Game Boy Advance SP 3X Extended Life Battery Pack by Pelican gives you 3 times the battery life, thus 3 times the playing time. In addition, Pelican's quick charge capability gets you back in the game when you do evenetually run down.
Battery Life (Back Light On): 28 hours
Battery Life (Back Light off): 50 hours
Rechargeable Life Cycle: 500times
Comes with a high-grade lithium
battery to guarantee extended hours
of game time & complete safety for your GB Advance SP