Remember that 1350mAh extended Palm Pre battery that Seido released back in July? Childs play. Accessory manufacturer Amzer has gone and made an absolute beast of a battery; one that pats the Seido battery on the head, gives it a juice box, and tells it to go take a nap.

Coming in at roughly 3x the thickness of the original battery, Amzer’s electric enormity checks in at an outright absurd 3800mAh, or a little over 3 times the juice provided by the Pre’s default 1150mAh pack. Even if you’re a GPSin’, Data-gobbling fiend, you probably wont be able to kill this thing in less than 2 or 3 days of (really, really) heavy use. So go ahead – go on that Safari, hike that mountain, whatever; you can leave the charger at home.

Of course, packing the dimensional equivalent of 3 batteries into the back of the Pre means you’re going to need a new back case to wrap it all in. And yes, it is ugly as all hell. Sure, they’ve gone ahead and curved the edges and matched the plastic – but it still looks like a door stop. But come on – it’s a $130 dollar battery for people who are away from outlets for days on end. With stuff like this, it’s function over form.

Amzer is also now offering a slightly less ridiculous (in both size and price) 2800mAh battery for $90 bucks a pop.

[Via PreThinking]