A laptop without a battery can be compared to a man without a heart. The main ingredient to a laptop barring the motherboard is its battery. As mentioned in the opening sentence, the battery is the heart of the laptop. The various available batteries are essentially the backbone of the system.
It is important to choose the appropriate battery for a particular laptop. The main thing to be remembered is to make sure that the make and the serial model number of the laptop. It helps you in choosing the appropriate battery. In case of lost documents, the thing to be remembered is that the number would be available in the inside of the battery compartment and can be obtained when the laptop is switched off. Though nickel batteries were used formerly, it has mainly been replaced by lithium ion cells for higher charge retention and better performance of the battery. For better performance it is advisable not to expose the laptop and battery to temperatures below 10 degree Celsius nor exceeding 35 degree Celsius. Discharging the battery completely once a week, can lead to improved performance. Leaving it in the cars overnight or for days weakens its performance. Some consumers consider buying batteries with higher efficiency and expensive model which may not be compatible. Some of these may not work well with the laptops. So it is advisable that you buy a battery with warranty. Even though a warranty may not be guaranteed or available, try to get a battery which provides maximum returns or exchange policy so that you can find a way out if it falls prey to poor working conditions. Also taking reviews from consumers or users can have an added advantage in terms of time complexity and good expenditure on the same.
Modern batteries are usually lithium while older ones are nickel. If unsatisfied with the batteries available in the market for any reason, varying from cost to performance, shipping is advisable after consultation with an expert or a user. It is advisable not to buy compatible batteries because it may have the tendency to arm the laptops. Make it a point to confirm the battery from the corresponding customer service representative. Recalled batteries can pose a danger. Many third party sellers do sell the same. So it would be appropriate to confirm from the company that the laptop battery has not been issued a recall lest it may burn to flames. From a point of a customer it is important to make the right choice. So make it a point to buy a new battery rather than a reconditioned one.