does the flashcard affect the power consumption used by the ds? i know the games have have an effect on the battery life of the ds but the flashcard?
i have a 6 month old dslite and a fake dstt clone the battery life of my dslite last only up to 7-8 hours and it red lite if i use it till its dead i can go up to 10-11 hrs
so do i have bad battery or is it because of the card?
Flashcards use a bit more battery than normal game carts, but the effect shouldn't be noticeable (except with the DSTWO).
I'm pretty sure the reason your DS Lite's battery doesn't last as long as it should is because it's already years old. You might only own it for a couple of months, but it must have been produced way before you got it, and batteries lose power as they age, so...