Lyte Edge said:
What's the DS battery life supposed to be, anyway? I used to be worried about the whole "you can only charge the unit up 500 times!" when the SP came out, then I realized how long that would take anyway.
I tanked my first SP battery, but keep in mind I was playing it heavily and doing my job (which also involves playing it heavily). Most players will be fine for a long while yet, and the "500 times" just means that past 500, battery life will start decreasing at a noticeable rate (ie: less total capacity with each recharge).
But what if I were to plug the game in to play even with the battery fully charged? That wouldn't count as a charge, right? They mean 500 full charges, correct?
Yeah, you're fine. Theoretically Lithium Ion batteries suffer damage with every charge, but the thing is with a shorter charge there is less stress on the battery chemistry, so shorter charges is actually a way to extend your system's lifetime.
Keep in mind that having a full or empty battery is actually a
bad idea (hence systems not coming fully charged):
1. Full discharge (using the entire battery before recharge) puts a lot of stress on the battery both in use and charging. Leaving it empty can cause capacity damage after a few days, and if left for too long at empty, the charge will fall below the minimum voltage needed, killing the battery.
2. Full charge (leaving the system at 100% or close to it) will cause damage over time (20% per year). If you're not going to use the system for awhile, knock the charge down to around 40-50% (at which point you could only lose 4% per year). Temperature also helps the battery, so if you have to store it at full charge, keep it in as cool an area as possible (0c being ideal).
Obviously, take the battery out in such a case because the rest of the hardware probably won't respond to the temperature so well.
Summed up:
-Partial charging is ok and recommended
-Don't leave it maxed out all the time
-Don't leave it empty
-For the love of god, don't store your system (or use from a full charge) in a hot place. At best it will damage capacity, at worst (and this is rare) the battery can explode. Most laptop battery failures/explosions happen inside parked, heated cars)