How to Pick the Right Battery For Your Project
OK, so you have a project and now you want to power it off of a battery,how do you choose the best setup? The two easiest cases are the extremes: Is your project very power-hungry? Projectors, large sound systems, and motorized projects all draw on the order of amps of current! You'll want to go with lantern cells (one-time use) or lead acid batteries (rechargable). If you are planning to be somewhat 'abusive' to the battery (heavy-usage, running it down all the way) you may want to look at "marine deep cycle" batteries. Is your project super-small, like an inch on each side? You're going to have to go with a lithium coin cell (one time use) or little lithium-polymer cells like the ones used for tiny RC planes. Here are some other very popular cases: Do you need to make a lot of these things? Go with inexpensive alkaline batteries in popular sizes. Need to be user-servicable? 9V or ...