Ondrej Holzman New iPad brought a number of improvements - a high-resolution Retina display, more performance, probably double the RAM and fourth-generation network signal reception technology. However, all of this would not be possible if Apple had not also developed a new battery that powers all these demanding components…
Although it doesn't seem like it at first glance, the newly upgraded battery is one of the most essential parts of the new iPad. The Retina display, the new A5X chip and the technology for high-speed Internet (LTE) are what are very demanding on energy consumption. Compared to the iPad 2, for the third generation of the Apple tablet, it was necessary to create a battery that could power such demanding components and at the same time be able to stay on standby for the same length of time, i.e. 10 hours.
The battery of the new iPad therefore has almost twice the capacity. This rose from 6 mA to an incredible 944 mA, which is a 11% increase. At the same time, the engineers at Apple managed to make such a significant improvement practically without major changes in the size or weight of the battery. However, it is true that the new iPad is six tenths of a millimeter thicker than the second generation.
According to information from the iPad 2, it can be expected that the battery will cover almost the entire interior of the device in the new model. However, there was not too much room to maneuver and increase the dimensions, so Apple was probably able to significantly increase the energy density in individual parts Li-ion lithium-polymer batteries, which would be a rather significant success, with which they may have set the future of their devices in Cupertino.
The only question apparently remains how long it will take to charge the new powerful battery itself. Will the 70% increase in capacity affect charging and will it take twice as long to recharge, or has Apple managed to deal with this problem as well? What is certain, however, is that when the new iPad goes on sale, it will be the battery that will attract the attention it deserves.
It is likely that the same battery will appear in the next generation of the iPhone, which could theoretically offer a longer battery life than the iPhone 4S with the support of LTE networks. And it is possible that one day we will see these batteries in MacBooks as well...
May I ask where this information about the increase in capacity comes from? Thanks…
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You didn't look at the tech spec on apple.com?
lithium polymer, not li-ion.
Thanks, fixed.
By six tenths of a centimeter :-), by six tenths of a millimeter, it would be an increase of not even 1 mm
6 destatin centimeter is 6 millimeters... and that's crazy that the ipad is 6 mm thicker, the article is written correctly ipad 2 thickness 8.8 new ipad thickness 9.4 the difference is 0.6 mm which is 6 tenths of a millimeter
No, it's really six tenths of a millimeter. The iPad 2 was 8,8mm thick and the new iPad is 9,4mm thick. So by 0,6mm.
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By six tenths of a centimeter :-), by six tenths of a millimeter it would be an increase of not even 1 mm"
Yes, there is exactly such an increase, by 0,6 mm :P
It's a shame that "LTE" will most likely be unusable in Europe.... :-(
So they could then produce such a powerful battery as a spare part for "old" iPhones. I probably wouldn't regret the investment there. I have a 4S and the performance is great, I don't need the higher one, but if it lasted twice as long on one charge, I would be happy.
lithium-polymer battery = Li-Pol, in my opinion, it will not have such a long charging time, as the current drawn from the battery increases, the charging current can also increase, which in some cases can be 10 times greater than the discharging current
If I ignore the classic contradiction between batteries and accumulators - isn't the capacity of the accumulator measured in ampere-hours or milliampere-hours? Or just new units in Apple? The words connected about "energy density" is also like from star trek ;)
Energy density is a completely free term and refers to a unit of battery volume.
It's as simple as slapping it - the specification says that the battery has a capacity of 42,5 W, the charger has a capacity of 10 W (again according to the specification), so charging from zero to 100% will ideally take 4 hours and 15 minutes. An ordinary USB port has 5V / 0,5A = 2,5 W = charging will take 17 hours (= an ordinary USB port will not be enough even for the normal consumption of the iPad, let alone to charge it). The charging "USB port", which only some machines have, is capable of giving approx. 5,5 W max. = charging a switched-off iPad in about 8 hours or +- covering normal consumption (switched-on iPad will neither charge nor discharge).
The 42,5W battery is quite powerful anyway, cheap laptops often don't have more, the Macbook Pro has 60W...