Quote:
Originally Posted by Solitaire1
That's always been an issue for me when it comes to non-user-replaceable batteries: Why can't devices be designed to use already-existing standard batteries? I would gladly take a larger device (and would actually welcome it since many devices are too small to fit comfortably in my hand) if it used two/four rechargeable AA/AAA batteries that you can buy for around $20(US) and last about 2 years of regular use.
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For many devices, AA batteries don't provide enough power to provide a sufficiently long runtime. For example, one device I have here has a Li-ion battery, 1850 mAh battery at 7.4 volts, which is 13.69 Watts of power. A typical set of 4x AA rechargeable batteries provides 4x 2400 mAh at 1.2V, which is 11.52 Watts. (There are batteries that are more powerful, like 2600 mAh, or if you want to spend a lot, >= 2800 mAh.)
OK, it is close, but the Li-Ion battery is *much* smaller and thinner. The Li-ion is about 30% of the size of those 4 batteries.