The Best Diy Battery Desulfator Kit of 2022 – Reviewed and Top Rated

After hours researching and comparing all models on the market, we find out the Best Diy Battery Desulfator Kit of 2022. Check our ranking below.

2,712 Reviews Scanned

SaleRank No. #1

Battery Desulfator Reconditioner for 12V–72V Lead-Acid Batteries, Pulse Repair to Restore & Extend Battery Life – Works with AGM, Gel, VRLA, SLA, Flooded – for Car, RV, Solar, Marine, Golf Cart

【NOT a Charger, but a Professional Battery Desulfator】 This is not a charger—it's a professional battery desulfator, engineered to rejuvenate, restore, and extend the lifespan of lead-acid batteries. Compatible with 12V, 24V, 36V, 48V, 60V, and 72V battery systems, it's the ideal solution for maintaining all types of lead-acid batteries, including AGM, GEL, SLA, and Flooded.
【Revive Battery Performance & Extend Lifespan】 Acting as both a battery reconditioner and battery rejuvenator, this device sends advanced high-frequency, low-current pulses that prevent and dissolve lead sulfate buildup. This process effectively restores battery capacity, enhances performance, and brings aging batteries back to near-new condition.
【Effective Desulfation Process】 As a powerful battery desulfator, it typically takes 2–4 weeks to see improvements, depending on the battery’s condition. With up to 30 cycles of intelligent desulfation, it works gradually but thoroughly to recover sulfated batteries and restore lost energy storage potential.
【Built-in Safety Features for Reliable Use】 Designed for safe, long-term operation, this battery reconditioner includes smart low-voltage cutoffs, internal fuses, reverse polarity protection, and a rugged aluminum shell for efficient heat dissipation and durability in all environments.
【Versatile Compatibility & Usage】 Whether used as a battery rejuvenator during charging, discharging, or standby, it delivers optimal results when paired with a charging cycle. Compatible with AGM, GEL, VRLA, SLA, and Flooded batteries from 12V to 72V, making it ideal for cars, RVs, solar systems, and backup power units.

Rank No. #2

Battery Desulfator, Automatic Pulse Lead-Acid Battery Reconditioner for Life Extension and Repair (PL04C-400AH Blue)

AUTOMATIC OPERATION: Features pulse technology that automatically reconditions lead-acid batteries through controlled charging cycles
VERSATILE COMPATIBILITY: Works with various types of lead-acid batteries including car, marine, RV, and deep cycle batteries
BATTERY MAINTENANCE: Helps dissolve sulfate crystal buildup on battery plates to restore capacity and extend battery life
PULSE TECHNOLOGY: Utilizes specialized electronic pulses to help revive and maintain battery performance
EASY INSTALLATION: Simple connection process with battery terminals for continuous maintenance and reconditioning

Rank No. #3

12V Lead-Acid Battery Desulfator Battery Regeneration Desulfurization Devices Sulfate Removal Lead Battery Recycling Impulse Devices

The main reason for lead-acid battery deterioration:When lead-acid battery repeatedly charged and discharged for a long period of time, the sulfuric acid in the electrolyte and the lead in the electrode will undergo a chemical reaction and turn into lead sulfate crystals (sulfation),which is the main reason for battery deterioration and the charging failure
This battery desulfator battery maintainer uses the high-frequency peak pulse to prevent lead sulfate crystals from sticking to the electrode,and gradually decomposes and removes the lead sulfate,extending battery life and keeping electrode in a near-new state
Before using battery revive desulfator,please test the battery voltage first.When the battery voltage is less than 11.6V, please charge the battery first.Until the battery voltage is greater than 11.6V, you can use the battery desulfator
You will feel the battery performance improvement after 2-3 weeks of use.It depends on battery usage and the amount of lead sulfate crystals,the more lead sulfate crystals accumulate,the longer it will take
Connect the red and black terminals to the positive and negative poles of the battery respectively;when the indicator light is on,this auto pulse desulfator start working.If the battery regenerator does not work,check whether the voltage is too low.Please try again after recharging the battery

Rank No. #4

400AH Lead-Acid Battery Desulfator Battery Maintainer Auto-Setting for 12V-48V Auto Pulse Battery Revive Battery Regenerator

