Extra battery and charger
A notebook battery with charger is a notebook accessory just
like a notebook backpack, notebook bag, notebook case, notebook
cooler, notebook hard drive, notebook memory, or a notebook
mouse. While traveling or when an electric wall socket is
not available, then the laptop can be run on batteries. All
laptop notebook batteries are rechargeable batteries and hence
a charger along with few extra batteries makes up essential
notebook computer accessories. Notebook batteries are generally
are of the lithium-ion (Li-Ion) or nickel metal hydride (Ni-Mh)
variety and the specification is usually 10.8V, 4000mAh, meaning
that it can work at 10.8 Volt settings and can store power
up to 4000mAh, that is it can last for an hour as most notebook
computers consume 4Amps in one hour. However, high-end notebook
batteries can last for 4 to 5 hours. A used or a refurbished
battery is usually not a good choice as there is no guarantee
that it will last or work at all. When buying a battery along
with its charger, it is always advisable to stick to new ones.
Popular notebook computer batteries with charger
- Acer laptop batteries with charger
- Apple laptop batteries with charger
- Compaq laptop batteries with charger
- Dell laptop batteries with charger
- Gateway laptop batteries with charger
- HP laptop batteries with charger
- IBM laptop batteries with charger
- NEC laptop batteries with charger
- Sony laptop batteries with charger
- Toshiba laptop batteries with charger
- Twinhead laptop batteries with charger
- WinBook laptop batteries with charger
Check three points when buying an extra laptop battery
- Consider the reputation of the brand of the battery.
Consider compatibility of the battery with your laptop.
If your laptop is made of Sony, then a Sony battery would
be an ideal choice. However, the power cells inside the
battery may not be of Sony. Some other manufacturer like
Panasonic, Toshiba, etc. may manufacture them, with only
the outer plastic cover being made by Sony. Nevertheless,
Sony checks the power cells and after that only applies
its cover on them. Therefore, it is always a good buy. A
warranty is also a necessity. Reputed brands give a minimum
of a one-year warranty.
- Consider the type of battery. Batteries are usually of
Ni-Cad, Ni-MH, Li-Ion, and Li-Poly varieties. Ni-Cad is
obsolete. The other three are manufactured and used. Ni-MH
weighs more than Li-Ion and Li-Poly but produces less current.
The latest batteries are Li-Ion and Li-Poly, which are light
in weight and produce more current. Most laptops support
a single type of battery. If your laptop came with a Ni-MH
battery, then it can be replaced only with a Ni-MH battery.
Some laptops allow upgradation to a Li-Ion, however, it
is an exception and not a rule. Hence, purchasing a laptop
which has a Li-Ion or a Li-Poly battery would be a better
choice in terms of future use.
- Consider the power rating of the battery. Batteries can
be rated in Volts, Amperes, and Watt-hours. Multiplying
volts and amperes gives watt-hours. For example, a Li-Ion
battery specification is 14.4 Volt, 3600mAh and a Ni-MH
battery specification is 9.6 Volts, 4000mAh. Now, if we
have to decide on which battery is stronger and which to
buy, we may find out the watt-hours. The battery with the
greater watt-hours is stronger.
Li-Ion: 14.4 Volts x 3.6 Amperes = 51.84 Watt-hours
Ni-MH: 9.6 Volts x 4 Amperes = 38.4 Watt-hours
Therefore, the Li-Ion battery has greater Watt-hours and
will last more. Similar calculations may be done with same
type of batteries to find out their respective strengths.
Notebook batteries when not in use should be fully charged
and stored for optimal performance.
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