The Game Buddy by B.T.I is a rechargeable battery power pack for the Gameboy Pocket.  It can run for over 22 hours per charge when used with a Gameboy Pocket and 2 fresh AAA batteries. The Game Buddy can be charged/used for more than 2000 hours before it needs to be replaced. Using this power pack can save you from purchasing a minimum of 75 disposable batteries.

The unit is made really well. It is made out of a really strong plastic that isn't creaky or cheap feeling. Of course the Game Buddy does add some weight and bulk to the Gameboy, but it is still comfortable to hold. I don't think you'd want to put the Gameboy / Game Buddy combo in your pocket though... I doubt if it would fit. When the Gameboy is in the Game Buddy, none of the controls are obstructed. You can still plug in head phones, adjust volume and contrast etc.  Games are still as easy to insert and remove as well.

The Gameboy Pocket slides into the Game Buddy easily and is held in place by two clips and a metal power prong that fits into the AC adapter power port on the Gameboy Pocket. Once the Gameboy is inserted, the Game Buddy is a snug fit and there really isn't a danger that it will fall off. The best thing about the Game Buddy is that it comes fully charged and ready to use!  I have always hated buying a new gizmo like a cordless phone or something and not be able to use it till it's charged. With the Game Buddy, it's already good to go.

The Game Buddy contains rechargeable Alkaline Manganese (RAM) cells that provide long lasting rechargeable power. These type of batteries last 10 times longer than regular disposable cells, can sit unused for up to 5 yr. without losing power. They also have no memory effect.

If you have regular batteries installed in your Gameboy Pocket, you don't have to take them out in order to use the Game Buddy. When the Gameboy is inserted into the Game Buddy, the AAA battery source within the Gameboy is disconnected. B.T.I. actually suggests that you keep a fresh set of AAA batteries installed in the Gameboy even while you're using the power pack. This way if the power pack is low on power, you can just pop out your Gameboy Pocket and keep using it with the regular installed batteries while the power pack is charging.

When the Game Buddy does need to be recharged, it is just a simple matter of turning the unit over, flipping down the two power prongs and plugging it into any normal household wall socket. The Game Buddy can be recharged this way whether the Gameboy Pocket is inserted or not.  Recharge time is typically overnight (8hrs or so). The power pack has an Electro-Luminous Panel in the face so when you plug the Game Buddy into a wall socket, it lights up like a green night light. This is pretty cool...  It would be even better if the light turned off when the unit was fully charged. B.T.I. recommends that you plug the unit into a wall socket anytime you're not using your Gameboy. This will allow you to get as much use as possible out of the Game Buddy.

I like the Game Buddy and think it makes a great accessory. It saves you money and helps save the environment as well. I'm looking forward to a Color Gameboy version and hope that it incorporated some type of light for the screen.

Price: $29.95 (plus shipping)

Pros:
Saves you from buying a 75 regular batteries.
Can recharge over and over for around 2000 hours of use.
Easy to use.

Cons:
Adds some weight and bulk to your portable game system.
Light doesn't turn off to indicate a full charge.