The Power Outside - External Laptop Battery Charger - Emergency Charger

Anyone who has ever owned a laptop computer knows that it can sometimes take quite a long time for a laptop to charge the battery. One of the ways around this problem is to get your hands on an external laptop battery charger, which can really help to speed up the process, and can be used to charge a second to battery, always a good idea when you are a heavy user of the computer. This article will look at a few considerations that need to be borne in mind when buying this extremely useful laptop accessory.

The first thing to remember is that choosing a charger needs to be done with great care, since at the very least you may end up with a charger which does not charge your battery properly, or could even cause damage to the battery itself, and you could be left with no power at all for your laptop. In the least worst case you could end up with a battery that is only partially charged, which means your notebook might run out of power after just an hour or so of operation, which could cause you a lot of trouble if it happens in an opportune moment.

133Watt Li-ion Universal External Laptop Battery

Descriptions:

This 133 Watt External Laptop Battery - Emergency Charger, is compatible with most notebook computers including IBM, SONY, ACER,TOSHIBA, HP, HITACHI, FUJITSU, ASUS, SHARP and others. Also works with devices which requires a 16V-19V Power supply equipment. Comes with tips that will replicate the tip you have on your AC Adapter. The battery is a Li-Ion and has a capacity of 133 Watt/Hours that will run a laptop for 4-10 hours based on your model and power settings.

How long can this external battery run ?

This battery's capacity is 133Wh(Watt-hour):
you can compare this battery's capacity with your internal battery capacity to figure out how long this battery can run your notebook. For example, if your notebook internal battery output is: 10.8V & 4000 mAh, then, your notebook internal battery capacity is:

10.8V x 4000 mAh = 43200 mVAh= 43.2 Wh (Watt-hour).

This external battery capacity is about 133/43.2=3 times of your internal battery capacity.

If your internal notebook battery can run 2 hours, then the external battery pack can theoretically run about : 2 hours x 3 = 6 hours.

See more informations.

In the worst case scenario you could end up with a battery charger causing a lot of damage to the battery itself, which means you have to then go out and buy a completely new battery pack, which of course can be very expensive.

One of the most common mistakes is to buy a charger which is not a suitable for the type of battery itself, usually a charger that is too small to take the battery. There are some types which can charge different sizes, but these are usually only supplied by manufacturers to charge the various sizes of battery for their complete laptop range. They are not usually available for different models. It is usually better to find a universal type of charger, possibly with a docking system.

An external battery charger can be a real boon, but, as you can see, you really do need to take a lot of care when you're choosing one because the wrong choice could leave you with practically no battery at all.