macOS Catalina 10.15.5 has a great battery-saving feature for MacBooks – but there’s a catch

macOS Catalina
(Image credit: Shutterstock; Apple)

macOS Catalina 10.15.5 is now out, and the update comes with a new feature to help ensure that your MacBook’s battery remains in good health, and offers better longevity as it gets older.

The idea is that the new battery health management feature reduces the rate that the battery chemically ages, and as Apple explains: “The feature does this by monitoring your battery’s temperature history and its charging patterns. Based on the measurements that it collects, battery health management may reduce your battery’s maximum charge when in this mode.”

It’s a mode you can turn off if you wish, so it’s not compulsory, but it can help to reduce the wear on your battery, depending on your exact usage pattern. If you keep your MacBook plugged into the mains most of the time – and don’t use it out and about much – the overall capacity that the battery is charged to is artificially cut back, to prevent this kind of use case from negatively affecting the battery in the long-term (because you don’t want it constantly being kept at 100% capacity; this is bad news for the battery).

Given that MacBook batteries aren’t user-replaceable, it’s obviously pretty handy to have this feature, as battery performance degrading over time can become something of a thorn in the side of MacBook owners.

Supported MacBooks

The catch here is that this feature is only provided to newer MacBooks that support Thunderbolt 3, although we’ve seen some anecdotal reports that some older Apple laptops which do have Thunderbolt 3 haven’t received the feature. At any rate, you should get it in these cases, but the only way to find out for sure is to upgrade to version 10.15.5.

As well as the battery health addition, macOS Catalina 10.15.5 applies a bunch of fixes, including the solution for a bug causing system crashes when large amounts of data are transferred over to RAID volumes.

Via The Verge

TOPICS

Darren is a freelancer writing news and features for TechRadar (and occasionally T3) across a broad range of computing topics including CPUs, GPUs, various other hardware, VPNs, antivirus and more. He has written about tech for the best part of three decades, and writes books in his spare time (his debut novel - 'I Know What You Did Last Supper' - was published by Hachette UK in 2013).

Latest in Macbooks
MacBook Air M4 on an orange background
The all-new MacBook Air has already got a very early price cut at Amazon
The MacBook Air 13-inch (M2) on a pink background with text saying Big Savings next to it.
The MacBook Air M2 has a massive price cut thanks to the M4 launch
apple macbook air against blue background
There's a huge MacBook Air sale right now – shop record-low prices from $629.99
13-inch and 15-inch MacBook Air M4 in Sky Blue
The new Apple MacBook Air M4 has a weird quirk with its performance cores - but it's nothing to worry about
MacBook Air 15-inch with M4 chip on a creative's desk with screen open
I've reviewed the Apple MacBook Air 15-inch (M4) - and it remains the best 15-inch laptop I'd recommend for most people
Apple MacBook Air M3 on yellow background with lowest price text overlay
Forget the MacBook Air M4: here are 9 older-model MacBook deals from $629.99
Latest in News
Cassian Andor looking nervously over his shoulder in Andor season 2
New Andor season 2 trailer has got Star Wars fans asking the same question – and it includes an ominous call back to Rogue One's official teaser
23andMe
23andMe is bankrupt and about to sell your DNA, here's how to stop that from happening
A phone showing a ChatGPT app error message
ChatGPT was down for many – here's what happened
AirPods Max with USB-C in every color
Apple's AirPods Max with USB-C will get lossless audio in April, but you'll need to go wired
A woman sitting in a chair looking at a Windows 11 laptop
It looks like Microsoft might have thought better about banishing Copilot AI shortcut from Windows 11
Lock on Laptop Screen
Medusa ransomware is able to disable anti-malware tools, so be on your guard