You will need one of the following documents:
College Students / Parents
  • Instant Online Verification
  • Dated Student ID from the current semester or school year
  • Course Schedule
  • Registration Receipt for this semester
  • Letter of Enrollment on school letterhead.
K-12 Student / Parents
  • Report Card
  • Dated Student ID from the current semester or school year
  • Registration Receipt
  • Letter of Enrollment on school letterhead
Teachers, Faculty, or Staff
  • Link to your faculty web page
  • Current Faculty ID
  • Letter of Employment on school letterhead
  • Pay Stub (cross out confidential information)
Home School
  • Membership in Home School Association
  • Receipt for Home School Curriculum
  • Letter of intent to home school from a state agency
School Districts, Colleges, Universities
  • Your Purchase Order
Non-Profit Organizations
  • Copy of IRS 501(c)3 form
  • IRS letter stating that you are a 501(c)3
Lenovo
Product ID: 1642242 | Mfg Part #: 4X50K14091
$136.96

Ships in 1-2 Business Days


The 6-cell ThinkPad battery 77+ is a replacement/spare battery for P50 systems. The battery is rechargeable and can be used as a replacement or as a convenient spare for mobile workstation ThinkPad P50 systems. This battery is powered by Lithium-ion technology and has a safeguard chip which authenticates with Lenovo systems. The battery lasts on average 90 Watt-hours and utilises over-discharge protection to ensure a secure flow of power. Many factors affect battery life. These include: screen brightness, battery conditioning, features, applications, power management and other customer preferences.Lithium-Ion (Li-Ion) technology 6 cell system battery Over-discharge protection to prolong the life of the battery Battery energy (Watt-hours): 90 Wh Battery Safeguard chip authenticates with Lenovo systems