Battery Rejuvenator

[Don S/V ILLusion]

Was wondering if anyone have any experience with these gadgets which claim to remove sulfate deposits with nanopulses. I have heard one person claim it works well but when asked how he measured battery capacity before/after, I was confused by his vagueness.Has anyone done any measurements or read any data to demonstrate their efficacy?

 

[sailaway78]

Same confusion

Think I read the same post, and came away feeling the same as you. I always consider these miracle things as snake oil until it is proven to me they work. Sometimes they do, but most times they don't.

 

[Rich Stidger]

Yes, I have made measurements.......

Last fall I built a published de-sulfator design with some modifications to handle my 460Ah bank. Prior to it's use my batteries seemed to drop in voltage fairly quickly with moderate loads.I applied the de-sulfator for about 2 months and made measurements each week. I have data and graphs that show a substantial (IMHO) benefit within the first 4 weeks. The measurement criteria I used was to measure the internal resistance of the batteries. Sulfation will increase that internal resistance.The technique I used was to apply a 100A load for a short time and then measure the loaded voltage. The difference between the open circuit voltage and the loaded voltage divided by the current yields the internal resistance. I found that the resistance decreased for the first 4 weeks and then further decrease was minimal. I have the data and graphs if anyone would like them.It is too early in this season for me to evaluate the battery performance in actual application.

 

[Stu Jackson]

Don, regardless of BOTH the claims and

actual measurements, consider the function it provides: the SAME as equalizing your batteries!!! How clever, so, if your battery manufacturer says it's OK to equalize, then ALL you have to do is either learn how to use your charger to do that (assuming you have a charger and it has that function) OR go buy yet another gizmo that does what your existing battery charger does already! Not a wise investment choice of "backups" I believe. Only you can best decide where your $$ get spent! FWIW, I did the same analysis of the house bank that Rich did with his "home-built," but after I equalized my house bank - man, what an improvement: the voltage stays up as the loads apply - usually a reasonably hour long draw from the fridge.

 

[Don S/V ILLusion]

thanks guys

That's interesting Rich. It seems intuitive that resistance would be a good indicator. Just wondering if or how you convert lowered resistance with that of increased battery capacity as I have no clue what the resistance figures would mean in value but I could interpret capacity % increase more meaningfully.I can and have equalized the bank periodically Stu with my Xantrex 40 but usually when convenient rather than when needed so I'm just trying to get better definition if this option is better for me, i.e., idiot-proof

 

[sailaway78]

A big difference??

Are we not talking about two entirely different things here, or is it just two ways to accomplish the same goal. De sulfation I know can do some good, and the equilizer in the charger will or should accomplish this. What is this re juvenator supposed to do. The same thing in a different way, or something entirely different. As I stated in a previous post, it sounds to good to be true, which to me usually means it is just snake oil.

 

[GuyT]

One big difference..

Would be water evaporation.To equalize the batteries is to boil and vent gas.These new desulfation boxes do not have to raise the batteries voltage up, they simply just remove it via high frequency pulsing like ultra sonic.Probably better than equalizing if they work IMHO.

 

[Rich Stidger]

More than you ever wanted to know .....

The attached link is a page that contains the most comprehensive listing of battery information that I have even seen. Go nuts.Specifically, the pulsing technology is explained by this following commercial link:http://www.europulse.com/pulse_technology/pulse_technology.htmAs I mentioned in reply #2 above, I have data in an Excel file that I would be happy to send to anyone who wishes to have it. I ran the de-sulfating process and tests on four 6V golf cart batteries and my test results show that over a 7 week time period the AVERAGE internal resistance of these batteries decreased by over 19%.A lower internal resistance is closely related to the sulfation level and batteries that have a low sulfation level also have a low internal impedance and are able to provide a higher capacity.Email me from the HOW directory and I will send you my data file.