Now that we finished with our HTC One review, we took our time to give you the detailed breakdown of the smartphone’s battery stress tests.

The HTC One is powered by a 2300 mAh Li-Po battery unit that handles the latest quad-core Snapdragon 600 chipset. So, how did the HTC One do? Here we go. Read more »

The Samsung Galaxy S4 is about the same size and weight as the Galaxy S III, except that the new model is slightly thinner. Even so, the battery capacity has increased by 500mAh to a nicely sounding 2,600mAh total.

Still, that battery has to feed four Krait 300 cores and a bigger screen with over twice the number of pixels. Let’s see how the 2013 flagship from Samsung compares to the one from 2012. Before we continue, we should make it clear that we’re using the I9505 for this test, that’s the Snapdragon 600 chipset and not the Exynos 5 Octa. Read more »

The LG Optimus G Pro brings several upgrades over the regular Optimus G, including a big 3,140mAh battery, but also a new screen and updated chipset. Let’s find out if the increase in battery capacity offsets the higher power demands of the screen, which is both bigger and higher res.

Before we go on, we’d like to note that our Optimus G Pro review unit (which came from Korea) has a spare battery and a battery charger/phone stand in the box. The international version might not have these goodies. Read more »

We already gave you our Samsung Galaxy Grand Duos review, but now it’s time to examine the battery life of the smartphone in great detail. You already know the final score, but let’s see how the different parts of the dual-SIM phone’s performance stand in comparison..

With a 2100mAh battery and a modest WVGA resolution you would always expect the Samsung Galaxy Grand to do well even if has a large 5″ screen to power and dual-stand-by to cater for. Read more »

Sony Xperia Z was announced back at CES in January and its popularity grows bigger by the day. We have already had the Sony Xperia Z for quite a while in our office and its in-depth review is over here but once the MWC wrapped up we were also able to complete its battery test.

The smartphone has a large 2330 mAh battery to rely on, but the quad-core Krait CPU and the 5″ 1080p display are known to consume quite a lot of power. The fact that the battery isn’t user-replaceable puts even more pressure on the Xperia Z to do well here, and we were as curious as you are to find out if that’s actually the case. Read more »

We approached the Nokia Lumia 620 battery test with mixed feelings. Windows Phones had hardly topped our charts so far and the meager 1300mAh battery of the Lumia 620 didn’t bode well. Still, we had certain hopes for it as its screen is not that big and the dual-core CPU is clocked only at 1Ghz.

Battery tests are time-consuming affairs and we’ve had several of those piling up. The Lumia 620 review has been published for a while now, but it’s only now that we are able to publish its detailed battery performance test. Jump after the break to get the full account. Read more »

The Asus Padfone 2 was announced just prior to the 1080p boom of 2013 but still has qualities everyone loves and yearns for in a smartphone – capacious 720p screen, potent quad-core processor, pixel-rich camera, Android Jelly Bean, etc.

And coupled with a slate it’s a really hard to beat combo, price-wise. But does its battery have the chops to last for more than a day – find out in the breakdown after the break. Read more »

The Samsung Galaxy Xcover 2 is one of the few smartphones with IP67 rating – it combines simple durability and advanced functions, so it needs to prove its endurance both when trekking in the wilderness, but also when enjoying modern conveniences like browsing the web.

A 1,700mAh battery is on the low side of what we would have imagined for a phone that’s likely to spend a lot of time away from an electricity socket, but let’s see if the Xcover 2 can counter the limited capacity with efficiency. Read more »

Samsung’s just-released LTE-toting midranger, the Samsung Galaxy Express, is the company’s first dual-core Krait offering for the international market.

It not only offers LTE connectivity for emerging LTE markets in Europe and Asia, but also comes with a beefy 2000 mAh battery, which churns out some great performance when combined with the latest Android Jelly Bean. Read more »

The BlackBerry Z10 has serious ambitions to become the business phone, but there’s one major requirement – it should be able to last during long hours spent at the office or traveling between meetings.

With a 1,800mAh capacity the Z10 battery isn’t the biggest around, but it has an OS designed just for it at the moment (unlike Android that runs on many different devices with many different chipsets). Read more »

Our review of Sony Xperia E dual is done, so we took our time to do a proper battery test. The results are ready for you to check out.

The Xperia E dual us running on a dated single-core chipset and comes with a 3.5-inch HVGA display, but features dual-SIM functionality with dual stand-by support. The smartphone draws its power from a 1530 mAh battery. Read more »

The Oppo Find 5 has ambitions of playing in the big leagues – it certainly did well enough during our review to be allowed entry. But high-end phones with their powerful chipsets and big screens can munch through a battery in record time.

Good thing it has a 2,500mAh battery – Motorola’s MAXX phones aside, most 5” or less phones have far less juice. The battery’s non-removable, too so it’d better be good. Read more »

Yesterday we published our in-depth Galaxy S II Plus review and now is the time to share the details of its battery test with you.

The smartphone offers the same battery as its predecessor, but offers a more efficient chipset and a new Android release, which should lead to an improvement in its endurance. Read more »

Now that our review of the Nokia Lumia 510 is over, we are ready to share the details on the smartphone’s battery test. It’s the first smartphone to run on Windows Phone 7.8 and is probably the one with least powerful hardware, so we were interested how it would do.

The Lumia 510 shares many specs with the Lumia 610 we met with last summer, but comes with a 0.3-inch bigger display (that’s a more space to light up) and 4GB less of storage. Read more »

Placed comfortably as the company’s top mid-range model, the LG Optimus L9 is a droid that should be on your check list when shopping for a stylish smartphone offering great bang for your buck. It’s now time to check how it does in our traditional battery test and how it stacks up against its direct rivals.

Naturally we put the LG Optimus L9′s battery through its paces in our traditional battery test to see how far it can take you in everyday situations. Read more »