Batteries
Zinc Carbon – One of the most basic batteries also it’s a cheaper alternative to the alkaline. This batteries isn’t suitable for projects that require high output also the voltage drops during use.
Alkaline – The most commonly used battery and longer life than the zinc carbon batteries. However it will cost you more to buy alkaline batteries than the zinc. Another advantage of the alkaline battery, its voltage level doesn’t fall as quickly as the zinc carbon battery also has much higher capacity which means it’ll provides more amps per hour.
Silver Oxide – Very small 1.5V button cell commonly used in watches, clocks, calculators, cameras, and many miniaturised electronics goods, where size and power are important. One of the good things about the silver oxides are, it provides almost constant voltage level until the battery is drained of its chemical (discharged)
Lithium ion – They are small coin shaped batteries, outputting 3volts to components. This battery is used mainly in watches as it has a super long life battery also it is used in a computer to keep the bios chip in the motherboard active while the computer or laptop is turned off.
NiCad Rechargeable – Nickel cadmium battery is rechargeable meaning its reusable. It’s also more environmentally friendly. Thi NiCad batteries are available in standard alkaline size: AAA, AA, C, D. The recharge able battery only output 1.2 volts instead of the standard 1.5volts; this means you will require more batteries to operate your project.
Live Cell – Live cell is a self-recharging battery and very eco-friendly. Livecell is a self-recharging battery that harnesses power from your movement. It can be used for any device but it's particularly great for small devices like remote controls, cordless mouse, small clocks, Wiimote etc. When the batteries of these devices run out, you don't even need to take it out, for example, when the batteries of your TV remote run out, just shake it for few minutes and it it would get enough charge for next few days. The battery itself out puts normal 1.5v or 3.7volts for camera device. It has a massive 2500 amp per hour which will last a while before second charge.