Hiyaa, today i bought an GBA sp

but a used-one

the guy i bought it from bought it last year in March

but the question is

->does anyone has a GBA sp with a new battery ?i mean does anyone know how long the battery stays good ?

is it like an GSM battery,after a good 5 month's i had to buy a new battery :(

As far as I know, lithium-ion batteries are quite good and should last you a while. But I can't tell much more.

Approx 6 years. By then we'll move on from the GBA. XD