The full transcript of his Facebook post:

Here is another of my success stories, I purchased a non running, used Linde H30D Diesel forklift in 2009, when it was delivered the battery was quite flat and would not crank over/start. 

As the battery was already 4-5 years old (see pic of date code) I was thinking $180 for a new battery was going to hurt a little... 

However, It was placed on SLOW charge overnight with my trusty Desulphator connected, and the next day installed it back in and sure enough, after a fair cranking to get the fuel up she fired up !!!

Anyway, 5 years later the same battery is still in this fork and still going strong...

I put the desulfator and charger on 2-3 times a year for 1 week on "float" charge as this fork doesn't get used much.

Not too shabby for a 10-11 year old battery!!!

Note from Infinitum:

Tony Castleman left us a note on our Facebook Page yesterday to update us on how he is still benefiting from the desulfator units he purchased from us in November 2007. (Do excuse him if he got the date of his purchase wrong as it was certainly a very long time ago but we kept the record of his purchase). So not only is has his batteries lasted so long, the unit he purchased is still working almost 8-years later. 

The picture (right)  is of an original-equipment Volkswagen Transporter 2.5-litre turbo-diesel van battery, having been used daily for the last 8 years (mostly for short-journey work where the alternator rarely is able to fully recharge the battery). In our moderate UK climate, supplemented with occasional use of a smart-charger to help maintain its performance, it has lasted very well indeed.

But after 8 years of daily use, this original Varta 72Ah 700CCA battery was beginning to show reduced capacity and finally struggling a little to start the van. It had served me well, so I simply replaced it with a new one.

As an experiment, I removed the label and topped-up the fluid level of this original old "maintenance free" Varta battery with distilled water, and extensively charged / desulfated / reconditioned it using a smart-charger. It showed a little improvement - returning slightly more than 500CCA when tested.

The DHC battery tester I used here has settings to compensate for these different European test standards (EN, SAE, IEC, DIN and CA/MCA): The 500CCA reading taken before and 733CCA measurements taken after desulfating with the Infinitum were already compensated to correctly correspond directly to the original EN/SAE test standard of this 640CCA labelled battery. 

The performance (capacity) improvement of 733CCA SAE taken is therefore a genuine “like for like” comparison against the original 640CCA SAE stated capacity of this battery. The test was repeated several times over several days after charging/desulfating to verify the measurement, and re-checked using the alternative/labelled DIN test standard: It remains correct. 

The picture (left) shows this same battery after a further 4 weeks of then being left on trickle/pulse charge with the Ctek smart charger - but with your Infinitum desulfator then also added in parallel. Note the label showing the original 640A SAE cold-cranking capability of this battery... and the result of the digital test now showing an incredible 733CCA after desulfation with the infinitum - that's significantly better than new! Surprised? I was!

Keith Burton
Bedfordshire, United Kingdom