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Battery Reconditioning, Desulfation, Maintenance and Recovery... Made Easy!

Battery Reconditioner, Battery Desulfator, Battery Rejuvenator Restore or Maintain Your Lead Acid Batteries in Top Condition

More than 70% of Lead Acid batteries fail prematurely due to poor maintenance and or sulfation of the battery plates.
Now you can save and recover those batteries or just stop it happening.


The Battery Extra is designed to extend the service life of good lead acid batteries and to recover and recondition old or weak lead acid batteries typically found in cars, boats, golf carts, solar systems, fork trucks, RV's, motorhomes, electric vehicles and back-up power systems.

It will work on any lead acid battery or battery pack and we have a total of 5 different models designed to work with batteries and battery packs from 12 volts to 120 volts and up to 3,000Ah.

Each Battery Extra desulfator model is built and EMC tested to World standards and so will not interfere with any other electronic devices you may have fitted. They are very simple to fit via the connectors supplied. 

We are so confident in the ability of the Battery Extra to improve your batteries capacity we offer you a 100%, 60 day full money back guarantee, including the return costs.So in effect you are getting a free trial of our product, no ifs or buts, if it does not work for you, we give you your money back. Plus every desulfator has a 3 year product warranty, should your Battery Extra fail for any reason we will repair or replace it free of charge.

This is not a short term improvement; once your batteries have been recovered by leaving the unit attached it will continue to work, substantially extending the life of your batteries by keeping them in top condition.

This product works; see the customer comments on our testimonial page,now you can try it for yourself.

Note: The battery Extra is not a battery charger; it works in conjunction with your existing charger to maintain your batteries in top condition.

How the Battery Extra Works

The Battery Extra was developed to fully clean the plates of all the sulphate crystal build up, without the need for the damaging high voltage spikes, and return them to a fully working condition. It will also stop sulphate build-up on new batteries keeping them in top condition, ensuring they have the maximum possible life span.  

The Battery Extra can be permanently attached to any lead acid battery or battery pack. It uses a small amount of power from the battery to extend the life of new batteries. It also revives many weak or old batteries that are thought to be dead or need replacing. Alternatively you can de-sulphate one bad battery or set, and then just move it on to the next battery

The battery Extra works by creating a wide range of low voltage frequency signals that are designed to dissolve the sulphate crystals that build up on the plates of a lead acid battery. It is this sulphate build up that reduces the batteries capacity. Gently dissolving the sulphate crystals back into the electrolyte, lowers the internal resistance of the battery, and raises the specific gravity. This ensures that you keep, or return, your batteries to their maximum capacity. It works with no need for a special charger or any external power supply.

The Battery Extra will work on all types and brands of lead acid battery, including GEL, AGM, Maintenance Free, Deep Cycle, Sealed and Leisure. Depending on the condition of the batteries this can take from a couple of cycles to 20 or more.

Whilst the Battery Extra is successful in recovering all sulphated batteries it will not recover batteries with damaged or dried out cells.

Free Technical Support

When you buy a Battery Extra battery desulfator from us you are not just buying a product, you are buying into our technical expertise, you have the backing of engineers with many years of experience in the design and manufacture of batteries, and advanced battery management systems.

Besides the Battery Extra battery desulfator our technicians have designed and built battery management systems for hand held devices and many different electric vehicles including bikes, cars and motorcycles.

If you have any technical questions about the Battery Extra or just need advice or help with your batteries or battery pack just send us an e-mail to batteryextra@btconnect.com or phone us or use our contact form.

Check out our battery basics page for some basic information regarding the use, maintenance and selection of Lead Acid batteries.




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"After 12 Rounds And Recharges My 2012 Trojans Are Like New Again Great. I have also ordered another 3 of this product for friends since then and recommended this product to many others who have ordered"
Keith, Queensland

"Hi, thanks for the Battery Extra 36/48 it is working fine and saved my golf buggy batteries. This is another order for 12/24 for my sister as she was very impressed, so all good. Thanks"
Les, New South Wales.

"Saved me a fortune this was my last resort before I ordered new set of batteries a++++++".
Tony, England

Click to see more information on the Battery Extra for 36/48 volt golf cart batteries


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"Exactly 2-months since i installed the battery extra desulfator. Looks like the Battery Extra is living to its advertising. Battery imbalance seems fixed and I noticed battery bank is holding its charge better. Battery life is longer and LVD ATS is not being triggered since almost around 2 weeks now. Battery extra worked wonder"

"Your desulfators are working great on my clients' old solar battery banks"
Jeff, Philippines

"I run an off grid workshop, I thought my 2006 battery bank was down but still ok-- ha ha this has shown me how wrong I was, their life without the back-up 24v genny running has nearly doubled, and run time before inverter cuts off has doubled. Superb product, Am totally amazed."
Robin, Scotland

Click to see more information on the Battery Extra for solar battery banks


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"I am happy to confirm that the unit has returned some heavily sulphated batteries to around 80% and as such we are very happy."
Caravan and Camping Club UK

"I was ready to replace 3 batteries, assuming that they were defective and cost over 140 us dollars each. I have successfully rejuvenated all three batteries. Thank you for a good product"
John, Texas

"I have been using 2 of these units for the past 6 months. One is connected to my motorhome vehicle battery and the other connected to the leisure batteries all three batteries are at least 3 years old and have been improved by the use of the units that are hard wired into the battery circuits."
John, UK

Click to see more information on the Battery Extra for RV’s and campers


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"A client brought in two very distressed batteries. One was at 12.2 V and the other at 8.01 V. We put them on a charger, connected a battery desulfator to each battery and used charge controllers as a load. The desulfator and charge controller served as small loads to discharge the batteries. Today we tested them with two drills with a combined total of 700 Watts and they are both working fine."

"I bought a new battery for my car, last summer. I don't drive my car much during the week and the old battery hadn't lasted long. Recently my 'new' battery was failing to hold it's charge from one weekend to the next. At £100+ for a battery for my car, I had nothing to lose by trying this 'reconditioner'. I connected it and there's no doubt at all that it has revived the battery on my car. I don't know how it works; but it does. My car is a 1999 1.6 Audi A4 petrol; and this device hasn't damaged my car."
J.R. Richardson

Click to see more information on the Battery Extra for 12 volt batteries

Works With All Lead Acid Batteries

The Battery Extra works with lead acid batteries found in:

Solar Systems - Boats - Motorhomes - RV's - Electric Cars - Golf Buggies / carts - Forklift Trucks - Electric Bikes - Cars - Planes - Trucks - Back Up Power Supplies - Snowmobiles - Trains - Mobility vehicles - Farm vehicles - Electric fences

Unit M, Lammas Court, Lammas Road, Corby, Northants, NN17 5EZ United Kingdom.
TEL: +44 20 8743 2267 Email: batteryextra@btconnect.com