[quote name='skyknight']Gotta know that a Li-ion battery is not like an alkaline battery; you will lose charge even not used, whether in laptop, iPod...
Plus, the PSP battery technology (and power management) is quite old, as the Vita doesn't lose its battery charge as quickly as the PSP.
Long story short, even if you don't use the batteries in your PSP, it will lose its charge. This is not a factory defect, as the short battery life was one disadvantage that the PSP had against the DS. This is a fact that you have to accept as a PSP owner.[/QUOTE]
Ya I know that PSP uses Li-ion, and I have other devices that use Li-ion like an Ipod and those devices do not leak. I go back to my Ipod after weeks and it's still at the same level. But ya ok PSP battery leaks and it's normal. It just leaks incredibly fast.