The Asus C302 is known to ship with only about 93% battery health, so yours probably didn’t start at 100% when it was new. I was having a Twitter convo with someone about battery health and got that stuck in my mind. Oh well. It’s easy to buy and fit a replacement battery yourself. As you use Chromebook, you can see the battery indicator ever so slowly trickling down (ever so slowly being the operative phrase). This site uses Akismet to reduce spam. How bug bounties are changing everything about security, 10 macOS tune-up tips to keep your Mac running like a sports car, C++ programming language: How it became the invisible foundation for everything, and what's next, Raspberry Pi stocking fillers and gift ideas for holiday 2020. Thank you. Note that you can specify the test to run in seconds by typing that number after the command. This command also runs a five minute battery discharge test. How do you run these commands? Said tools are commands that will report back the true health and other information about your battery. Learn how your comment data is processed. Hey John, I’m finally back online after a week or so of illness. This leads me to believe: 1) The readings from these battery tests are a crock…or2) Asus skip on their batteries and use shoddy ones. Thanks for having this information available for us. With just two commands you can learn more about your Chromebook battery than what the system tray indicator tells you. If you own a Chromebook or any other ChromeOS device, here is a useful trick to check battery health and performance. So will post it again.I have had same or similar problems to above users.a) My Acer Chromebook is reluctant to start on battery in mornings after shut down previous day,requires charger to be plugged in for a few mins even though battery is charged.b) When it does come on sometimes the battery indicator does not show, and other times it does show but with only a small % of charge left despite being fully charged according to indicator (and blue LED is on)c) On occasions when battery indicator does not show the laptop will go all day before battery gives outd) Crosh rest give various battery condition ranging from 98% with 8% battery health to other times around 100% battery condition.So it does not look like battery is worn out, looks to be a memory problem with battery charging circuit, or software issue. probably will replace the battery once it gets to 75% healthBattery health: 86.75%OEM name: AS1FOADModel number: C213-60Chemistry : OOC0Serial number: 10FADesign capacity: 6044 mAhLast full charge: 5240 mAhDesign output voltage 7700 mVCycle count 201Present voltage 7626 mVPresent current 497 mARemaining capacity 2246 mAhFlags 0x06 BATT_PRESENT DISCHARGING, crosh> battery_firmware infoBattery info:OEM name: AS1FOADModel number: C213-60Chemistry : OOC0Serial number: 014DDesign capacity: 6044 mAhLast full charge: 5204 mAhDesign output voltage 7700 mVCycle count 87Present voltage 7710 mVPresent current 605 mARemaining capacity 2888 mAhFlags 0x06 BATT_PRESENT DISCHARGING. It seems strange that so many people have the same issues. Sorry, in a bit of a rush so haven’t had time to check if you’ve tried the below already. I’m a bit surprised that the capacity is down 11% with so few cycles. Found your site. This command also runs a five minute battery discharge test. Is this a problem with my battery health? Guest mode strips away any personal information or customizations. What can I do? Ran the tests indicated. Chromebook!) Does that mean it doesn’t have much life left? Hello.I’ve just tested my battery health and it’s says:Battery test 97,59%, battery discharged 0,59% în 300 seconds. The second command (to view the battery information, including cycle count) is battery_firmware info. I have a two year old heavily used Asus 302 and have recently begun to notice a shorter on battery times than I’d come to expect. The second command reports a good amount of information about the battery, but more importantly, the cycle count. I use my CHROMEBOOK a LOT! And as far as the battery health, just understand that the percentage is what the device will get on a charge as compared to the same device brand new. Battery test shows I have 89% capacity but a cycle count of 18. That will run a (very) short test and tell you how good your battery is now. My Asus C101 is only 3 months old, but my health is already down to 90%. I love my little c213. My Pixelbook has gone through 76 cycles, as shown: If you’re buying a used Chromebook, consider asking the seller to run these commands on the device and show you the results. Required fields are marked *. Fortunately, the developers thought to include a couple of tools in the operating system to help you. Notice I have much fewer cycles than you, but my battery health is practically the same. My Samsung chromebook is a couple of years old…use it mostly plugged in.