HP ZBook 14: Battery Life

Our final benchmark is a test of battery life. Here's where HP runs into a bit of trouble, as the default software installation ends up negatively impacting battery life. I usually leave on the manufacturer utilities, but in this case HP has a security suite that results in about 15-20% less battery life. I ran the battery tests first with the software installed and then again after uninstalling, and the difference was quite dramatic. The problem is that some companies might actually like the HP software suite, and if so you'll just have to know you're going to lose out on some power savings. For testing, the LCD was run at 85% brightness (200 nits); we've switched our 1080p video and playback software for 2014, and as this laptop is running Windows 7 instead of Windows 8.1 we opted to use Windows Media Player as an alternative to the Win8 Video app.

Battery Life 2013 - Light

Battery Life 2013 - Heavy

Battery Life 2013 - Light Normalized

Battery Life 2013 - Heavy Normalized

Even without the extra HP software dragging battery life down, the results here are merely good and not exceptional. Seven hours of light use and four hours of heavy use might be enough to get you through the day, but more likely than not you'll want to bring along the AC adapter – just in case. As another option, HP does sell a slice battery that works with the ZBook 14, so you can sacrifice weight and thickness to basically double the battery life. The slice battery is also "intelligent" – the laptop will discharge the slice battery first and charge the integrated battery first, so you can potentially leave the slice in your bag and continue using the laptop when the power is drained.

Normalized battery life has the ZBook leading several other laptops, but at least the Sony VAIO Pro 13 and the new Surface Pro 3 maintain an efficiency advantage. Some of that might be due to the larger LCD on the ZBook, but while that could potentially narrow the gap in the Heavy workload, in the Light workload we're looking at a relatively large deficit.

HP ZBook 14: A Good LCD Conclusion: An Actual Ultrabook Workstation
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  • Connoisseur - Friday, June 20, 2014 - link

    Wait...when did you guys review the razer blade 2014? I've been waiting on the review for ages and now I see the benchmarks plastered all over the zbook review!
  • wrkingclass_hero - Friday, June 20, 2014 - link

    It lives with the infamous Mac Book Pro Retina review.
  • Connoisseur - Friday, June 20, 2014 - link

    I mean benchmarks are great but, as Jarred himself mentioned, subjective reviews are just as important. I'd like to know how it is in day-to-day use, whether the temps are manageable and any speculation on longevity or quality of the components. Come on AT, give me a great review :( Or at least a mini review.
  • MonkeyPaw - Friday, June 20, 2014 - link

    "Our final benchmark is a test of battery life. Here's where HP runs into a bit of trouble, as the default software installation ends up negatively impacting battery life."

    Had a similar issue with my Yoga 11S. The preinstalled anti-virus program (McAfee, I think) bogged the machine so badly that it made it nearly unusable. I uninstalled it and let MS Security Essentials take over and it was completely different. I don't know why an AV program would be so resource heavy as to make a machine feel worthless.
  • skiboysteve - Saturday, June 21, 2014 - link

    I wish I could do that. My enterprise forces McAfee on and it is really really horrible
  • SlackMasterDoug - Friday, June 20, 2014 - link

    Did you notice any temporary (2-10 second) screen burn in during your review? I've had the ZBook 15 since it launched and have it bad. External screen's work just fine but the laptop's 1080p non-dreamcolor display with the K1100M does it daily. We have two in our office and they both do it.
  • JarredWalton - Friday, June 20, 2014 - link

    I've noticed a lot of IPS displays seem to have image persistence if left on a static screen for hours. I didn't notice any issues with the ZBook 14, but then I have the screen set to turn off after 10 minutes of inactivity. I learned my lesson that burn-in is a real problem even with modern displays if you leave them active 24/7 with a relatively static image, plus there's always the power consideration.
  • SlackMasterDoug - Friday, June 20, 2014 - link

    Funny thing is I get burn in from having a web browser open. I get to see a lovely burned in tab display over top of a Windows server desktop daily.
  • Drumsticks - Friday, June 20, 2014 - link

    Wait a minute, where's our Surface Pro 3 review??

    Thanks, guys! Me and my T420 are watching wistfully at all of the fancy stuff coming out. I think I'm going to wait for broadwell to pick up a new consumer PC, and my work laptop isn't due for upgrade for another year so... Haswell sucks :P
  • nerd1 - Friday, June 20, 2014 - link

    I feel quite bad about anandtech now - just EVERY apple devices get reviewed within days and surface pro 3 hasn't got full review after one full month since its debut.

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