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PulseTech SolarPulse 12v 3 Watt Battery Solar Charger Maintainer

Was: $104.95
Sale Price: $84.95
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Product InformationStore Part Number: SP-3


Replaces: SP-2 (Part# 735x302)

The PulseTech SP-3 SolarPulse 3-Watt Solar Charger restores and maintains the normal loss of 12V lead-acid battery power on seldom used outdoor vehicles and equipment. SolarPulse's higher efficiency, higher quality crystalline silicon cells pack more power per square inch and have longer life than standard amorphous "thin film" solar cells for a sturdier smaller sized solar panel. Plastic coated panels are virtually indestructible and impervious to weather and age.

Like all SolarPulse models, the 3-Watt model utilizes unrivaled solar charging system combined with patented high frequency Pulse Technology pulsing circuit to ensure your battery will start when you need it. This patented Pulse Technology reverses the naturally occurring process of battery sulfation - the main cause of battery failure – and allows batteries to accept, store and release maximum power all the time extending battery life up to three times.

If you've used solar chargers before, you know it's important to choose the right solar panel for the amount of power you need and the size and place of the mounting location. In the past to get the power you need, you had to struggle with panels that are too big, too bulky and too fragile. With SolarPulse, you can get the power you need with the most installation options for your outdoor vehicles or equipment. Instead of a breakable glass coating, SolarPulse's solar panels are protected with a clear polyurethane plastic coating that makes them virtually indestructible and impervious to weather aging and damage from bumps and knocks. An LED light indicates charge so you know when it’s working. The LED shines brightly when the solar panel is in full sunlight and working at optimum level, dims when the panel is exposed to partial sunlight and goes out at night.


  • Max Output 240 mA - Approximately 0.96 to 1.4 amps a day output (dependent on light conditions)
  • Works on ANY 12V lead-acid battery including VRLA, AGM, gel and flooded cell
  • Maintains batteries at a full state of charge
  • Dramatically reduces jumpstarts
  • 30% smaller footprint than typical panels
  • Commercial grade solar panel is virtually indestructible
  • Patented Pulse Technology extends battery life up to 3 times
  • Supports sustainability programs
  • Reverse polarity protected
  • Ten-Year Limited Warranty


The SP-3 replaces the SP-2 (735x302) Battery Solar Charger. The SP-3 is a higher wattage and is only a slight increase in size!

Tech Specs

  • Dimensions (LxWxH): 9.45 x 4.7 x 0.25 in
  • Weight: 1.65 lb
  • Shipping Weight: 4 lb
  • Box-to-Lug Wire Length: 3 ft
  • Box-to-Panel Wire Length: 17 ft
  • Model: SP-3
  • Manufacturer: Pulse Tech
  • Desulphation Pulse: constant
  • Operating Voltage: 12 V
  • Output Current: 240 mA
  • Output Voltage, Bulk Charge: 16.5 VDC
  • Rated Power: 3 W
  • Manufacturer Part #: 735X453
  • UPC: 850444004658
  • Made In: India

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Reviews and Ratings

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Rated 5.00/5 Stars from 1 customer reviews.

Do you own the SP-3? Please, tell us what you think about it. It helps us provide you with better products. Please note that it may take up to 72 hours for your review to appear.

I have been a mechanic for over 25 yrs and used a lot of solar chargers for the trailers I maintain. At initial inspection, the charging panel appears to be one of the best constructed that I have used. This panel should last for years and the voltage regulator is a must for extended battery life.
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Written by on Sep 05, 2020. Verified Purchase — (11 of 11 customers found this review helpful

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