High-Performance Lithium-Ion Battery: Utilizes high-quality lithium-ion battery technology to provide up to 8 hours of battery life to keep your device running all day long. Perfectly Compatible: Compatible with Chromebook Acer CB5-311 and CB5-571 and other models, it is plug-and-play and requires no additional configuration. Safe and Reliable: With multiple safety certifications (such as FCC, CE and RoHS) and built-in overheat, overcurrent and short-circuit protection mechanisms to ensure safe use. Durable: Made of high-quality materials, durable and wear-resistant, with up to 500 charging cycles for longer service life. QUALITY SERVICE: 12 months warranty service, if you have any questions, feel free to contact our professional customer service team, we will be happy to serve you at any time within 24 hours. Compatible/W Laptop Models: Acer Chromebook C910 CB3-111 CB5-571 CB3-531 C810 Aspire ES1-520 R5-471T R7-372T R3-131T ES1-511 ES1-111M R7-371T ES1-531 E3-112 r5-571t r3-471t Replacement for Original Battery Part Numbers: AC14B8K, 4ICP5/57/80, KT0030G.004, KT.0040G.004 Shop for high-performance laptop batteries from GBLGBD! Designed specifically for the Acer Chromebook CB5-571, this battery 15.2V/48WH/3200mAh /4-cell utilizes high-quality lithium-ion technology to provide up to 8 hours of battery life to keep your device running 24/7. It is certified with multiple safety approvals and has built-in overheat, overcurrent and short-circuit protection mechanisms for added peace of mind. The plug-and-play design is easy to install and requires no additional configuration. We provide 12 months warranty service, if you have any questions, feel free to contact our professional customer service team, we will be happy to serve you. Choose GBLGBD, choose quality and peace of mind!