Replacement Lenovo B40-70 laptop battery. Catalog-listed compatibility includes B41, B50, M4400. Match the old battery label, voltage, connector and shape before confirmation.

Compatibility profile

Laptop brand: Lenovo
Exact model: M4400
Matching batteries: 1

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Service quote when unavailable

B40-70 is listed for Lenovo M4400. We will reconfirm the old battery part number, voltage, connector, and shape before processing.

2,000 mAh4 cells14.8V

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Battery is swollenOnly works while plugged inShuts down soon after unpluggingNot charging or percentage is stuckVery low backup after a full chargeBattery is not detectedOther problem

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