I've had mine now for a couple days and I'm very happy with it. Initially I bought a different "grip and recharger" for $16 + shipping but one of the four clips broke off after just a week so now it's basically unuseable. Plus the battery in the other device was questionable. So I've been looking for an alternative and for the most part I think I found it.
Pros
Goodbye hand cramps! No more accidentally hitting the power switch.
Surprisingly, the air cooling works pretty well (there's a separate on/off switch for this).
Holds PSP extremely securely.
Excellent build quality, nothing to break off.
Comes with a car charger, works with your PSP charger.
Keeps your PSP charged while not in use.
Cons
It's huge, very. It can travel in your book bag or laptop case but not in your pocket.
Will need to undock to access UMD slot.
Battery status LEDs on top too bright and distracting (I covered it with black electrical tape).
Speakers are lower quality than PSP's, no way to circumvent except to use headphones. BUT they are useable, just not great...think "tinny."
What I would improve
Remove the air cooling. It's too big and only somewhat useful.
Move the batteries to the handles (currently used to direct cooling air) to make the device flatter and more portable.
Improve the speakers or allow them to be bypassed in favor of the PSP's speakers.
The grip comes with four generic 1600 mAh 1.2 v NiMH rechargeable batteries. I switched them out with my own Rayovac 15 min rechargeable 2000 mAh 1.2 v NiMH batteries. Considering that the PSP's own battery is only 1800 mAh at 3.6 v. Compared to the internal batteries my set-up delivers an additional 148% more battery power. So power plus ergonomics, not bad!
Lastly, I bought mine for $37 + $10 shipping at PSPgripdock.com that somebody had linked to. It seemed kinda sketchy so I called the owner of the website and he sounds like a young guy but honest so I gave it a try via PayPal. He sent it with FedEx tracking and I received it two days later. The label suggests it was sent directly from Vector Manufacturing. So from my limited experience with this guy I would give him the thumbs up as an honest retailer.
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