1.Fully charge a new battery before use.

2.For a new battery, repeat full charge and discharge 2-3 times.

3.Do not charge immediately after the battery is dead, as it will last a long time. Allow the battery to cool in about 10-20 minutes before charging. (Especially when used in Max mode and the battery is hot)

4.If the battery is not used for a long time, it will discharge naturally, so please fully charge it before using it again. If you need to store it for a long time (1 month or more), we recommend charging it up to 40% -60%.
Fully charge the battery every 2-3 months after it has been completely used up.

5.Store this product in a cool and dry environment. Keep away from heat sources, fire, flammable and explosive gases and liquids. It may cause battery leakage, heat generation, smoke generation, fire or explosion.

6.Do not allow metal objects to enter the battery box during storage of lithium batteries. It may cause leakage, heat generation, smoke, fire or explosion.

7.Do not disassemble, modify, or shock the battery.

• Our 60-Days Money Back Guarantee Warranty*

  (Exchange or Refund) provides coverage for manufacturing defects and shipping damage only.

  Photo or Video confirmation is required.(a bird's eye photo, and a close-up of the problem)

  What is not covered by Warranty?

  Normal wear and tear
  Misuse, lack of care, mishandling, accidental abuse
  Abnormal use of product
  Damage caused by improper or unauthorized repair or maintenance
  Product that has been modified or altered
  items that have been abused, burned and damaged in any form.

  Most defective orders are replaced free of charge or issue refund only after evidence confirmation is provided.

  (This policy will not cover items that had been purchased from a different seller. Please contact the seller directly.)

  Please leave your ebayID or order transaction number in the email, otherwise we cannot find your order information.

  5 YEARS LIMITED WARRANTY*

  LIMITED WARRANTY STATEMENT FOR wy-forever

  If your order becomes defective due to faulty materials or workmanship within a period of 5 years from the date of purchase, we guarantee to do one of the following, though you may be required to pay shipping costs for return of the product to us and for shipment of the repaired/replaced product to you:

  Replace or repair all defective parts, or,
  Repair a defective unit, or,
  Replace the unit with a new or reconditioned unit.

  This Limited Warranty is subject to the following conditions:

  Battery packs are guaranteed for a 12-month period only from the date of original purchase.
  The item has not been misused, abused, neglected, altered, modified or repaired by anyone other.
  Defect or damage to the battery has not resulted from use of accessories or tools that are inappropriate for normal operation of the battery , or that are not designed for use with your tool.
  The item has been subjected to fair wear and tear.
  The item has not been used for trade or professional purposes.
  The item has not been used for rental purposes.
  The item has not sustained damage through foreign objects, substances or accidents.
   
  Your limited warranty does not cover:

  Natural wear and tear caused by use in accordance with operating instructions.
  Unauthorized/improper maintenance/handling or overload is excluded from this warranty as are accessories such as adapter, etc.

  This limited warranty does not replace but is in addition to your statutory rights. This warranty does not apply to accessories supplied with the tool. This limited warranty applies only to the original purchaser and may not be transferred. All repairs and replacement will be covered by the limited warranty for the balance of the warranty period from the date of the original purchase.

  
  Thank you for considering wy-forever products.

   

• Our working time is: 09:00 AM-18:30 PM(Chinese time from Monday to Saturday).All emails will be answered within 24 hours except weekends and holidays.