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Lenovo B40-70 Laptop Battery is a reliable replacement option for compatible laptops. The listed configuration includes 14.8V voltage, 2,000 mAh capacity, and 4-cell configuration. Compatible model references include Lenovo B41, Lenovo B50, and Lenovo M4400. Before ordering, match part number B40-70, voltage, connector, and physical shape with the old battery. Battery Solution can help verify fitment, warranty, and delivery.
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Confirm your exact model or variant with our representative before ordering.
Clear answers about model fitment, warranty, and delivery before you order.
This battery is currently mapped to: Lenovo B41, Lenovo B50, Lenovo M4400. Please confirm the exact variant, old battery part number, voltage, and connector before ordering.
Match the original battery part number, voltage, connector, physical shape and laptop serial/service tag. The compatible models on this page come from the verified compatibility data and should be reconfirmed before sale.
Keep your laptop model or tracking code ready for faster support.