Lenovo External BatteryCharger User Manual page 64

If required, your Service Provider will provide repair or exchange service
depending on the type of warranty service specified for your product and the
available service. Scheduling of service will depend upon the time of your call,
parts availability, and other factors.
A warranty period of 1 year on parts and 1 year on labor means that Lenovo
provides warranty service during the first year of the warranty period (or a
longer period as required by law).
Types of Warranty Service
1. Customer Replaceable Unit ("CRU") Service
Under CRU Service, your Service Provider will ship CRUs to you for you to
install. Most CRUs are easy to install whereas others may require some
technical skill and tools. CRU information and replacement instructions are
shipped with your product and are available from Lenovo at any time upon
request. You may request that a Service Provider install some CRUs under one
of the other types of warranty service designated for your product. Installation
of external CRUs (such as mice, keyboards, or monitors) is your responsibility.
Lenovo specifies in the materials shipped with a replacement CRU whether the
defective CRU must be returned. When return is required, 1) return
instructions, a prepaid return shipping label, and a container are included with
the replacement CRU, and 2) you may be charged for the replacement CRU if
your Service Provider does not receive the defective CRU within thirty (30)
days of your receipt of the replacement.
2. On-site Service
Under On-Site Service, your Service Provider will either repair or exchange the
product at your location. You must provide a suitable working area to allow
disassembly and reassembly of the Lenovo product. For some products, certain
repairs may require your Service Provider to send the product to a designated
service center.
3. Courier or Depot Service
Under Courier or Depot Service, your product will be repaired or exchanged at
a designated service center, with shipping arranged by your Service Provider.
You are responsible for disconnecting the product. A shipping container will be
provided to you for you to return your product to a designated service center.
A courier will pick up your product and deliver it to the designated service
center. Following its repair or exchange, the service center will arrange the
return delivery of the product to you.
4. Customer Carry-In or Mail-In Service
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External Battery Charger: User's Guide