several wide ranging frequencies that dissolve the sulfate crystals upon the lead plates.

This has the effect of cleaning the negative and positive battery plates and restoring the lost capacity. For further details of the process of dissolving sulfate crystals upon a battery, take a look at this article.

Desulfator Battery Charger

Not all battery desulfators function in a similar fashion. Some require connecting to a charger or maintainer whereas others are complete systems that are both a charger and desulfator combined. However, for a desulfator battery charger, you will pay a premium over the alternative.


Car batteries are expensive to purchase and if you find yourself doing this on a regular basis, it can become fairly frustrating. However, little do people know, a lot of the batteries that you may otherwise think are dead can actually be restored to an almost new condition.

By using a battery desulfator, it sends a range of high frequency pulses that dissolve the hardened sulfate. This restores the lost capacity and extends the life span of your battery.

Considering that even the most expensive battery desulfator is less than half the price of the average car battery, it makes sense to attempt to fix the battery before throwing it away. All of our recommendations within this article are suitable for a range of different budgets and offer great value for money.

procarreviews author

Written By Dan

About the Author

Dan is an automotive journalist and owner of over 10 cars ranging from supercars, tuned cars, classics and your good old beater cars. He always likes to get his hands dirty with nut and bolt restorations or detailing sessions using the best products on the market.

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