This is a Replacement battery for Gateway Going on a trip and need extra run-time? Need to replace a spent notebook battery? This powerful 12-cell battery for the Gateway 400SD4 can be used as a replacement for the original battery, or as a second battery for extended notebook usage when AC power is not available. Its high capacity enables hours of run-time. Don't let yourself be caught without power for your notebook when you need it. Get charged up with this high-quality notebook battery! Compatible Models: Gateway Solo 400SD, 400SD4, Replaces part #s 4UR18650F-3-QC-OA6, 4UR18650F-2-QC-OA6, 4UR18650F-3-QC-OA6A, 6500712, 6500713, 6500673, 6500674, 6500742, 6500743, BAT-SQU205, SQU-205. Product Specifications: Rating 14.8V Capacity: 5700mAh Size: 6.00" x 4.75" x 0.88" Color: Silver Technology: Lit-Ion Condition: Brand New In Stock: Yes