Asus CX34 Chromebook Plus Battery Test

Asus CX34 Chromebook Plus has a 50W Hrs Lithium Polymer battery. The following are the results of a non-scientific battery test.

For context, I’m using the base model with Intel i3 1215U Processor. I also did a full review of the device that you can read here: Asus CX34 Chromebook Plus review.

Tracking usage and percentage

Time	Duration	Battery Percentage	Usage	Screen, Speakers
11: 57 AM	0Hr 0Min	100%	Netflix	Screen brightness – 50% Speaker volume – 60%
01:20 PM	1Hr 23Min	86%	Netflix Casual browsing	Screen brightness – 50% Speaker volume – 60%
01:42 PM	1Hr 45Min	81%	Netflix	Screen brightness – 50% Speaker volume – 60%
02:06 PM	2Hr 09Min	77%	Netflix	Screen brightness – 50% Speaker volume – 60%
02:54 PM	2Hr 57Min	66%	Netflix	Screen brightness – 70% Speaker volume – 60%
04:12 PM	4Hr 18Min	51%	Netflix	Screen brightness – 50% Speaker volume – 60%
04:33 PM	4Hr 39Min	46%	Netflix	Screen brightness – 50% Speaker volume – 60%
05:14 PM	5Hr 20Min	35%	Netflix	Screen brightness – 50% Speaker volume – 60%
Sleep
10:26 PM	5Hr 20Min	35%	Netflix	Screen brightness – 70% Speaker volume – 60%
11:02 PM	5Hr 56Min	26%	Netflix	Screen brightness – 70% Speaker volume – 60%
11:27 PM	6Hr 21Min	20%	Netflix	Screen brightness – 70% Speaker volume – 60%
11:40 PM	6Hr 34Min	17%	Netflix	Screen brightness – 70% Speaker volume – 60%
11:54 PM	6Hr 48Min	14%	Netflix	Screen brightness – 70% Speaker volume – 60%
12:02 AM	6Hr 56Min	12%	Netflix	Screen brightness – 70% Speaker volume – 60%
12:16 AM	7Hr 10Min	09%	Netflix	Screen brightness – 70% Speaker volume – 60%
12:30 AM	7Hr 24Min	05%	Netflix	Screen brightness – 70% Speaker volume – 60%

I got a total of 7Hr and 24Min of usage out of a full charge. I mostly watched Netflix with some casual browsing. My speaker volume was around 60% most of the time and screen brightness between 50 – 70%.

Overall, it was decent battery life but could be slightly better if not for the Intel processor. The good thing about the processor is the performance, I didn’t face any performance issues over the last 10 days I used the chromebook, but it does run warm a bit and because of that it could be consuming more power. I think for good battery life, ARM processors are always better but not so much for the performance, at least for now.