Tag Archive for ‘Battery’

Finding Your MacBook’s Battery Cycle Count ➝

A great tip by Jeff Benjamin showing how to determine if your Mac’s battery is within its normal cycle count lifespan.

What You Should and Shouldn’t Do to Extend Your Phone’s Battery Life ➝

The Wirecutter:

One of the biggest complaints people have about their smartphone is that the battery doesn’t last long enough. For many people, just making it through the day can be a challenge, which is why you see so many “How to make your phone’s battery last longer!” articles in your friends’ Facebook feeds. But many of the claims in those articles are specious at best, and some of the tricks they suggest could actually shorten your battery life. So which ones should you try?

We partnered with The New York Times to find the answer by testing, on both Android and iPhone smartphones, a slew of procedures that people, publications, and—in some cases—smartphone manufacturers suggest for getting more use time out of your phone. The article on the NYT website includes a summary of our findings, but if you want to know more, read on for our extended recommendations.

This is a great read, but I would specifically direct your attention to the Battery-saving myths section. It’s filled with information that every smartphone owner should know.

(Via David Chartier.)

Standby Current of a USB Car Charger ➝

Big Mess o’ Wires:

Is a constant 14.2 mA draw enough to worry about discharging the car’s battery? Probably not. From a few quick searches, I learned that a typical car battery has a capacity of around 40 ampere hours. At 14.2 mA, it would take 2817 hours or 117 days to completely discharge the car’s battery. Assuming I drive the car every day, then, it’s not a concern. Even parking the car for a week or two should be fine. But if I ever need to leave the car in storage for an extended period of time, that 14.2 mA could add up. Of course the car itself has its own standby current draw for the anti-theft system and keyless entry, so the USB charger may not even be the largest concern. For typical driving, at least, it appears the USB charger’s standby current draw won’t be a problem.

I thought it was unlikely that leaving a car charger plugged in would drain your battery, but I never had the courage to just leave it that way. The last thing I need is a car that won’t start because I was too lazy to unplug the thing. But now that I know it’s safe to do so, I won’t even worry about it.

Uninstalling Facebook App Saves up to 15% of iPhone Battery Life ➝

Samuel Gibbs, writing for The Guardian:

I accessed Facebook for the same amount of time, and for the same purposes, using the social network’s excellent mobile site within Safari, as I had done using the app. I also left the Facebook Messenger app installed. […]

To make sure that this wasn’t an isolated incident, I also recruited several other Facebook-using iPhone owners to conduct a similar test. They all found similar results, with increased battery life when using Facebook in Safari having uninstalled the main Facebook iOS app.

If you feel that you need to continue using Facebook, I suggest uninstalling the app and adding a website shortcut to your iPhone’s home screen.

‘Battery Tech Isn’t Keeping Up’ ➝

From what I understand, physics and chemistry are the biggest limiting factors to battery capacity. There’s only so much power you can fit into a given volume. If we’re going to see a major improvement in battery life, it’s likely going to come at the expense of performance or size and weight.

My guess is that at some point we’ll reach a tipping point where devices are about as fast as most users could ever want. That’s when manufacturers will start focusing on making chips that are comparible in power level to their predecessors but are far more energy efficient.

Apple Addresses iPhone 6s Battery Life Concerns ➝

Apple’s statement regarding the iPhone 6s battery life kerfuffle, as published by TechCrunch:

With the Apple-designed A9 chip in your iPhone 6s or iPhone 6s Plus, you are getting the most advanced smartphone chip in the world. Every chip we ship meets Apple’s highest standards for providing incredible performance and deliver great battery life, regardless of iPhone 6s capacity, color, or model.

Certain manufactured lab tests which run the processors with a continuous heavy workload until the battery depletes are not representative of real-world usage, since they spend an unrealistic amount of time at the highest CPU performance state. It’s a misleading way to measure real-world battery life. Our testing and customer data show the actual battery life of the iPhone 6s and iPhone 6s Plus, even taking into account variable component differences, vary within just 2-3% of each other.

I checked my iPhone 6s a couple of days ago with Lirum Device Info Lite and found that I do have the Samsung-manufactured A9 chip. And although I’m only a single data point, I’ve been more than happy with my device’s battery life. If you’re experiencing battery life that seems outside of Apple’s range of acceptability, my suggestion is to take your iPhone to your local Genius Bar and try to get a replacement.

Should Apple Improve iPhone Battery Life, or Just Battery Cases? ➝

Jeremy Horowitz discusses Apple’s options for improving iPhone battery life. Personally, I’m still quite happy with my iPhone 5s’s battery life, and it’s nearly a year-and-a-half old at this point. So, I don’t really feel like Apple needs to improve battery life. However, I’d love to shave a few more millimeters off of the thickness of my iPhone — Ever since I started using the iPad Air 2, my iPhone 5s has felt thick and clunky by comparison. I suppose this puts me in the camp advocating for improved battery cases, even though I’ve never used one.

Targets for Apple Watch Battery Life Revealed ➝

Another scoop by Mark Gurman:

Our sources say that Apple is targeting 2.5 hours of “heavy” application use, such as processor-intensive gameplay, or 3.5 hours of standard app use. Interestingly, Apple expects to see better battery life when using the Watch’s fitness tracking software, which is targeted for nearly 4 hours of straight exercise tracking on a single charge.

I’d say this is on the lean side of the acceptability spectrum. It should be enough for many owners, but I can imagine the battery dying out before bedtime for more heavy users.