What is the difference between Ni-Cd, Ni-MH, and Li-ion?

Ni-Cd (Nickel Cadmium).

Ni-Cd (Nickel Cadmium).

This is one of the oldest cell types and is generally only found in older laptops. The main pro for this cell type is its ability to handle higher loads, and therefore is more commonly found in portable power tools or devices that need a lot of power to work efficiently. The main downside of this cell type is that it is notorious for suffering with memory effect so good care must be taken with this battery to ensure most effective use of battery.

Ni-MH (Nickel Metal Hydride).

This cell type is the most common cell type currently available for laptop computers, (although Li-ion is rapidly becoming the most popular) This battery type is relatively cheap to manufacture and therefore tends to be cheaper than Li-ion. This cell type is prone to memory effect' so it is important to take good care of your Ni-MH battery to ensure that you obtain the best running times.

Li-ion (Lithium Ion).

This is one of the newest cell types available. It is also the lightest battery type currently available on a commercial basis and can provide more power than the other

main cell types. There are no known problems of memory effect with this battery type and it is the easiest battery type to care for. The downside of this battery is that it has the highest engineering costs and therefore the price is usually considerably higher than other cell types.

What is the "Memory Effect"?

Ni-Cd batteries, and to a lesser extent Ni-MH batteries, suffer from what's called the "Memory Effect". What this means is that if a battery is continually only partially discharged before re-charging, the battery "forgets" that it has the capacity to further discharge all the way down.

To illustrate: If you, on a regular basis, fully charge your battery and then use only 50% of its capacity before the next recharge, eventually the battery will become unaware of its extra 50% capacity which has remained unused. Your battery will remain functional, but only at 50% of its original capacity. The way to avoid the dreaded "Memory Effect" is to fully cycle (fully charge and then fully discharge) your battery at least once every two to three weeks. Batteries can be discharged by unplugging the device's AC adaptor and letting the device run on the battery until it ceases to function. This will insure your battery remains healthy.

www,aus-battery.com is a manufacturer representative and distributor of laptop batteries, laptop adapters, camcorder batteries, digital camera batteries, power tools batteries, battery chargers, iPod accessories, mobile phone batteries, PDA batteries, memory cards, scanner batteries, game player batteries, DVD player batteries, FM transmitters, audio speakers, headphones and other accessories.

All our batteries, laptop adapters, battery chargers are shipped from Alexandria,NSW 2015,Australia.

What is the difference between Ni-Cd, Ni-MH, and Li-ion?

By: ausbattery

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