First Wind-up Phone Charger Review
Jonathan Bennett writes "Here's the first actual review (as opposed to speculation) of Motorola's FreeCharge hand-operated mobile phone charger. Only works with Motorola phones for now, but other devices on the way.
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"Motorola claims that 45 seconds' winding will produce 4-6 minutes of talk time and 'several hours' of standby time."
That's actually not bad at all. The only problem is that if you wind it to get standby back, if someone calls you are likely to only have a minute or so of talking. This seems like an excellent idea for emergencies though.
A "squeeze the handle a few times and you can make a call" unit might be more useful.
Why don't they just do it like watches do?
Or: http://howthingswork.virginia.edu/clocks.html
The point isn't to charge it to capacity, the point is to get your phone running long enough to place a call if your battery goes low.
I don't get many calls on my cell phone, so I get lazy about charging it. If I could wind it up a few times and get 10-15 minutes of talk time (which sounds reasonable based on the article), then it saves my booty if I get stranded or something.
You're operating on impractical assumptions there. Heh.
What they need is a foot pedal. That way you could talk while charging it.
If you read the article, it tells you that for a full charge, you need 35 minutes of charging. 45 seconds will get you the minumum "useful" amount of charge (enough for a short call). However, the best use of this seems to be to start with it fully charged (you can plug it in to charge it up), and then whenever you make a call, or if it's been idle for a day or two, you wind it to top off the battery. That way, when you need to make your 30 minute call, you can do it immediately and pay for it later, rather than having to wind it for 20 minutes before being able to perform that emergency heart surgery...
This is a self-referential sig
One use they don't bring up that they should is being able to use cell phones where there isn't any electricity to charge them. In a lot of the poorer countries they are going straight to cell phones and skipping laying copper. The lack of electricity to charge the phones has been one of the stumbling blocks for getting phone service to some really remote areas.