The top six bat­tery hogs

Mac|Life - - FEATURE -

1 Screens

LCD screens have to be pow­ered them­selves, but need a back­light too. The re­sult is that they draw a lot of power, es­pe­cially at brighter set­tings. OLED screens (used on iPhone X and Ap­ple Watch) don’t re­quire a back­light, so are kinder on bat­ter­ies.

2 Data stream­ing

Stream­ing data at high speeds between your cell and the near­est tower re­quires a lot of en­ergy. More mod­ern ver­sions are more ef­fi­cient, but are still ma­jor bat­tery killers.

3 In­ten­sive ap­pli­ca­tions

Pro­ces­sors are a bit like car en­gines, in that they use more fuel the harder you push them. Any task that re­quires a lot of pro­cess­ing power over a long time — such as con­vert­ing a video, or the way a game is con­stantly us­ing a graph­ics chip — will use a lot of bat­tery power.

4 Wi- Fi

There’s some de­bate over whether mo­bile in­ter­net is more of a bat­tery drain than Wi-Fi. Ei­ther way, send­ing data over the air from your de­vice to your router (and back) will have an im­pact on your de­vice’s bat­tery life.

5 Hard drives

Got a Macbook? Then you should know that your hard drive could be the source of a ma­jor bat­tery deficit. Think about it — spin­ning a mag­netic disk at thou­sands of rev­o­lu­tions per minute uses more power than flash stor­age. If that’s a con­cern, it might be time for an up­grade.

6 GPS

Who would have guessed that com­mu­ni­cat­ing with satel­lites in low Earth or­bit turns out to be tax­ing? The con­stant lo­ca­tion search­ing your de­vice does will quickly drain its bat­tery.

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