Pulse Tech

SolarPulse® SP-3 3-Watt Solar Battery Charger & Maintainer

SolarPulse® SP-3 3-Watt Solar Battery Charger & Maintainer

Regular price $109.50 USD
Regular price $99.50 USD Sale price $109.50 USD
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Part #: 735X453

Prevent premature battery failure with a high-performance, 3-watt solar battery charger, maintainer, and battery desulfator engineered to keep 12V lead-acid batteries fully charged, conditioned, and ready for reliable starting power. Designed for cars, trucks, trailers, motorcycles, boats, RVs, ATVs, UTVs, generators, and seasonal equipment, the SP-3 combines renewable solar charging with PulseTech’s patented Pulse Technology to help prevent sulfation, recover battery performance, and extend battery life up to 3X.

Unlike ordinary solar trickle chargers, the SolarPulse SP-3 continuously conditions and maintains batteries while helping reverse sulfate buildup that causes premature battery failure. This advanced solar battery maintenance system delivers dependable off-grid battery charging without the risk of overcharging, overheating, or damaging the battery during long-term storage.

Built for year-round outdoor performance, the SP-3 solar battery charger is weather-resistant, spark-proof, and maintenance-free, making it ideal for stored vehicles, fleet equipment, trailers, powersports vehicles, marine applications, agricultural equipment, and backup generators. Whether you need a solar battery maintainer for parked vehicles, seasonal storage, or remote equipment reliability, the SP-3 helps eliminate dead batteries and reduce costly replacements.

Problems This Product Solves:

  • Prevents dead batteries during storage or inactivity
  • Helps reduce battery replacements by minimizing sulfation and over-discharge
  • Maintains battery capacity for stronger starts and improved reliability
  • Provides off-grid solar battery maintenance using renewable energy
  • Keeps stored vehicles and equipment ready for immediate use
  • Supports long-term battery preservation without AC power access

Key Features:

  • 3-Watt Solar Battery Charger & Maintainer for 12V lead-acid batteries
  • Compatible with cars, trucks, motorcycles, RVs, trailers, boats, ATVs, UTVs, generators, and equipment
  • Patented Pulse Technology helps reverse sulfation and restore battery performance
  • Solar-powered battery conditioning for long-term battery health
  • Fully automatic battery maintenance with no overcharging risk
  • Durable weatherproof solar panel built for outdoor environments
  • Maintenance-free plug-and-play installation
  • Ideal for vehicle storage, fleet maintenance, marine use, and seasonal equipment

What Sets PulseTech Apart?

Unlike generic solar trickle chargers and standard solar battery maintainers, PulseTech solar charging systems are engineered with patented Pulse Technology that actively improves battery condition while maintaining charge levels.

PulseTech products are trusted across commercial, fleet, military, and powersports industries because they deliver:

  • Military-tested durability and reliability
  • Advanced Pulse Technology for extending battery service life up to 3X
  • Proven reduction in battery downtime and premature failures
  • Long-term savings through improved battery performance and fewer replacements
  • Reliable solar battery maintenance for stored and off-grid vehicles
  • Works with all 12-Volt lead-acid batteries including VRLA, AGM, gel and flooded cell
  • Commercial-grade crystalline cells are 30% smaller per watt than and twice as efficient as typical panels
  • Maintains the normal loss of battery power on seldom-used vehicles and equipment
  • Patented Pulse Technology circuit continuously desulfates the battery 
  • Virtually indestructible commercial design
  • Dramatically reduces jumpstarts
  • Maintains the battery indefinitely without the danger of overcharging or overheating
  • Reverse polarity protected
  • LED indicates unit is working
  • Ten-Year Limited Warranty

Model Name: SolarPulse 12V Solar Charger Maintainer, 3-Watt
Model Number: SP-3
Part Number: 735X453
NSN: 6130-01-388-0245

Input Electrical
Solar Powered

Output Electrical
Output Current: 240 mA
Output Voltage, Bulk Charge: 16.5 V dc

Mechanical/Physical Characteristics
Circuit Box Dimensions: 3.4" L x 2.25" W x 1.5" H
Solar Panel Dimensions: 4.7" L x 9.45" W x 0.25" H
Weight: 1.65lbs

Shipping Weight: 2.2lbs

Box to Lug Wire Length: 3'
Box to Panel Wire Length: 17'
Quick Disconnect Between Solar Panel & Circuit Box

Environmental
Operating Temperature: 0°F to 130°F
Storage Temperature: 0°F to 150°F

Indicator
LED shines brightly when the solar panel is in full sunlight and fades during partial sunlight

Warranty
10-Year Limited Warranty

Circuit box, 3' box-to-lug wire, and a 17' box-to-panel wire.
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WHY DO YOU NEED A SOLAR CHARGER

  • Sustainable Power: Harness the sun's energy to keep your batteries charged

  • Extended Battery Life: Maintain and prolong your battery's lifespan

  • Reliable Performance: Ensure your power needs are always met

  • Effortless Maintenance: Let the charger do the work for you

  • Robust Design: Built to withstand outdoor conditions