Battery De-Sulfater Testimonials

My name is Steve Lundquist and I am the manager at Storage Battery Systems for our central Wisconsin location located in Greenville WI. Storage Battery Systems is one of the largest battery specialist in the Midwest with 3 locations. Two in WI and one in IL.

I have been treating batteries with Battery De-Mister since 1999 and currently use it today which is March 1st 2013 so we have been using it now for 14 years. I have treated almost every type of non sealed lead acid battery there is from motorcycle batteries, to RV, Boat, Golf, Solar, Scrubber, Sweeper J-250’s, L-16’s all the way up to 8 thousand dollar forklift batteries and I’m here to tell you that Battery De-Mister works.

I can truly say that of all the different types of batteries that we have treated we have not had any warranty issues what so ever, but I must say that before we add Battery De-Mister to any battery we always check each cell to make sure we have a good battery to start with. As in all cases you always get a few new batteries here and there from the manufacture that have a weak cell. Battery De-Mister will not help this.

All the customers that buy are batteries treated with the De-Mister are very very satisfied. It cost them more per battery but the batteries last much longer, have much less maintenance, no warranty issues which in the end saves them a bunch of money. It also helps us to because although we might not sell as many batteries as we would if they were not treated with Battery De-Mister we don’t have to worry about losing that customer to one of are competitors and that is the bottom line for me.

I guess I can see why the battery manufactures do not use or endorse this product because they probably look at it that they would eventuality end up selling less batteries to there existing customers and the more batteries they sell the more money they make. That is there bottom line. For us it is keeping our customers and not losing them to are competitors. That is are bottom line.

Storage Battery Systems
Steve Lundquist

I’m Felix Vargas from the beautiful Island of Puerto Rico. I have owned a repair shop since 2010. We repair Generators, Welders and do Battery Bank backup repair and maintenance for the solar market. The main problem with solar batteries is sulfation and water loss.

We have a few desulfater charging stations which work fine but we were looking for something to complement these charging stations. We starting buying and testing different De-Sulfater additives. The misinformation and no MSDS from most suppliers alerted me to not trust these kind of products claims so we had to test the additives first to see if they did what they claimed before I would refer these products to my customers.

In the summer of 2018 I found out about ThermOil products and contacted Terry. I had a ton of questions and Terry never surrendered. I was a little skeptical about never hearing about ThermOil and started searching for his legality USPTO (United States Patent and Trademark Office) and the products evidence. 

I found that Thermoil was registered with the USPTO and has been in business since 1992. I then purchased some Battery De-Sulfater product and started doing my own experiments.  Some worked some failed but the ones that failed to bring the batteries back to life were due to the total misuse of the batteries being completely dead. Nothing could of brought these batteries back.

Now in 2020 after 2 years of testing this product and realizing that every battery cannot be rejuvenated I now have enough knowledge to offer this battery additive product Battery De-Sulfater and correctly diagnose my customer’s battery banks. 

Since I have had so much success with Thermoil additives Battery De-Sulfater & Battery De-Mister the last 2 years I have expanded my market to include scissor lifts and other equipment that use deep cycle batteries. I’m working now with Equipment Rental companies offering my service using the ThermOil products.

My best promotion is a customer correctly knowing how to care for their batteries. I don’t offer miracles. I diagnose the bank condition. I explain why the battery banks are not functioning correctly and what they really need to do. I explain how they abuse their batteries and equipment and how to protect their investment. 

Some of these customers never think (or the stores that sold batteries and solar equipment) that these batteries have a limited life and the warranties offered depend on the correct use and maintenance of the equipment. Lack of watering, corrosion and sulfation is the main reason for battery failure hence the reason from my service calls. 

The customers who fail to water and clean corrosion I offer them the Battery De-Mister to solve this problem. The customers who fail to charge the batteries properly and get sulfation I offer them the Battery De-Sulfater to solve this problem.

I’m very impressed that these products are so easy to use and finally a product that really works. Thank you Thermoil.

Felix Vargas


Hi Terry,

Regarding your ThermOil Battery De-Sulfater.

We have recently used the Battery De-Sulfater that you have sent me and the results were rather very impressive. We have learnt that it is very important to understand the chemistry of batteries to ensure the best results. Below is a detail chart on the experiments we have done as well as some results on starting batteries. We were using 20ml (20cc) per cell (or .67 oz) for starting batteries up and until about 55ah – 60ah. Meaning 120ml (120cc) (or 4 oz) per battery. Then 30ml (30cc) per cell (or 1 oz) for starting batteries from 60ah – 100ah Meaning 180ml (180cc) (or 6 oz) per battery.

For truck (not sure what you guys calls it, maybe “Lorries” or “Haulers” ?) batteries We were using 40ml (40cc) (or 1.35 oz) per cell for starting batteries between 120ah – 180ah. Meaning 240ml (240cc) (or 8.1 oz) per battery. We do keep data sheets (job cards) for each battery as part of our quality control process. This is often used for our own internal research and for quality control. . . What is common and strange is that once we’ve added your product to the batteries after topping it up with water etc. We noticed that the CCA would increase by about 5% ~ 7%. Not a lot I guess, but bare in mind this is before charging the batteries. This happens with in about 5min! Also about 12hours later, the black sulphated sulphuric acid (battery water) from the sulphated batteries would become clear! We have noticed that the CCA of the batteries would naturally increase between 30% to about 50%. The voltage float would remain constantly at 12,8 volts. This happens about 5 days after the batteries have been charged.

Further on vehicles we fit batteries for testing and experimental purposes, when we took readings on Monday afternoon on two vehicles that has Battery De-Sulfater in it, we’ve noticed that the CCA has been fully restored to what it was according to factory specs when the battery originally came of the factory line. The voltage float stands currently at 13volts after the vehicle’s engine has been switched off for at least 12hours.

I am really very impressed and think that you are blessed with an amazing product. Well done on ThermOil’s Battery De-Sulfater. My God blessed you with lots of success.gogreen-300x94

My wish is that companies (like yours and mine) would make a great impact to combat global warming as we reduce the carbon foot print of battery manufacturing. Recondition or extending the life of a battery (for at least one more life cycle) will make a great impact to do our bit to help reduce global warming.

Yours truly
Hamzah Verster

If you don’t have time to do it right the first time, when will you have time to do it over?

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