Do Dells come with a battery saving app?

That's the option to stop charging at less than 100%, and not to top off until the % drops a significant amount. This reduces the number of times the battery gets topped off due to self-discharge. e.g. Sony lets you stop charging the battery at 50% or 80%, and won't recharge unless the battery drops significantly below that. On Lenovos, the percentage are user configurable. I run my dad's Lenovo at 90% to stop charge, and 80% to start charge. So if he leaves it plugged in, it will only top off about once a week.

What does this do? It seems the fastest way to kill battery lifespan is to repeatedly top off the battery while it's close to 100%. The three Toshibas I've owned have all done this. They'd charge to 100%, stop charging, battery self-discharges to 99%, and immediately start charging again to 100%. Consequently they'd top off ever 1-2 hours. Within 18-24 months, the battery life on each of those Toshibas had dropped to 5-15 minutes because of this. Toshibas are now off my shopping list for this reason.

It's the reason why a lot of people recommend removing the battery from the laptop if you're running off AC - if the battery isn't in the laptop, it can't be topped off.

So I'm shopping for another laptop, and am wondering if Dells have this battery-saving feature.

 

The laptop in my sig (DELL), has a option where you can turn off battery charging, but only for the duration of the startup....
Meaning when you restart (or shutdown and turn back on) it will start charging again.

BTW, thanks for telling me about this, I didn't know that could be why my batteries get worn so quick.

 

As far as I know dell doesnt come with a battery saving app. You might want to find a 3rd party one