backup battery for laptop

mik2000

Reputable
Apr 20, 2015
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4,510
i am planning to do some traveling this year and i am wondering if there is a backup battery for laptop in case my laptop's battery get low or go funny on me since i won't find a wall outlet on a plane lol
 
While third-party external power packs that attach to your laptop's charger port certainly exist for many makes and models, the best thing I have ever found is simply an extra battery, if your machine's battery is removable.
 
getting a extra battery wouldn't be best option one for some reason it's hard to find battery for my laptop model and two i will have to open up my laptop just to change battery
 
An extra battery can not be hot-swapped, right? But, an external battery can just be plugged in to take over as the regular battery runs low. Then, an external battery can potentially charge the regular battery and run the laptop simultaneously, right? Granted, not all external batteries are designed for this, and accumulating weight and pieces might be an issue.

This article is >4 years old:
External Battery Roundup: Stay Away From The Wall Socket
MAR 8, 2011 - IN ARTICLES > COMPONENTS

Does anyone know where there is a current comparison table(s) or new strategies for running a laptop longer "in the field"? I want to run a T540p, 15.6" laptop.