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Sinemax – Your Trusted Power Solutions Partner！

We specialize in R&D and manufacturing of high-performance automotive & off-grid inverters (12V/24V 400W-6000W) and lithium battery inverters (100W-1000W), offering both pure/modified sine wave technologies. 
Global Certifications: CE, ETL, ROHS
 Applications: Vehicles, solar systems, RVs, homes & outdoor tools 
Dual Manufacturing: China + Thailand for agile production 
Custom OEM/ODM: From R&D to verification & mass production 
Empowering global partners with innovative, competitive power solutions.
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Patents Globally
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Global Partners
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Product Guality

Our battery products are manufactured using advanced technology and high-quality materials to ensure stability and long lifespan. Whether used for lighting equipment, navigation tools, communication devices, or other outdoor gear, our batteries can provide lasting and reliable power supply.
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One-stop Service

To meet the needs of outdoor enthusiasts, we strive to provide convenient battery solutions. Our battery products are designed to be compact, portable, and easy to replace. We also offer a variety of battery specifications and capacities to meet the requirements of different devices.
Our History
  • 2023
  • 2020
  • 2016
  • 2008
  • 2003
  • 1998

  • The Brand Further Expanded Its Product Line

    The brand further expanded its product line and launched a multifunctional portable power series, including LED lighting, wireless charging, SOS distress signal, emergency power outage, flashlight, Bluetooth speaker, and other functions. The diverse functions of these products make the brand competitive in the market and further consolidate its position.

  • The Power Battery Portable Power Series Was Launched

    The power battery portable power series was launched, including lithium batteries, nickel-hydrogen batteries, lithium polymer batteries, and other models. These products have high energy density and long lifespan, meeting the high power supply requirements of users.

  • The Brand Started To Develop Fuel Cell Portable Power Supplies And Launched Two Models

    The brand started to develop fuel cell portable power supplies and launched two models: hydrogen fuel and methanol fuel. These products perform well in outdoor environments with long-term power supply shortages, providing users with lasting and reliable power support.

  • The Lithium Battery Portable Power Series Was Launched

    The lithium battery portable power series was launched, including small, large capacity, and fast charging models. The high quality and reliability of the products have been recognized by users, and the brand has gradually established a good reputation.

  • The First Solar Portable Power Product Was Launched

    The first solar portable power product was launched, which was warmly welcomed by the market. The product has efficient solar charging function and portable design, making it an ideal choice for outdoor enthusiasts.

  • The Brand Was Sstablished

    The brand was established, focusing on the research and production of outdoor portable power supplies. It established its own production base and research and development team, and began the brand's development journey.

Certifications And Awards

As an environmentally conscious company, we are committed to promoting sustainable development. Our battery products comply with environmental standards and are manufactured using recyclable materials to reduce environmental impact.

Whether you are a hiking enthusiast, camper, or mountain explorer, we have battery products that meet your needs. Let our batteries become your reliable companions for outdoor exploration, bringing you convenience and peace of mind!
Company Milestones

2016
SineMax was established, setting the stage for its journey in the inverter industry.
2017
Unveiled the initial inverter product, gaining market recognition for its quality.
2018
Enlarged production capacity to meet growing demands and boost market share.
2019
Achieved a major tech breakthrough, enhancing inverter efficiency significantly
2020
Entered international markets, marking a new era of global business expansion.
TESTIMONIALS
WHAT OUR CLIENTS SAY
  • “Their off grid pure sine power inverter compiance with (UL458)on first try. The dual China-Thailand production let us scale from 500 to 5,000 units/month without quality dips. More than a vendor – a power partner.”
    Jack Wilson-CEO Energy Solutions 26 March, 2025
  • “Ordered 8,000 custom 3000W inverters with our branding and 50°C thermal specs. Sinemax’s Thailand factory delivered zero defects while cutting lead times by 40%. Finally, an Asian supplier that understands ‘rush’ means yesterday!”

    Brian Murdoch– Supply Chain Director  11 December, 2024
  • ”Initially, concerns existed about Chinese factories' communication efficiency, but Sinemax's team addressed them with English - fluent engineers and daily production photos. When the first batch of 2,000 12V 3000W inverters arrived, three had scratched casings. They swiftly air - freighted replacements within 72 hours - faster than our local suppliers.“ Richard Smith-Outback Mining Tech 09May, 2025
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    Add: Building No.3, Liu Fang Science Park, No.1 Fuda Road, Suzhou Industrial Park, Jiangsu, China
    contact: kelly
    Tel: 0512-62797076
    Email: sales@sinemax.cn
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