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Technical Specifications: Model: VG661; Voltage: 11.4V; Capacity: 80.5Wh/6709mAh; Battery type: Li-ion. This product uses premium grade A battery cells, offering up to 500 recharge cycles. A set of screwdrivers is included. Compatible Part Numbers: VG661, V4N84, 0GD3C9, GD3C9, 0V4N84, 31CP5/46/95-2. This is a replacement battery for the Dell Alienware X14 R1 Series and the Dell Alienware X14 R2 Series. All products are certified for safety by UL, CE, FCC, and RoHS. We are assured of the performance of our replacement laptop batteries, which adhere to strict compatibility guidelines, rigorous quality control standards, and meet environmental safety standards, including protections against short circuit, overheating, and overload. If the new battery is not recognized during initial installation, please reinstall it and verify the interface connection is complete. Discharge the new battery to 5% (avoiding 0%), then charge it and cycle 3-4 times to activate the new battery