Part of the Electronics glossary:

Battery life is a measure of  battery performance and longevity, which can be quantified in several ways: as run time on a full charge, as estimated by a manufacturer in milliampere hours, or as the number of charge cycles until the end of useful life. 

Build factors that affect battery life include the type, the number and the quality of cells used.  Generally, battery health and longevity declines further into a battery's life and as a function of the number of charge cycles it has gone through. However, there are a number of things a user can do to extend battery life.

Both lithium polymer and lithium ion batteries tend to benefit from partial discharges to enable more charge cycles before performance is lost. Older rechargeables, like nickel cadmium or nickel metal-hydride lithium batteries, do not get a charge memory that reduces performance when the battery is only partially discharged before recharging.

Because charge cycles degrade battery life, removing a laptop’s battery and plugging the device in when staying in one place will preserve and extend battery functioning. Other measures include ensuring clean electricity and keeping the device cool.

Tips to increase the length of time a battery runs on a charge include not running more applications than necessary and reducing screen brightness.

This was last updated in August 2013
Contributor(s): Matthew Haughn
Posted by: Margaret Rouse

Related Terms

Definitions

  • heat pump

    - A heat pump is a device that takes heat from one source and moves it to another location through electric or mechanical means. Heat pumps may be used either to heat or cool. Heat pump technologies ... (WhatIs.com)

  • integrated solar

    - Integrated solar is the inclusion of solar power technology as a part of original construction rather than as a separate module that is added later. Solar energy may be gathered thermally or throug... (WhatIs.com)

  • segmented memory

    - Segmented memory is a system of addressing computer memory, which may be physical or virtual and may be operating in real or protected mode. The segmented memory system was used to expand the 64KB... (WhatIs.com)

Glossaries

  • Electronics

    - Terms related to electronics, including definitions about electrical components and words and phrases about computers, laptops parts, digital cameras, televisions and home appliances.

  • Internet applications

    - This WhatIs.com glossary contains terms related to Internet applications, including definitions about Software as a Service (SaaS) delivery models and words and phrases about web sites, e-commerce ...

Ask a Question. Find an Answer.Powered by ITKnowledgeExchange.com

Ask An IT Question

Get answers from your peers on your most technical challenges

Ask Question
  • iPhone battery optimization

  • Windows 8

    Also check to see what else is running in the background.  I heard Windows 8 has quite a few things running so that might be your problem.  Open your Task Manager and take a look there.

Tech TalkComment

Share
Comments

    Results

    Contribute to the conversation

    All fields are required. Comments will appear at the bottom of the article.