- May 16, 2010
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The phone only draws the amount of current it needs. The CURRENT RATING of the charger doesn't matter. If it's too LOW it will charge slowly, if it's too high it will only take what it needs. Most cell phone chargers max out at 1AMP, usually less. The Blackberry (or any other cell charger) will be fine. I've used "universal USB chargers" and AC adapters rated as high as 2 amps on a phone that came with a 500ma charger for years.
Micro USB is 5 vdc, but you have to watch the current (amps). Palm Pre has a full amp. I'd be surprised if the EVO isn't the same.
