A distinct benefit that many external batteries offer is their ability to power other devices

We must pay attention to the voltage requirements of the computer when choosing an external portable battery. Although these batteries often provide tensions in several discrete intervals, you must ensure that one of the available output voltage is + / -1 volt voltage needed for your laptop. However, since it is common to find these universal batteries provided with three to five different voltage outputs, the same battery can be used to power a number of laptops with different voltage requirements. In addition to voltage requirements, it is necessary to ensure that a power cord adapter that fits the computer's power port is either included in the battery itself or available as an option. The chargers are equipped with these batteries end up in a plug in an adapter must be attached. In many cases, these are called style barrel adapters, as they slide on a kind of mini-plug microphone into the side of the charger and have a cylindrical shape.

Although not so much a security issue is also important to ensure that the amperage of the battery equals or exceeds the current requirements of the laptop or not be able to deliver power to the laptop. This specification is more easily found by looking at the label on the charger that comes with the OEM battery and laptop.



One of the distinct advantages offered by many external batteries is its ability to power other devices such as PDAs, iPods, digital cameras, portable DVD players and cell phones. USB power cables come with many external battery with an output of 5 volts to facilitate this.



Most often these external batteries will be able to recharge the internal battery of the laptop. However, this depends on the computer's circuitry and can not always be the case. Some of these batteries and their associated provide automatic detection of the laptop voltage and provide an LED display to indicate the charge level of the external battery. Some of these batteries require the use of power adapter to power the PC battery, but most are equipped with their own battery charger. In addition, some shippers operate at 120 and 240 volts making them suitable for international travel and use. Optional converters are also available to charge these batteries to a power supply of 12 volts DC, as a car battery.



Consider an external laptop battery when you need a bigger battery to operate your laptop unplugged for an extended period of time, and more power for your money than you would a traditional external laptop battery. Also, consider the options and special features of these packages long battery life and choose what best suits your needs. More information on replacement laptop batteries can be found on the website of the author.