Quote:
Originally Posted by twintowertwo
Good thread. I too thought my Blackberry USB would charge the PRS-700 (wrong).
Questions:
How much faster does the PRS-700 charge with the plug-in charger as compared to the supplied USB connected to my PC?
Does it depend on my PC in any way?
About how long should it take to charge from dead to full using the USB?
Thanks!
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As per manual, a depleted battery will take approx 4 hours to recharge via USB and 2 hours via A/C, but I wouldn't recommend depleting the battery below 3/4 if possible.

There are a few threads around dealing with lithium ion batteries.