Which type of battery should I buy for outdoor power supply

What type of battery should I use?

The most commonly used battery of all is an alkaline battery (meaning it contains an alkaline electrolyte, usually potassium hydroxide). Best use: "Low-drain" devices such as LED headlamps, LED flashlights, toys, remote control devices, clocks and radios, and even moderate-drain items such as lights using incandescent bulbs.

What size batteries do I Need?

Figure out what size batteries you need: This is simple. If your gadget runs on AAA batteries, then that's what you need. You can look on the device itself for an indication of what battery size it takes, or consult the instruction manual.

What are the different types of single-use batteries?

The two main types of single-use batteries are alkaline and lithium. Pros: Cheaper upfront cost than rechargeable batteries. Very low self-discharge rate (power loss when not in use) for a long shelf life. Widely available. Cons: Require disposal after fully discharged.

Can you put a battery in a fire?

Never put batteries into a fire. Doing so could cause them to rupture and spill their contents. Also: Avoid tossing them into a metal container where heat could build up. This battery guide lists pros and cons of the batteries (NiMHs, lithiums, alkalines and more) that power your outdoor devices.