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Battery and SIM
=================
The battery life of the shipped BL-5J (1320mAh) battery in N900 seems
very deficient and it was not able to make it through a full working
day with an internet connection and call usage. In a press release
Nokia stated they are aiming at "'one day of full usage'" or "Always
online : Up to 2-4 days (TCP/IP connected)" and "Active online usage:
Up to 1+ day". Early reports from users range from 12 hours (Wi-Fi on,
web browsing, video and some GPS), to about 2 days online but not used
continuously. The value appears to be highly dependent on the user's
choice of background software, active desktop widgets, IM and email
polling, as well as mobile network signal quality (especially 3G) and
in some cases, software bugs. Nokia reported talk times are around 9
hours with GSM and 5 hours with 3G. Battery life can be extended
significantly by switching off GPS/A-GPS, Wi-Fi, and Bluetooth and by
replacing 3G by 2G / GPRS.

While previous Internet Tablets used larger batteries (1500 mAh
compared with the N900's 1320 mAh), they are based on a less efficient
microprocessor. Typical battery time for the Nokia N810 is around 7
hours of continuous full usage, display and Wi-Fi on. In principle, on
N900 figures are expected to be much higher. Third party extended
batteries up to 2400 mAh capacity are available for the N900. Also,
there are community supported modifications that can be performed on
3rd party N900 compatible batteries, usually involving putting two of
said batteries in parallel, which can increase the effective battery
capacity of the Nokia N900 to over 3000 mAh.

The SIM card is located under the battery which can be accessed by
removing the back panel of the Nokia N900. The microSD(HC) card socket
is also located under the back cover (but not under the battery). No
tool is necessary to remove the back panel.

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SOURCE: gopher://gopherpedia.com/0/Nokia%20N900
2018/12/17 17:52