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48 Volt Battery Life Saver BLS-48A
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48 Volt On-Board Battery Life Saver Desulfator BLS-48A

Quick Overview

The Battey Life Saver A series operate full time and are designed for applications that frequently have discharges below 50% State Of Charge (SOC). The BLS-48A will rejuvenate old sulfated 48 volt battery systems with patented WAVE2 Technology and extends the average life of your batteries by 2-3 times. NOT A CHARGER

  • Availability

    In Stock

  • Product Brand

    Battery Life Saver

  • Model Number


  • Warranty

    5 Year


Works with 48 volt renewable energy battery banks or use with battery powered vehicles (Use the BLS-48N for 48 volt golf carts). Ideally mounted permanently to constantly keep the batteries in optimum condition and extend battery life. The system should be charged regularly. Can be used to rejuvenate batteries. Comes with 3/8" eye rings for attachment to the battery terminals.

The BLS A series operate full time and are designed for applications that frequently have discharges below 50% State Of Charge (SOC). The N series have have a shutoff point around 90% SOC and are designed for Electric Vehicles (EVs) or other applications with discharge metrics not exceeding 80% SOC. The BLS-48N is not intended for most wind and solar type applications which regularly experience deeper discharge levels and require a BLS A unit that will work full time. For EV applications you should use the BLS-48N.

Motobatt MBVM Voltage & Alternator Tester

Get a FREE Motobatt Mini Pocket Sized Voltage & Alternator Quick Tester with the purchase of a new BLS 48A Battery Life Saver. This is a $11.95 Value and is for a limited time only so BUY NOW! Coupon Code: Voltage.


Product Specs
Availability Note: In Stock
Model: BLS-48A
Brand: Battery Life Saver
Capacity 20Hr (Ah): No
Output Voltage (V): 48
Output Current (A): No
Dimensions (LxWxH - inches): 4.5 x 2 x 2.5
Weight (lb): 1
Warranty: 5 Year
Color: No

FAQs About This Product

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  • What Is Sulfation?

    Sulfation is the buildup of lead sulfate (PbSo4) crystals on your battery plates.

    Contrast image of built up of sulfate crystals on a battery.All lead acid batteries will suffer from the effects of sulfation. It is the unwanted byproduct of the natural double sulfate chemical reaction that generates electricity within the battery. When a battery is in use, the active material on your battery’s plates, lead and lead dioxide, react with the electrolyte or sulfuric acid (H2SO4) to generate electricity. During this process a thin layer of non-crystalline solid lead sulfate is deposited on the plates.

    During charging, this sulfate deposit is supposed to be converted back to lead dioxide and sulfuric acid restoring the battery back to its pre-discharged state. However, the process is not perfect. Incomplete charging or prolonged time left in a discharged state will convert the amorphous (non-crystalline) lead sulfate into a hardened crystalized form diminishing the ability of the battery to reach full charge.

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  • I have a 48V Easy Go Golf Cart with 3 year old batteries. I am not sure if I need the 48A or 48B version.Could you advise me please?
    You would want the BLS-48N as the 48B as been merged into the 48N. Generally the 48A would be used in renewable energy type applications.
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