Cashoo said:Ok well I test this battery LUPO DSi battery and the the one that comes with the DSi.
I tested both batteries on full brightness on the menu screen of 'New Super Mario Bros.'
Standard DSi battery
Time lasted: 3 hours 45 minutes
LUPO battery:
Time lasted: 35 minutes
It might of been a faulty battery but it probably wasn't.
I've had an experience similar to this with my DSlite. I bought a 2000mah battery to replace the original 1000mah one. At first, I thought I got burned because the battery life lasted about 1/5 the time of the original, but after a FEW charges, the 2000mah battery started lasting longer. Now, it DOES last longer than the original...about 50% longer. Trust me, go through a few charge cycles on the new battery before passing judgment. It seems that the DS didn't charge it fully the first few times, or the battery didn't reach it's full capacity for a few charges. I don't know what the deal was exactly, but it works great now.