Lenovo ThinkPad Battery 77+ - notebook battery - Li-Ion - 90 Wh

Lenovo ThinkPad Battery 77+ - notebook battery - Li-Ion - 90 Wh

Mfg.Part: 4X50K14091 | CDW Part: 3974999 | UNSPSC: 26111711

Availability: In Stock

Warranties

None

Product Details

Notebook battery
1 x lithium ion 6-cell 90 Wh
FRU
CRU
for ThinkPad P50 20EN
20EQ; P51 20HH
20HJ

View Full Product Details

Lenovo ThinkPad Battery 77+ - notebook battery - Li-Ion - 90 Wh

Main Features

Notebook battery
1 x lithium ion 6-cell 90 Wh
FRU
CRU
for ThinkPad P50 20EN
20EQ; P51 20HH
20HJ
20MM

The 6-cell ThinkPad battery 77+ is a replacement/spare battery for P50 system. The battery is rechargeable and can be used as replacement or as a convenient spare for mobile workstation ThinkPad P50 system. 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.

Lenovo ThinkPad Battery 77+ - notebook battery - Li-Ion - 90 Wh is rated3.67 out of5 by3.

Rated 5 out of 5 bybdemchak from A necessary buy for a P51The P51 (especially with 4K screen) is very power hungry.For airline travel, you'll definitely need this battery. Here's why:The P51 power brick is giant. At about 1.5 pounds, it's luggable. The overall power picture, though, is the machine's weakness. For air travel, I bought this extra battery immediately. When I plug into an AA power port, the machine warns that it's on airline power, which isn't enough to drive the machine. Instead, it draws power from both the power port *and* the battery, so the battery drains during flight. You will not land with a full battery ... beware. I have tried running only with battery stretch mode: the machine is very sluggish and the screen is dim. I haven't needed to push the machine to max performance yet ... but I expect only a few hours per battery in this mode. Considering this, I now have a 90W power supply (LVSUN LS-PAB90S-2U) that I'll be trying on my next trip. It's much smaller/lighter than the 170W brick and may do just as well. Though I'll probably find myself wishing for the brick once I get to my destination. The jury is definitely out on this. FWIW, the machine *will not* run just on seat power ... it really needs to draw on the battery, too.

Date published: 2017-08-21T00:00:00-04:00

Rated 5 out of 5 bymbossard from Fair lifeThe battery life for the replacement is not nearly as good as the original was. I could easily get 5 or 6 hours of use on the battery when I purchased and with the replacement 2 hours is the maximum.

Date published: 2018-03-16T00:00:00-04:00

Rated 5 out of 5 bywintergreen87 from Pretty GoodMy previous battery had started out lasting 8 hours, but decayed to only 1.5 after a while. I got this one as a replacement and it lasts more in the 6 hour range with the screen brightness at max level and active usage. It works pretty well.

Date published: 2018-10-08T00:00:00-04:00

Lenovo ThinkPad Battery 77+ - notebook battery - Li-Ion - 90 Wh

Lenovo ThinkPad Battery 77+ - notebook battery - Li-Ion - 90 Wh

Product Overview