What exactly is a battery?

Batteries are devices that store energy to be used later. Chemical energy is changed into electricity, to power your remote, bathroom scale, boat,...

How many different kinds of batteries are there?

Almost too many to count! Batteries are typically classified by whether or not they're rechargeable, and then by what elements they use to create e...

How long should my batteries last?

There's no simple answer to that question. Some factors that affect battery life are usage, temperature, and (in the case of rechargeables) how the...

What is the "memory effect" that happens with some batteries?

Some types of batteries, particularly NiCad and NiMH, can experience a decreased capacity if you don't regularly let the battery discharge all the...

Can I recycle my batteries?

Sometimes. You shouldn't put them in your weekly recyclables/trash, however. Look for a collection point in your area, or see if your local governm...

Will my batteries really last longer if I keep them in the fridge?

Actually, that depends. Most batteries used to be made of zinc-carbon, which did last longer when stored at colder temperatures. But, that doesn't...

Which battery is better for everyday use: rechargeables or not?

Six of one, half a dozen of the other, in most cases. You'll notice with rechargeables that they start to lose their charge more quickly as you use...

Is it less expensive to buy my batteries online?

Depending on where you shop, yes. There are several reputable online battery stores that offer great deals and an even more impressive selection. T...