Battery BTI A1375-BTI MacBook Air 11 7.3 V DC 5,200 mAh

Keep older MacBook Air 11-inch notebooks in service with a replacement battery designed for exact-fit compatibility and stable daily operation. This BTI Li-Polymer pack is specified for Apple MacBook Air 11-inch models MC505LL/A, MC506LL/A, and MC507LL/A, making it a practical choice for IT teams extending the life of deployed systems without replacing the entire device. With 7.3 V DC output and 5,200 mAh capacity, it is built to restore portable runtime for users who still depend on these compact systems for travel, point-of-service work, and light productivity. The rechargeable lithium polymer design supports repeated charge cycles, while the proprietary battery size helps maintain the fit and electrical profile expected in the platform. For organizations managing repair budgets, this battery offers a straightforward path to recover usable runtime and reduce downtime on aging assets. It is a focused replacement part, not a generic substitute, which matters when consistency and compatibility are more valuable than a lower-cost guess. Backed by an 18-month limited warranty, it gives procurement and support teams a clearer standard for replacement planning.