This is a new Asus 70-NLF1B2000Z battery for the Asus F5C F5Gi F5M F5N F5R F5RL F5SL F5SR F5V F5VL F5VZ X50C X50Gi X50M X50N X50R X50RL X50SL X50SR X50V X50VL X50Z X59Gl X59SL X59SR series.

This Asus 70-NLF1B2000Z battery is rated 5200 mAh and will normally last 3 hours on a full charge. There are no compatibility issues if your existing battery is rated at 4400 or 4800 mAh or a lower Whr. Simply put, more is better. And yes, this battery is probably better than your original!

All our products carry a full 2 Year warranty and every battery is charged and tested before it ships. We provide a 30 day money back guarantee if you are not completely satisfied. We are so confident in the quality of our batteries, we will pay for any and all shipping expenses if our product fails to perform in the first 30 days you have our battery.

You can expect about 2 hours to 2-1/2 hours of run time with this Asus 70-NLF1B2000Z battery when new, depending on your energy use.