Ni-CD: Memory effect with small capacity
Ni-MH: Memory effect small capacity large.
Lithium ion: No memory effect body thin capacity, due to different electrode materials, electromotive force 3V or 3.6V range. Lithium battery is the same volume of the largest battery, widely used in digital cameras, notebook computers, mobile phones and other electronic products.
Lead storage: electromotive force of about 12V, lead-acid battery can be used repeatedly charge, electrolyte is sulfuric acid solution, internal resistance is very small, widely used in automobiles, motorcycles.
Lithium iron: Electric power is more adequate, safer and lighter, the main direction of future electric vehicle development.
In general, the same kind of rechargeable batteries, the larger the capacity, the greater the quality.