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Old 06-18-2007, 11:35 PM   #1 (permalink)
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Default Recharging Blackberry with portable battery charger?

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I purchased a "portable Battery Charger" for the ipod. It's just a small case that you can insert two "AA" batteries into and it has a USB port on it.

technical specs are:

Operating Voltage is between DC2.2V to 3.2V
Output Voltage - 4.3V to 5.1V
Output Current - 250mA max
Under voltage shut dwn threshold - 2.1V to 2.3V
Input voltage less than 2.2V - power LED will turn off.

This item is being blown out everywhere for about $6-$9.

Will this safely recharge my Blackberry?

Old 06-29-2007, 05:24 PM   #2 (permalink)
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Wirelessly posted (7290: BlackBerry7290/4.1.0 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/101)

It ought to work just fine. The USB spec calls for USB provides 5 +/- 0.25V which this device appears to supply. I use the USB charger from my wife's Razr at least once a week, so generic USB chargers work OK for me.
Tom Coradeschi
Old 06-29-2007, 06:16 PM   #3 (permalink)
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I have tried three similar devices. One was that disposable battery pack so frequently sold in airports over the past few years. Didn't work worth a squat, it drained my battery (both of the blocks). The second was a single AA powered device that didn't drain the battery, provided a bit of a boost. The Energizer two-battery version was the last I've tried and worked the best. I keep that one around w/ some NiMH batteries normally used in digital cameras. -Pk
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