19.5V 7.7A 150W 4.5X3.0mm AC Adapter For HP Power Adapter ZBook 15 15V, For Envy TouchSmart 15 17 Series

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  Batterymall.com offers a 2-year warranty coverage against manufacturer defects. View warranty information for many of our products.

About Account：

• Do I need to create an account to place an order?
  No need. You can place an order without an account on Batterymall.com. After payment is complete, your order will be processed. When the item leaves our warehouse, you will receive an automatic confirmation email with tracking information on the package. In addition, you can also view your order information through the "Order Inquiry" page without an account.
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About order:

• Will I be charged sales tax?
  Our website is not responsible for the taxation of any country, and buyers are required to declare taxes by themselves.
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  We accept Visa, MasterCard, Discover and American Express on Batterymall.com and other payment options in store.
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  Orders fulfilled through our warehouse will be shipped within 24 hours of receipt during business hours. Hours of operation may vary, but are based on Central Time, Monday through Friday, non-holidays.
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  Transaction information will be emailed to the address you provided in your shopping cart. An order confirmation will be sent followed by a shipping confirmation with tracking data.
  We recommend keeping all documentation for warranty purposes.

About batteries:

• How about the battery’s lasting or working time?
  Actually battery’s run-time is dependent on the device's total power consumption rate.
  It related to following factors:
  ●the speed of the laptop’s processor
  ●the amount of application software
  ●the number of wireless interface devices
  ●the brightness of the screen
  ●the amount of cycle that you’re using it for
• How to maintain battery life?
  We suggest that you do the battery activation at least once every two months, as it will extend the working time and life of your battery.
   If you won’t the battery for a month or longer, we suggest you charge the battery to 50%-80% capacity and then remove it from the laptop. Store it in a clean, dry place until you need it again.
• How long is the battery life?
  Our battery was tested and checked well before shipment. Under the normal using condition,the life of the lithium battery is about 500 time of cycles, so that usually as far as possible to use the fast end (5-7%) in charge, the average use time is 2 to 3 years.