This is a brand new Asus C21N1333 battery for the Asus Book TP550LA, TP550LD and the R544L and R554LA series. This Asus
C21N1333 battery can be easily installed yourself with a small screwdriver. It does require you to unscrew the cover on the bottom of your laptop to access the battery.
This Asus C21N1333 battery ships fully tested and ready to go. Li-ion batteries are not subject to the memory effect common with older battery technology. This means you can recharge your laptop any time without diminishing your battery capacity. This C21N1333 battery is 100% compatible with your Asus laptop. Each C21N1333 battery is individually tested before shipment and backed by 30 day complete satisfaction guarantee and a 2 Year warranty.
You can expect about 4 - 5 hours of run time with this Asus C21N1333 battery when new, depending on your energy use. The battery cells inside this cartridge have an energy capacity of 38Wh.
