how long does a Nintendo dsi battery last?
how long does a Nintendo dsi battery last?
How long does the rechargeable battery last before it needs to be charged again?
Battery life largely depends upon the game being played, but it can last about 10 hours, which is comparable to the Nintendo DS Lite.
Fun Fact: The power light on the Nintendo DSi will change from blue to red when the battery life is around 30%.
See here:
| Nintendo - Customer Service | Nintendo DSi - Battery FAQ