its not a fake batt, thats the right amount of hours you're getting for the slim batt.
Let me explain, the original phat batt is 1800mAh. when put on the phat psp, lasts about 5 hours playing games STRAIGHT.
The original slim batt is ONLY 1200mAh, when used on the slim lasts abour 5-6 hours playing games STRAIGHT.

the difference? Slim has an added advantage because:
1) It is designed to consume less battery power thus making it lasts longer
2) with a smaller battery capacity, you take LESS time to fully charge the batt and get to play MORE or equal compared to the phat.

Let me note that when the psp is in sleep mode, it DOESNT take alot of battery at all. you can leave your psp in sleep mode for 24 hours without charging and it wouldnt even move 1%

Also, you can leave your wifi switch on as it doesnt take up batt. it takes up batt ONLY when you connect the wifi or use Ad-hoc.

Lowering brightness helps, maybe 1 or 2%? It is worth it if you're willing to hurt your eyes playing with less backlight for hours.

Its possible to have 10hours of gaming with the slim. Go get the 3600mAh phat batt and buy the new phat batt cover for the slim. The cover and batt is done by third party companies. Go google it.

This post has been edited by Ryuuga: Nov 8 2007, 09:40 PM

nah, mine from low batt(auto switch off) one hour plus at most 2 hours full de =P
See the orange light, if it goes off then you'll know its full ^^

This post has been edited by Ryuuga: Nov 10 2007, 12:13 PM

I really think the 8 hour thing is unnecessary because
1) by one hour or so, the batt fully receives enough power thus cutting off extra incoming power to the machine
2) Overcharging the batt will cause the lithium battery to bloat up like a puffing fish and eventually unusable

Ways to overcharge:
1) Charge the batt until it is full
2) Plug it out and plug it back in again, you will see the orange light lighting up
3) When the light turns off it is full, repeat step 2.

Keep repeating those steps everyday for a month or so, the batt will overcharge and spoil. it DOESNT give you extra batt power, so be careful of that. Don't go thinking "eh? still can charge la" then plug it back in again. Your batt spoils faster =P

That applies to ALL the handhelds, Ipods, hp, DS etc etc

Lol i play almost 12 hours a day(morning till night) and I only have to take 1 hour or so to charge it once mid day. So technically even if you're hardcore, you don't need an extra batt for psp lol. It should be more than adequate.

Not sure bout Slim batt, The last time i bought my fat batt(2200mAh) was about rm80 if im not mistaken. Even that is overpriced. I was desperate cause my original batt was bloated up =/
Now i use my original batt(modded with 3 AAA batts) as a pandora battery

This post has been edited by Ryuuga: Nov 12 2007, 10:28 PM

I know you're trying to help, but youve got it all wrong >.<
1) First of all, it doesn't matter if your wifi switch is on as long as you don't connect it.
2) PSP slim uses LESS batt power compared to phat therefore it lasts relatively longer even though it has a smaller batt capacity (Slim approx 6 hours game play, phat 4 to 5 hours game play)
3) playing games through the memstick uses less batt power compared to using UMD because the machine doesnt have to use extra power to constantly read the UMD disc and saving it in the cache

^^