During our indepth hands-on with the BlackBerry Bold 9930 at BlackBerry World 2011, we pulled the battery cover off the device and saw a new battery that had a grey and blue wrapper on it. It turns out that particular device was a slightly older engineering unit that didn't feature the final production battery. To clear things up and make sure we got it right, we went back for another look at the new touch Bold and took some photos of the production JM1 battery as you can see in the photos above and below.
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The JM1 battery is 1230mAh, which is a bit smaller in capacity than the 1550mAh MS1 battery that's been used in the Bold 9000 and 9700/9780. The footprint of the battery is about the same, but the JM1 is definitely thinner as you can see in the comparison shots below. During our press briefing session this week on the device I asked about RIM's expectation of battery life on the 9900 / 9930, seeing as there's a smaller battery but a higher performing processor, and RIM seemed very confident in the battery life. RIM's always put battery life as priority, and they haven't sacrificed the user experience here - so expect the device to power you through a full day of work and play. With the new Bold being the thinnest BlackBerry to date they needed to go with a slightly thinner battery. And for power users who eat through batteries regardless, the good news here of course is that you can always buy a spare battery and swap it out if you need to - I'm glad to see RIM still allowed for a removable battery on the new Bold.
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