Battery Life Savers BLS-48A Battery Desulphator Rejuvenator


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What is the BLS?

An electronic device that brings old “dead” batteries back to life, restores functioning batteries to a like new condition, and keeps batteries from losing capacity and life due to the build-up of lead sulfate. Simply connect the BLS directly to the battery system and use the system as normal.


For 48 volt AE battery systems and electric vehicles. Use the BLS-48N for 48 volt golf carts.


Weight: 1 pound (.45 kg)
Dimensions: 4 x 2 x 2.5 inches (10.2 x 5 x 6.35 cm)
Current Draw: 250mA
Shut off voltage: N?A
Connection Type: Eye Rings
Wire Length: 2.5 ft, spans 5 ft.

  • Easy to use, attach it & forget it 
  • Reverse Polarity protected
  • Sturdy & built to last, weather resistant
  • Easy, do-it-yourself installation
  • Only one BLS needed per battery system
  • Double, in some cases triple battery life
  • Rejuvenate old batteries
  • Protect the environment for harmful battery waste
  • Environmentally Friendly

The BLS uses patented Wave² Technology to handle the problem of sulfate build-up in lead acid batteries. It sends a signal that matches the frequency of the sulfate crystals, causing them to dissolve into lead and sulfuric acid. This restores the battery to a like new condition and/or extends the life of the battery.

Using the BLS

Connect the BLS directly to the batteries, in parallel with the charging source, the red wire to the main positive battery terminal and the black/red wire to the main negative battery terminal. Then use the battery system as normal.

5 Year Limited Warranty

This product is shipped from one of our warehouses in Northern California. Orders placed after 12 p.m. will typically ship the following business day. To see an estimate of our delivery times, click here.

Returns & Replacements
You may return most unused products to us for a refund or replacement within 30 days of receipt. Items must be in new re-sellable condition with all original packaging, paperwork and accessories. For your protection, please send returns via a traceable method. We are not responsible for lost or missing returns without tracking information. Return freight and shipping is non-refundable. Products that qualified for free shipping will be credited the product price minus shipping costs. Unless otherwise requested, back orders will be refund to assure a you receive your order within an acceptable time.

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