“MacBook Air (13-inch, Early 2015)”-then click the System Report button and scroll down to Power in the left sidebar. Click the Apple logo in the upper left corner of your screen, then click About This Mac. MacBook users have to do just a tiny bit of legwork to get this information, but it’s easy enough for anyone to handle. How To Check Your Battery Health on a Mac If the report shows drastic differences, you may want to get a new battery.Ģ. With this kind of laptop battery life test, you can identify problems that affect your battery life.And the time your computer ran on battery or plugged into the power outlet. Check the battery’s usage and duration.Compare the battery life at Full Charge versus Design Capacity from the time when you purchased the laptop.Observe how Full Charge Capacity gradually decreases in comparison with Design Capacity.See how much battery capacity has drained over the last few days in different power states.As batteries wear over time, the full charge capacity will be less than the design capacity. You’ll expect a reduced full charge capacity. The difference between Design Capacity and Full Charge Capacity. ![]() This command saves a battery report in HTML format toĬ:\Users\Your_Username\battery-report.htmlĭouble-click the file to open it in your browser. To generate a battery report, open Command Prompt and type in powercfg /batteryreport. You can use it to generate a precise report of your battery history. It includes information about your battery performance and lets you observe the decline in battery capacity that inevitably occurs over time. I’ll end this post with one final link from The Battery University on the best conditions to charge any battery - How To Charge and When To Charge.The powercfg command is a hidden tool on Windows. Out of the two, my preference was AlDente as I noticed the set charge limit didn’t get wiped as often when compared with Charge Limiter. This is a minor annoyance I can live with. The only thing to be aware of when using these applications is that sometimes the set charge limit can be wiped after a shutdown or restart. Two open-source variants carry out the job satisfactorily:īoth these apps modify the “Battery Charge Level Max” (BCLM) parameter in the SMC, which when set limit the charge level. Unfortunately, you’re very limited to find a similar official application for macOS. If the likes of Lenovo, Samsung and Sony (all running on Windows) provide support software to limit the charge threshold, there has to be some substance to this approach. Also, according to the Battery University, setting a charging threshold to 80% might get you around 1500 charge cycles. One indirect benefit of setting a charge limit is there will be less charge cycles counted, resulting in increased resale value should you decide to sell your laptop. Going by experience, this didn’t help the lifespan of my previous Macbook’s battery. Apparently, MacOS’s battery health management should suffice for the majority of scenarios when it comes to general usage. Now, there is a great debate across forums whether going to such lengths does have any positive impact on battery health. My only option was to find a “battery charge limiter” application that would set a maximum battery charge. ![]() This is easier said than done especially when my laptop is connected via Thunderbolt to my monitor, both powering my laptop and gives dual-screen capability. I made the conscious decision to actively take care of the battery and not repeat the mistakes I made in how I used my previous laptop. My old laptop has now been replaced with the most recent iteration of the Macbook Pro, as I needed a little more power and most importantly 32GB of RAM to run intensive virtual environments. This was the most hardest part of the whole process! That picture was taken in when I managed to carefully pry the first cells of the old battery away from the existing adhesive. I was brave enough to replace the battery myself giving a new lease of life! The post teaser image is proof of my efforts. Not something I’d expect from the build quality expected from an Apple product. ![]() This seemed to happen quicker than I would have liked - within 3 years from purchase. The battery from my previous laptop, a Macbook Pro 2015, died a slow death until it got to a point where it soon became a glorified workstation. I’ve been told leaving your laptop on charge has a negative impact on the longevity of your battery. Since working from home, my laptop is constantly left plugged into the mains as there isn’t much of a reason to ever disconnect, especially when you have a nice office to work in.
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