The Motorola Droid RAZR Maxx HD was released a little over a month ago, as a clone of the Droid Razr HD, with a beefed up battery. Other than the battery being on steroids, the Razr MAXX HD is identical in specs to its twin. Much has been said about the 3300 mAh battery on the device, and while it did hold out for longer than most other high-end devices currently available, including the iPhone 5 and the Galaxy S3, it wasn’t really put through a series of grinding tests, just to check how real world performance actually is.

All Things D put the Droid Razr Maxx HD through the grind, and performed a variety of stress tests to see how it held up against the competition. For instance, an uninterrupted voice call with WiFi on and a screen timeout set at 30 seconds gave in 22 hours of talk time. That’s almost a day of continuous chatter on a single charge! The iPhone 5 is said to provide 8 hours and the Samsung Galaxy S3 comes in at 17 hours.

Another test involved playing a downloaded video in loop, with the screen brightness set to 75%, WiFi left on, and email service running in the background. The Droid Razr Maxx HD happily chugged away for a good 13 hours before the low battery warning popped up. That’s more than half a day, and definitely a lot more than what could say for any other smartphone out there today.

Naturally, the tests above are not really an indication of what the average user does with his phone in real life day-today usage. To simulate that battery life was also tested on moderate use, with checking of emails, social networking, some music, web browsing, streaming a few YouTube videos over 4G LTE, and the device could still hold up for almost 36 hours on a single charge. Pretty impressive, don’t you think?

Adding more battery intensive tasks such as GPS navigtion, some gaming,and a few more streaming videos, the Razr Maxx HD still managed to last 24 hours, which most other current-day phones cannot match. With all that power, the Razr Maxx HD doesn’t come too cheap, and costs $300 at Verizon with a two year commitment. Another aspect which users may want to think about is that the battery is embedded, and not user-replaceable.

But if you’re a power user, and after a device which can math your step without dying out on you halfway through your average day, then the Motorola Droid Razr Maxx HD is a device certainly worth considering. To read the full report and check other details, hit the Via link below.

Via All Things D