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Since I started using Blender on my school MacBook Air,every time I render an image,it drains my battery life quickly and I have to put it back on the charger in less than two hours which is so annoying. Could someone please tell me how to fix this? If you do,I'll give you a big reward as well as my deepest thanks.

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If you start rendering an image, Blender utilizes either your CPU or GPU and puts it under heavy load. If your CPU/GPU is under heavy load, it raises it's clock rate and therefor its voltage. This results in higher energy consumption. There is nothing you can do about it.

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  • $\begingroup$ Well that stinks! $\endgroup$ – JeremiahTDK Oct 11 '17 at 14:34
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You can send the render job to a free, distributed renderfarm (eg. https://sheepit-renderfarm.com).

This will likely decrease the time taken to get the rendered result and use less of your laptop's energy.

Obviously, you should contribute to the renderfarm when you are plugged in

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    $\begingroup$ Which in return would bring him up to the same problem. $\endgroup$ – Reaper Oct 11 '17 at 14:39
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    $\begingroup$ @JeremiahTDK As it stands, your question is: How can I stop blender from draining my battery life [when rendering an image]? A solution is to let others do the rendering for you. If you do not want to let others render for you, modify your original post $\endgroup$ – arsyyuhjb Oct 11 '17 at 14:43
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    $\begingroup$ The problem is, that if he uses Sheepit, he needs to participate, which in return drains his battery life. $\endgroup$ – Reaper Oct 11 '17 at 14:45
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    $\begingroup$ Well, realistically, on the long run, you need to participate. $\endgroup$ – Reaper Oct 11 '17 at 14:47
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    $\begingroup$ Rendering takes CPU/GPU time and any such work will drain the battery. In my mind @arsyyuhjb’s suggestion is a valid one. The only other option is to reduce the work by reducing the quality and/or resolution of the render, simplifying the model, using BI instead of Cycles - or rendering when not running on battery (or get someone else to render it!). The question is otherwise too broad to dismiss this as a solution. $\endgroup$ – Rich Sedman Oct 11 '17 at 15:11

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