Features: 1. You can get long hours of battery life without having to frequently plug into recharge with the notebook battery 2. No memory effect. Chargeable even if it has not been used up yet 3. Using advanced cell technology and quality parts, the notebook laptop battery guarantees the stamina you need for long work sessions and travel 4. Manufactured to the highest quality available, notebook laptop battery with true enhanced performance 5. Notebook laptop battery is powered by high quality cells 6. The replacement laptop battery recharges while it is installed and the computer is connected to AC power   Specifications: 1. Battery Type: Replacement Battery 2. Cell Type: Li-ion 3. Voltage: 11.1 V 4. Capacity: 7800 mAh 5. Color: Black 6. Dimensions: (12.60 x 1.97 x 1.57)" / (32 x 5 x 4)cm (L x W x H) 7. Weight: 20.17oz / 572g 8. Replace Part Number: 312-0664, HG307, RU006, TK330, RU033, RN894, GP975 9. Compatible with: Dell XPS M1530 1530 Package Includes: 1 x Laptop Battery