The main reason for the deterioration of lead-acid battery:When lead-acid battery is repeatedly charged and discharged for a long period of time, the sulfuric acid in the electrolyte and the lead in the electrode will undergo a chemical reaction and turn into lead sulfate crystals (sulfation), which is the main reason for the deterioration of the battery and the charging failure
Our Battery Desulfator Battery Maintainer adopt high-frequency peak pulse to prevent lead sulfate crystals from sticking to the electrode, and gradually decomposes and removes the lead sulfate, extending the life of the battery and keeping the electrode in a near-new state
You will feel the battery performance improvement after 2-3 weeks of use. It depends on the usage of the battery and the amount of lead sulfate crystals, the more lead sulfate crystals accumulate, the longer it will take...Before using this product, please test the battery voltage first. When the battery voltage is less than 11.5V, please charge the battery first. When the battery voltage is greater than 11.5, use the battery desulfator
Connect the red to the positive (+) terminal of the battery and the black to the negative (-) terminal of the battery. Once connected, the battery voltage will be recognized automatically without manual setting.If the device is not working, check whether the voltage is too low. Please try again after charging
Compatible Battery:12V~48V, max:400AH lead-acid battery;This product can be used together with charger

Rank No. #5

12 Volts Lead Acid Battery Maintainer & Desulfator Battery Life Extender Desulfator

Battery desulfurizer, prevent sulfate accumulation, prolong the service life of the battery
If the warning light is on,it means the positive and negative poles of the battery are connected in reverse
Regardless of whether the battery is charging or not, it can be connected to the battery. Connect the red wire to the positive terminal and the black wire to the negative terminal of the battery
Work for any sulfated lead acid batteries, but not work for damaged or dead batteries
Input Voltage:DC12V;Peak Voltage:20V;Working Amp:20mA;Power Consumption:0.2w;Frequency:3.7 KHz;Suitable for:12V lead acid battery, such as AGM, SLA, VLRA, etc.

Rank No. #6

200AH Lead Acid Battery Desulfator 12-48V Auto Pulse Desulfator 2A Battery Regenerator Extending Battery Life

[The main reason for the deterioration of lead-acid battery] When lead-acid battery is repeatedly charged and discharged for a long period of time, the sulfuric acid in the electrolyte and the lead in the electrode will undergo a chemical reaction and turn into lead sulfate crystals (sulfation), which is the main reason for the deterioration of the battery and the charging failure
This product uses the high-frequency peak pulse to prevent lead sulfate crystals from sticking to the electrode, and gradually decomposes and removes the lead sulfate, extending the life of the battery and keeping the electrode in a near-new state
[Effect] You will feel the battery performance improvement after 2-3 weeks of use. It depends on the usage of the battery and the amount of lead sulfate crystals, the more lead sulfate crystals accumulate, the longer it will take
[Easy to use]Connect the red to the positive (+) terminal of the battery and the black to the negative (-) terminal of the battery. Once connected, the battery voltage will be recognized automatically without manual setting.If the device is not working, check whether the voltage is too low. Please try again after charging
[Compatible Batteries] 12V~48V, Max 200AH lead-acid battery,such as AGM, SLA and VLRA

SaleRank No. #7

MaySpare Dual Battery Isolator Kit 12V 140Amp Voltage Sensitive Relay VSR Double Battery Automatic Charger & Wiring Cable Kit

12V, 140A, 13.3V cut-in voltage, 12.8V cut-out voltage,; Package Include All the Bits and Pieces Needed for a Complete Installation
Working Voltage: Having Voltage Sensitive Chip,Rely Cuts in at 13.3 Volts and Cuts out at 12.8 Volts to Ensuring Primary Battery is Always Ready for Vehicle to Run.
Fuction:Like Having Two Separate Power Sources,The Dual Battery Isolator Kit Enables Your Accessories to Run From a Separate Battery While the engine is not running on your vehicle While keeping your Main Battery Charged and Your Vehicle Always Ready to Go and Start When You Want It.
Compatibility: This battery isolators are small and suitable for almost anywhere, for ATV, UTV, Boats, RV's，marine vehicle, truck, caravan
Premium service :Provide better service, please contact us if you have any questions!

