Flashcarts also use more battery I believe.

At least you get 5 or 6 hours with a DSL. I get 2 or so with my DS phat.

 

: O

I didn't know that at all!

 

Ive also heard the flashcarts drain more power than a normal game cart. But yes all batteries lose charge over time, there's nothing you can do about that.

Best way to keep them working as long as possible that I know of is not to over charge, such as leaving recharge able items on the charger all the time, unplug them once there fully charged.

 

My XL would only last around 6-7 using full brightness

 

lol mine must be at about 25% then lol got mine for years and i can still play like 3-4 hours be4 it turns red

 

The "by" is implied in the way he said "drops [by] about 25%", not "drops to about 25%".

Either way, it says about 30% (it says it drops to about 70% of original capacity).

 

ds lite's battery of mine can get through:


with slot2 inserted:

full brightness: 3hours
lowest brightness: 7hours

without slot2 inserted:

full brightness: 12hours
lowest brightness: 17hours

lol?

 

Hmm, im pretty sure its after 500 FULL charges.
So say you have 50% battery life and you charge it to 100%, that would mean you only used up HALF a charge.
Ive had my DS lite for over 2 1/2 years and played it most of the time, probably charged it more than 500 times but
i haven't noticed any decrease in the life. Maybe since i charge when the battery is around 40%-60%. Anyways
thats my main point.

Back ontopic, have you tried using another battery? Just to see. Maybe you've bought some
sort of defective unit? Anything is possible in this world we live in xP.

 

mines last for 8 hours or so