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Details about  BLS-12N Battery Desulfator/Rejuvenator-Great for Boat/Trolling Motor Batteries

BLS-12N Battery Desulfator/Rejuvenator-Great for Boat/Trolling Motor Batteries
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Item Information

Item condition:
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8 available / 7 sold
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US $99.95
Approximately C $126.73(including shipping)
29 watching
Located in United States
60-day returns
New condition
US $46.50 (approx. C $58.96) USPS Priority Mail International | See details
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Item location:
Clearwater Beach, Florida, United States
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Last updated on  Aug 20, 2014 22:26:49 EDT  View all revisions

Item specifics

New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is ... Read moreabout the condition
Country of Manufacture: United States
UPC: 609465319834

BLS-12N - General Battery Desulfator / Rejuvenator
Great for Trolling Motors and Electric Boat Batteries (12 Volt)


Works with all 12 volt lead-acid battery systems - Flooded, GEL, AGM.

This model is not for Golf Carts. See our other models for Golf Carts - See models BLS-36N or BLS-48N

Also ideal for use with a battery charger to rejuvenate unusable batteries.

Comes with eye ring type battery connectors for attachment.

Small, compact size - 4" x 2" x 2.5"

Maximum current draw - 120 mA  

1 ft. wire length, spans 2 ft.

Equipped with low-voltage cut-off circuit.

For 12 volt battery applications, can be used on a single battery or multiple batteries.

Easy to use, attach it and forget it.

Environmentally Freindly

Made in USA

This is the best BLS model to rejuvenate and maintain new or old 12 volt batteries.


See what BLS Customers are saying about the Battery Life Saver!
It's hard to measure how well this is working but the 36 month batteries are still going strong at 48 months. John Artz, Solar Customer
I wanted to let you know that I am really surprised, you have a gizmo that actually works! I purchased the BLS because of the guarantee, but I really didn't think it would work. After using the BLS on my golf cart for a month, the readings are off the charts and the cart is running great. Thank you very much. Irving Hill, Skeptical from Sun City AZ
I bought a new cart and wanted to know if I can use my BLS from my old cart. By using the BLS, I was able to get 38 months out of batteries that usually only last for 18 months. My friend also installed a BLS, we are now in a competition to see who's batteries will last longer.
Dan Engtrsom, AZ

I know now the Battery Life Saver really works! I tried it on my golf cart with 3 year old batteries. After a month of using the Battery Life Saver, my batteries improved from 50% to 100%. I am going to recommend this to every one of my customers.Phil Pixler, Phil’s Karts, Salina, KS

"Today I ordered a second battery lifesaver for my new Club Car Precedent. I had one for several years on my older 2001 Club Car which I recently sold with the device installed. This product kept my batteries in great condition. Conferring with a relative who is an electrical engineer confirmed what you advertise. I am looking forward to shorter charging times and longer battery life again."George Bartolomeo, The Villages, Florida




Battery Life Saver - BLS-12N

Works with all types of  12 volt lead-acid batteries - flooded, GEL & AGM batteries.

Don't buy new batteries and spend thousands of dollars, let the Battery Life Saver (BLS) bring those old batteries back to life.

Order TODAY and start bringing those old, tired batteries back to life.


Model: BLS-12N

  • Brings old and weak batteries back to life.
  • Maintains working batteries in optimal condition.
  • Extends battery life by preventing the build-up of lead sulfate
  • 120 Day Money Back Guarantee
  • 5 Limited Year Warranty

Free Shipping: (USA Only)

Order Today - $99.95

5-Year Limited Warranty - 120 Day Money-Back Guarantee! No Questions Asked.

Why is the BLS needed?

75% to 80% of lead acid batteries fail prematurely because of formation of lead sulfate on the plates. These crystals cause batteries to become unusable at approximately one-third of their natural life. The BLS dissolves the lead sulfate crystals.

Why is the Battery Life Saver electronic device "The Most Effective Desulfator Available"?

There are a number of other electronic products available on the Internet which claim to be desulfators. The ones known to me are “Pulse-Tech,” “De-500,” “Nano-tech,” “BES Technologies,” and home-made circuits as described by Alister Couper. All of these products are best described as pulsers and are based on an approximation of a Dirac delta function.

These have a serious short-coming in that it is impossible to produce a Dirac delta in the physical universe. It is approximated by a very rapid rise of voltage in the leading edge of the pulse and generation of a high voltage pulse. To the degree that these products can produce a rapidly rising high voltage spike, they can be only somewhat effective at exciting natural frequencies of crystals. However, the pulses are of such short durations that very little power can be delivered to the crystal to cause it to dissolve -- again power is the area under the curve.

The Battery Life Saver electronic device square wave signal can excite all of the frequencies above it and is easy to produce, in that it is a real function, meaning it exists in the physical universe. The square wave signal is generally a low voltage signal, usually less than one volt with most batteries, and delivers enough power to cause the crystals to dissolve.

How do I use it?

The best way to use the BLS is to connect it and forget it. Connect the red wire to the positive battery terminal of the first battery and the black wire to the negative terminal of the last battery. If you need to rejuvenate your batteries, connect the BLS and use the system as normal. Every time the system is charged and discharged the BLS will be gradually rejuvenating the batteries. Depending on the size and condition of your battery system it could take a week to 5 weeks to completely rejuvenate a system.

Benefits of Using the BLS:

It makes old batteries as good as new. It keeps new batteries like new, saving time and money. With the BLS, more power is available from your battery and you need less power to charge it. By reducing the number of batteries that get thrown away and put in landfills, the BLS protects the environment.

How does it Work?

Using our patented square wave technology, the BLS sends a frequency signal to each crystal of lead sulfate, causing it to dissolve into lead and sulfuric acid. This restores the battery to its original condition and allows the electrical charge to be drawn from the battery.

Other BLS Models available for: Golf Carts • Electric Vehicles • Solar/Wind Banks • Industrial Equipment • Marine • RV • Cell Towers - Call us today at: (800) 993-7886

Order Today - $99.95
Free Shipping: (USA Only)

5-Year Limited Warranty - 120 Day Money-Back Guarantee! No Questions Asked.



Please feel free to call us at 800-993-7886 with any questions.
The Battery Life Saver electronic device (BLS) was invented in 2002 by a Florida resident, Charles Van Breemen. It was developed because he was tired of batteries failing when he needed them most. He also wanted to protect the environment from harmful battery waste. Awarded a Patent in 2008.

Questions and answers about this item

No questions or answers have been posted about this item.

Seller assumes all responsibility for this listing.

Shipping and handling

Item location: Clearwater Beach, Florida, United States
Shipping to: Worldwide
Domestic handling time
Will usually ship within 2 business days of receiving cleared payment - opens in a new window or tab.

Return policy

Item must be returned within
Refund will be given as
60 days after the buyer receives it
Money Back
The buyer is responsible for return shipping costs.

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