Rank No. #8

4A Battery Desulfator Lead-Acid Battery Desulfator 12V 24V 36V 48V Battery Regenerator Auto Pulse Desulfator Round Terminal

When lead-acid battery is repeatedly charged and discharged for a long period of time, the sulfuric acid in the electrolyte and the lead in the electrode will undergo a chemical reaction and turn into lead sulfate crystals (sulfation), which is the main reason for the deterioration of the battery and the charging failure
Auto Pulse Desulfator Round Terminal uses the high-frequency peak pulse to prevent lead sulfate crystals from sticking to the electrode, and gradually decomposes and removes the lead sulfate, extending the life of the battery and keeping the electrode in a near-new state
You will feel the battery performance improvement after 2-3 weeks of use. It depends on the usage of the battery and the amount of lead sulfate crystals, the more lead sulfate crystals accumulate, the longer it will take...Before using this product, please test the battery voltage first. When the battery voltage is less than 11.5V, please charge the battery first. When the battery voltage is greater than 11.5, use the battery desulfator
Connect the red to the positive (+) terminal of the battery and the black to the negative (-) terminal of the battery. Once connected, the battery voltage will be recognized automatically without manual setting.If the device is not working, check whether the voltage is too low. Please try again after charging
Compatible Battery:12V~48V, max:400AH lead-acid battery;This product can be used together with charger

Rank No. #9

Solder-It Charge-It Battery Additive Heavy-Duty Concentrate (32 fl oz), Desulfator, Reactivator for Motorcycle, Golf Cart, Truck, Boat - Can Restore Charge to Dead Car Battery

RESTORES WEAK BATTERIES: Our Solder-It Charge-It Battery Additive Heavy-Duty Concentrate lets you restore and repower weak batteries within minutes and it can even bring dead batteries back to life.
ELIMINATES EXCESSIVE SULFATION: Our reactivator uses special penetrating agents to get rid of harmful sulfate build-up on the battery plates and allow the electrolytes to generate charge again.
INCREASES ELECTRICAL ENERGY: Get faster and easier starts thanks to increased electrical energy from our battery desulfator. Concentrated ingredients effectively re-energize your battery's electrolytes.
VERSATILE BATTERY FILLER: You can use our battery maintainer on various battery packs, including motorcycle batteries, golf cart batteries, truck batteries, boat batteries, snowmobile batteries, and more.
UNLIMITED SHELF LIFE: You can store this car battery additive for years without worry. Its unlimited shelf life means that unused portions will still be as effective as the day you first bought them.

Rank No. #10

Battery Desulfator, Automatic Pulse Repair Battery Reconditioner Extend Life for Lead-Acid Batteries (Black Board)

🔋Restore and extended battery life :Usually, batteries that have been used for more than six months need to be repaired to extend their lifespan. An advanced battery repair mode uses slow pulse reconditioner technology to detect battery sulfation and acid stratification to restore lost battery performance for stronger engine starts and extended battery life.
🔋 New advanced technology: High-frequency peak pulse delivers an electronically controlled pulse to the battery, dissolves sulphates without damaging battery plates.
🔋 Desulfating process: The process can take up to 1-3 weeks. It needs to be left on the battery for more than 15 days to have the effect of repairing the battery .Not every battery can be saved, especially the almost dead battery.
🔋 Widely used;Intelligent automatic repair power without damaging the battery. Lead acid AGM/GEL/EFB, MF, Flooded battery, VRLA, SLA, wet battery. For cars, trucks, motorcycles, SUVs, golf carts, farm vehicles, motorboats.
🔋Note: This battery desulfator is for sulfated batteries, not dead ones, Battery scrapping can not be repaired, won't solve all battery problems, but it does desulfate them. This product is ineffective for batteries with damaged plates, dried up electrolyte and severe lack of electrolyte. The battery needs to be able to be charged when using our desulfator device.

Last update on 2025-11-22 / Affiliate links / Images from Amazon Product Advertising API

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FAQ:

Q: What is the best way to desulfate batteries?

A: Implementing the method through PWM controlled circuit is probably the best way of doing it. ” Desulfation is achieved by high current pulses produced between the terminals of the battery. This technique, also called pulse conditioning, breaks down the sulfate crystals that are formed on the battery plates.

Q: What is a desulfator circuit and how does it work?

A: The result is a great reduction in the battery’s ability to produce electricity. With a desulfator circuit you can reverse this process and rejuvenate the battery to like new condition.

Q: Does charging lead acid batteries with PWM initiate desulfation?

A: Sulphation in lead acid batteries is quite common and a big problem because the process completely hampers the efficiency of the battery. Charging a lead acid battery through PWM method is said to initiate desulfation, helping recover battery efficiency to some levels.

Q: How much voltage can a desulfator charge a battery?

A: But the desulfator / charger is a constant current device. If you set it for half an amp by using a 12 microfarad “Run” capacitor, then it will push half an amp at whatever voltage it needs. It can go as high as 170 volts DC.