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SP-5 SolarPulse 12 Volt 5 Watt Charger
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SP-5 SolarPulse 12 Volt 5 Watt Charger by PulseTech

Quick Overview

Most Effective 5-Watt Solar Charging System Available - Anywhere! The SP-5 is up to 50% smaller than its rivals.
  • Availability

    In Stock

  • Product Brand


  • Model Number


  • Max Power (W)


  • Max AC Current (A)

    350 mAh

  • Warranty

    5 Year


Like all of the SolarPulse models, the SP-5 Watt model utilizes PulseTech's unrivaled solar charging system combined with their patented optimized high frequency pulsing circuit to ensure your batteries will accept, store and release maximum power and last up to five times longer. The ReNew-IT Pulse Technology reverses the naturally occurring process of battery sulfation - the main cause of battery failure.

PulseTech SP-5 Panel Features

  • Up to 50% smaller footprint than competing panels
  • Works on ANY 12V lead-acid battery
  • Maintains batteries at full state of charge
  • Commercial grade solar panel is virtually indestructible
  • Patented Pulse Technology extends battery life up to 5X
  • Supports sustainability programs
  • Reverse polarity protected
  • Five-Year Limited Warranty

Used extensively by consumers worldwide and the U.S. Military for over twenty-five years, the SP-5 (735X305) technology has been scientifically proven by two major universities and TACOM Life Cycle Management Command (division of the US military) to make batteries work harder and last longer than you ever thought possible. Ideal for virtually any kind of vehicle and equipment in areas without access to electrical power, including motor carriers, rail cars, sailboats, docks, telecom, recreational vehicles, and much more. There are three other 12V SolarPulse models available: SP-2 Watt (735X302), a SP-6 Watt ERV unit (735X613), and a 25 Watt (735X325). The 6-watt model is ideal for emergency rescue and law enforcement vehicles because it has a unique rectangular solar panel designed to easily mount on any light bar.

This uniquely designed solar panel is made of highly efficient proven crystalline silicon photovoltaic cells, encapsulated with a clear polyurethane plastic coating (instead of a breakable glass coating), and mounted on a laminated aluminum substrate back plate that is less than 1/4” thick. This makes the panel virtually indestructible, impervious to weather and resistant to damage.

Product Specs
Availability Note: In Stock
Brand: PulseTech
Model: SP-5 (735X305), NSN: 6130-01-446-7154
Composition: Mono Crystalline
Nominal Voltage: 12
Max AC Current (A): 350 mAh
Max DC Current (A): No
Dimensions (LxWxH - inches): 8.8 x 8.8 x 0.25 (223 x 223 x 6mm)
Dimensions Deployed (LxWxH): same
Max Power (W): 5
Max Power Voltage (Vmpp): 16.5
Open Circuit Voltage (Voc): No
Warranty: 5 Year
Weight (lb): 1.65
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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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  • Will this keep my RV battery running. I only use a couple lights at night and in the early morning. Also my main concern is that it keeps the pump running for the sink, toilet and shower. The trailer is a small 13 foot Scamp.
    I do not believe this is enough power for what you want to operate. This 5 watt panel is designed to charge and maintain small batteries and maintain larger batteries. It conditions and desulfates your batteries allowing them to last 2-3x longer than without.
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