Alienware m7700 Sager 9860 Clevo D9T Laptop Battery   87-D9TAS-4D6   Alienware m7700 Sager NP 9860 Clevo D900T Battery Compatible with the following laptops: Sager NP9860 NP9860-S Clevo D9T D90T D900T Alienware Area-51 m7700 ProStar 9098 Charged to full, battery lasted 30 min in BIOS before it alarmed, indicating that it needed to be charged. This cannot be guaranteed. Used batteries are very erratic. Undertand this before you buy. Sold AS-IS   Check your manufacturer for more details. Please confirm that this item is compatible with your hardware. We are not responsible for compatibility problems.   This item was pulled working and is in GREAT condition.   We may accept returns if not as described but buyer must pay to ship battery to us. Do not buy if you do not agree.