It’s an ever-increasing mobile world, and with it comes all the tech stuff we need to get things done. Being mobile means your tech will run off a battery or two. However there are certain items when you should care and other times when you don’t have to.

Point-And-Shoot Digital Cameras

Should you care? Yes.

I won’t buy a point-and-shoot digital camera unless it runs off AA batteries. It is the best and cheapest way to keep taking pictures. Yes, it does add bulk to the camera for the battery compartment, but that small inconvenience is more than worth it.

Camcorders

Should you care? Yes.

It’s always smart to purchase a secondary battery for your camcorder. If possible, buy the secondary with the camcorder at the same time.

Automotive GPS

Should you care? No.

Battery life for automotive GPS devices such as from Garmin, TomTom, Magellan or any other have always been terrible, and it doesn’t look like that will change any time soon. With the screen at full brightness (required for daytime driving use) and the speaker volume at 70% or higher, you’ll get at most 2 hours out of the battery no matter who made the GPS. Furthermore it’s always used in the car, so when the battery dies you just plug in the charger and keep on going.

Battery life on GPS matters for units other than for automotive use, such as for trail or maritime. The Garmin Oregon 550t for example runs off 2 AA batteries, and that matters a lot for a GPS of that type given its particular purpose (it does both trail and maritime).

Cell Phone

Should you care? No.

I know no one that carries around a spare cell phone battery with them. All wireless phones today have a relatively decent talk time concerning battery life. And yes, if you talk for three hours straight, of course the battery will die on you. But for shorter calls and texting, the battery should last for days so it’s not a huge consideration.

What’s more important with a wireless phone purchase is the rated talk talk time and standby time. This doesn’t necessarily depend on battery type, because two phones by two different manufacturers that use the same type of battery will have different talk/standby times.

General rule of thumb: The less features a wireless phone has, the longer the battery will last due to the fact the phone doesn’t have to "think" as much. This is why 10-dollar TracFones have unbelievably good standby times, since the phone has only the most basic of features. It’s also the reason older less-featured cell phones with a new battery in them seem to "last forever".

Laptop Computers

Should you care? Depends on type.

With laptops there are basically three flavors: The netbook, standard and the gamer.

With the netbook (9 to 12-inch screen), yes, battery options definitely count because it’s meant to be ultra-mobile. You should stuff a netbook with longest-lasting battery possible.

With the standard (13 to 15-inch screens), yes it counts. You should stuff that one with a 9-cell. Yes it will cost a pretty penny but it’s more than worth it.

With the gamer laptop (17-inch or higher with a powerful graphics card), no. Gamer laptops are well known to have inferior battery life because of the horsepower required to run them. And even if you stuff in the best battery available, you’d be lucky to get more than 2.5 hours of life before it needs a charge.