It seems like you're looking for information on sourcing a battery for the Microsoft Surface RT1/1516, possibly from a factory or wholesaler. Here are a few things you should consider:

1. Battery Compatibility

• The Surface RT1 (also known as Surface RT 1st generation) uses a specific battery model. For replacement parts, you should make sure that the battery is designed for the Surface RT series.

  The part number for the Surface RT battery is typically P21GK3, which is likely the OEM (original equipment manufacturer) battery. You should verify that the battery matches the specs of your Surface RT.

  2.Factory Purchasing

  • If you're looking for direct factory sourcing (bulk purchases), it’s important to:

    • Verify the manufacturer's reputation and certifications.

    • Ensure the product quality and compliance with safety standards.

    • Discuss pricing, shipping terms, and after-sales support.

    
    

  3. Things to Check Before Purchasing

  • Battery Capacity: Ensure the replacement battery has the same voltage and capacity (mAh or Wh) as the original.

  • Warranty: Look for suppliers offering a warranty for their batteries to ensure you can replace defective units.

  • Custom Orders: Some factories allow custom labeling or branding if you're planning to sell the batteries under your own company name.

  If you need specific factory contacts or more detailed steps on how to approach a wholesale supplier, feel free to let me know!