How to buy laptop battery–seven
4.know the after-service of the battery
Laptop battery is the expensive consumable, you can not ignore its after-sales service. From the perspective of the warranty, the battery can be said that it is a accessory with the shortest warranty period in all the accessories laptop accessories . Most of the battery warranty is only 3 months to six months, or even some simply not warranty period ,the batteries with the warranty ups to one year are very few. In general, the new battery can enjoy 3 months or 6 months warranty, if the battery is used, then it only 7 days to 1 months warranty. Therefore, consumers must ask merchant for the battery warranty period and conditions before pay , do not forget to ask for an invoice to the merchant or the seal of the receipt, and ask the seller to indicate the battery warranty period.
How to buy laptop battery–six
If you purchase a new original equipment battery,you should pay attention to that whether the rechargeable times of the batteries is 0 or not(the number of charge up to 2 or 3 times, because some businesses will have the battery charge and discharge test after purchase ). Second is to check the battery capacity. compare the battery is fully charged capacity with the design capacity, if found the fully charged capacity is less than the design capacity , it shows that the battery has a greater decline in performance which is not recommended for purchase. If your laptop's battery management program does not have check the battery fully charged capacity options, you can use BatteryMon software to detect.
If conditions permit, it is best to charge the battery fully into the notebook to have a try, you can access the internetor play DVD players or other operations. When you test, the screen appears suddenly flickered or irregular flashing light or the battery discharge curve monitoring software is not stable, there is the phenomenon of power sags (for example, once from 70% to 6%), it shows the battery-powered is not stable enough, may be the quality of the internal batteries are not good enough, or circuit design is not in place, do not buy the type of battery.if Enough time, it can be tested until the battery has been exhausted, the final accounting of what the actual use of the battery time is in the normal range. It should be noted, however, because the real test is difficult to achieve the required official standby power, when battery life gap between the not too large with the official nominal , which can not prove the battery has a problem.