Aug 22 AT 10:30 AM Nick Sarafolean 5 Comments

Samsung Galaxy Tab S 10.5 battery: fully prepped for binge watching

Galaxy Tab S 10.5 (27) (JPG, Resized)

Over the past three days, I’ve covered the hardware, software and performance of the Galaxy Tab S 10.5. And believe it or not, I’m not even to the most important part yet. The battery is what drives the Samsung Galaxy Tab S 10.5, what keeps it going through whatever task you may throw at it. With a high resolution of 2560×1600, I was excited to see how the 7,900mAh battery performed in everyday usage.

The answer is: quite well. With moderate usage and auto brightness, it’s not at all hard to make it through a full day from 7:00AM to 11:00PM, maybe even part of the next day. Heavier usage brings you within a single day, but you shouldn’t need to charge during the middle of the afternoon or anything. If you’re using the Tab S 10.5 lightly, you could probably get a full three days out of it.

Screen-on time with auto brightness came to about four hours, which is decent. Better screen-on times can be found, but four hours is plenty for binge watching some TV shows. That’s about four episodes of House of Cards or perhaps 12 episodes of The Office. And if you’re at all like me, those kind of figures are important when figuring out what tablet to buy.

If you’re really looking to conserve battery life, Samsung has a power saving mode that should garner you a bit more time. And if you’re in a desperate pinch, Samsung has thrown in Ultra Power Saving Mode that turns the screen to grayscale and severely limits what the device can do, all at the sake of several days, possibly even weeks, of battery life. But let’s be honest, you’ll never use this unless it’s an emergency.

The charging process of the Galaxy Tab S 10.5 is notable. The tablet charges through microUSB, and I’ll give a fair warning that it takes a long time to charge. When I received the tablet, it was entirely dead, and it took several hours to get it back to 100 percent. It’s certainly something to consider if you generally rely on a lot of short, quick charges.

All that said, the Galaxy Tab S 10.5 performs reasonably well in the battery department. Very few tablets can match its battery life and performance. It takes a while to charge, sure, but that’s to be expected with a large battery that charges via microUSB. In the end, the Galaxy Tab S 10.5 passes with good grades on the battery front.

A nerd at heart, Nick is an average person who has a passion for all things electronic. When not spending his time writing about the latest gadgets, Nick enjoys reading, dabbling in photography, and experimenting with anything and everything coffee. Should you wish to know more about him, you can follow him on Twitter @Zricon15.

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  • yorkshire_geek

    Owner of Nexus 4, 5, 7, 10, a netbook, laptop, and OPO here. For this topic I relate to the Nexus 10.

    The Nexus 10 doesn’t leave the house because its size in case+keyboard is huge and the screens vs size o the N5, N7, OPO all are more worthwhile. For longer trips I take the netbook as it can unbrick via ADB and problems I might hit with Android.

    The battery life issue then isn’t really much of an issue it just needs enough to hand an hour or two whilst moving around.

    Also FYI to put this into perspective, its $30 delivered to have a 13000mah battery to do a full recharge and it recharges in 6 hours, add a dual USB charger for mains and a dual USB 4.8A car cigaretter lighter 12V your tablet is sorted.

    The N10 has that battery connected Pogo connector to break the MicroUSB Ampage issues, reduces charge time by 20% roughly and I see Samsung here didn’t include a proprietary power connector option. Not very bright if someone expects a fast charge but given how big and non-luggable are 10″ tablets its also not that important, so long as the owner has the right expectations.

    10″ tablets – keep power near and expect long recharge times.

  • BA Weber

    I have had my S for 2 months now, but since my employer gave me an Ipad air, it has not been used much. The battery is now a problem. It will drop from 99 to 91% overnight, while turned off. Twice now I have turned it on after a few hours, seeing battery drop 6% while off, and then drop 12 to 16% in less than 20 seconds. Is this the battery, or the app which shows the battery charge? Either way its a problem. Seems to have a short in the circuitry. Just went down another 16% in the last 20 minutes with the screen off. Anyone else having this problem? I have even been using it while plugged in and watched the battery charge going DOWN!

    • suraj

      Well I have a tab s,, guess wat,, my battery won’t last more deb 4 to 5 hrs with a moderate use like reading books nd using ft nd whatapp .. now its kinda lagging. . Disappointed ..With Samsung didn’t expect dis from tab s!!!!!

  • waqas muhammad

    I own the galaxy tab s 10.5 and I use it with full brightness with several tasks and during the whole day I get 6 hours of screen on time. With full brightness.

  • Charlene

    I thought I am the only one having problem with tab s. Mine is also a problem. My tab is also plugged in and I notice the battery is going down instead of charging it up. And I was just scrolling on the net with my battery 100% and then suddenly, after 10mins it will be down to 70%. !! And when it is almost out of battery, I charge it and voila! battery full in less than 30 mins! ! I never thought it would be like this. if only I know, I wouldn’t buy this tab!

  1. Owner of Nexus 4, 5, 7, 10, a netbook, laptop, and OPO here. For this topic I relate to the Nexus 10.

    The Nexus 10 doesn’t leave the house because its size in case+keyboard is huge and the screens vs size o the N5, N7, OPO all are more worthwhile. For longer trips I take the netbook as it can unbrick via ADB and problems I might hit with Android.

    The battery life issue then isn’t really much of an issue it just needs enough to hand an hour or two whilst moving around.

    Also FYI to put this into perspective, its $30 delivered to have a 13000mah battery to do a full recharge and it recharges in 6 hours, add a dual USB charger for mains and a dual USB 4.8A car cigaretter lighter 12V your tablet is sorted.

    The N10 has that battery connected Pogo connector to break the MicroUSB Ampage issues, reduces charge time by 20% roughly and I see Samsung here didn’t include a proprietary power connector option. Not very bright if someone expects a fast charge but given how big and non-luggable are 10″ tablets its also not that important, so long as the owner has the right expectations.

    10″ tablets – keep power near and expect long recharge times.

  2. BA WeberGuest 8 months ago

    I have had my S for 2 months now, but since my employer gave me an Ipad air, it has not been used much. The battery is now a problem. It will drop from 99 to 91% overnight, while turned off. Twice now I have turned it on after a few hours, seeing battery drop 6% while off, and then drop 12 to 16% in less than 20 seconds. Is this the battery, or the app which shows the battery charge? Either way its a problem. Seems to have a short in the circuitry. Just went down another 16% in the last 20 minutes with the screen off. Anyone else having this problem? I have even been using it while plugged in and watched the battery charge going DOWN!

    • surajGuest 6 months ago

      Well I have a tab s,, guess wat,, my battery won’t last more deb 4 to 5 hrs with a moderate use like reading books nd using ft nd whatapp .. now its kinda lagging. . Disappointed ..With Samsung didn’t expect dis from tab s!!!!!

  3. waqas muhammadGuest 7 months ago

    I own the galaxy tab s 10.5 and I use it with full brightness with several tasks and during the whole day I get 6 hours of screen on time. With full brightness.

  4. CharleneGuest 5 months ago

    I thought I am the only one having problem with tab s. Mine is also a problem. My tab is also plugged in and I notice the battery is going down instead of charging it up. And I was just scrolling on the net with my battery 100% and then suddenly, after 10mins it will be down to 70%. !! And when it is almost out of battery, I charge it and voila! battery full in less than 30 mins! ! I never thought it would be like this. if only I know, I wouldn’t buy this tab!