| Three main types of rechargeable
| |
| | "memory-effect" quite as much. Following
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| batteries are used in newer technology
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| | the proper steps for charging and
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| hand held devices. Scientists are
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| | discharging in NiMH batteries is very
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| constantly trying to develop batteries
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| | important. NiMh batteries need smart
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| with better technologies that make them
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| | chargers which prevent them from
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| faster, more powerful, and more
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| | over-charging. It is also important that
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| lightweight. In the past, the only type
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| | they are not run flat in a portable
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| of rechargeable battery available was a
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| | device, which creates reverse charging,
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| lead-acid battery, which contains liquid
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| | which can completely damage the battery.
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| and must be kept ventilated in an upright
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| | Most devices detect safe discharge
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| position. Though still used in autos and
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| | voltage and shut down automatically. In
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| motorcycles, scientists have developed
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| | this case, NiMH batteries are much more
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| gel-batteries, where the liquid is
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| | effective in high drainage devices like
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| semi-solid and will not spill. These
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| | digital cameras, while NiCad batteries
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| batteries, most commonly used in new had
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| | are more effective in devices with a fast
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| held devices are nickel-cadmium (NiCad),
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| | discharge rate such as power tools. NiMH
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| nickel metal-hydride (NiMH), and the
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| | batteries are also used in hybrid cars.
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| newest, Lithium Ion (Li-Ion) batteries.
| |
| | The newest and most powerful of all
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| Nickel Cadmium, or NiCad batteries are
| |
| | rechargeable battery types is the Lithium
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| the least expensive of the three types,
| |
| | Ion battery. When compared to NiCad and
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| because it has the least power. They are
| |
| | NiMh batteries, Li-Ion batteries have the
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| primarily used in portable phones, power
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| | highest voltage density and the lowest
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| tools, and other hand held devices. They
| |
| | self-discharge rate. It is the smallest
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| are more practical than lead-acid
| |
| | and most light-weight of all the
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| batteries because of their increased
| |
| | batteries, but all the advantages make it
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| power and light weight. They also have an
| |
| | much more expensive as well. New Li-Ion
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| advantage over alkaline batteries which
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| | batteries are said to charge 10 times
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| are not usually rechargeable. NiCad are
| |
| | faster than NiMH or NiCad batteries, and
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| said to be the number one sufferer of the
| |
| | does so in a fraction of the time. Li-Ion
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| "memory effect" which in fact is really a
| |
| | are extremely susceptible to high
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| lazy battery effect, where the battery
| |
| | temperatures which can great shorten
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| discharges quickly after being fully
| |
| | their lifetime. Extremely high
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| charged. A NiCad battery only lasts 1000
| |
| | temperatures can also cause a Li-Ion
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| full cycles, so eventually they need to
| |
| | battery to explode.
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| be replaced.
| |
| | Different types of batteries have their
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| NiMh batteries are next of the podium for
| |
| | advantages and disadvantages. While some
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| newer, more powerful batteries. Though
| |
| | offer more convenience and higher
|
| similar to the NiCad batteries, NiMh
| |
| | capacity, there are still many
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| batteries do not contain toxic cadmium,
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| | limitations facing the development of
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| so they are considered more of an
| |
| | batteries. However, battery technology is
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| environmentally-friendly battery. They
| |
| | improving everyday to help portable
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| are also higher capacity than NiCad and
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| | devices last longer.
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| are said not to suffer from the
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| |
|
