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SP-25 SolarPulse 25 Watt Charger/Desulfator - PulseTech
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SP-25 SolarPulse 25 Watt Charger/Desulfator - PulseTech

Quick Overview

Most Effective 25-Watt Solar Charging System Available - Anywhere!
  • Availability

    In Stock

  • Product Brand


  • Model Number


  • Max AC Current (A)


  • Warranty


The 25-Watt SolarPulse SP-5 charger combines ReNew-IT Pulse Technology ® with an exceptional charging system. ReNew-It Technology safely prevents the main cause of battery problems and failure: sulfation buildup on lead-acid battery plates. Used extensively by the consumers and the U.S. Military worldwide for over ten years, this technology has been scientifically proven by two major universities to make batteries work harder and last longer than you ever thought possible. Pulse Tech makes three other SolarPulse models: 2 Watt (735X302), a 5-Watt (735X305), and a 6 Watt (735X613).
Product Specs
Availability Note: In Stock
Brand: PulseTech
Model: SP-25
Composition: Mono Crystalline
Nominal Voltage: 25
Max AC Current (A): 1.6
Max DC Current (A): No
Dimensions (LxWxH - inches): 21.25 x 17.75 x 0.13
Dimensions Deployed (LxWxH): No
Max Power (W): No
Max Power Voltage (Vmpp): 12
Open Circuit Voltage (Voc): No
Warranty: No
Weight (lb): 6.5

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 purchased the SP-5 SolarPulse 12 Volt 5 Watt Charger last year. I need to extend the length, do you have a compatible plug-in-play cable? 12 or 25 feet?
    No sir. They come with 17 feet of cable already. If more cable is needed, you can add up to 25 feet between the solar panel and the circuit box. There are 3 wires that are color coded so people cannot mix up the wires. You CANNOT cut the red and black wire between the circuit box and the battery. We recommend that the wire gauge added is 18 or thicker and all connections are soldered and shrink wrapped to reduce interference.
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