BAT FOR LENOVO M4400 45N1185 14.4V 2200M

This high-quality replacement battery restores power to selected Lenovo notebooks. In addition, it delivers consistent runtime for daily tasks. Also, it meets OEM form factor and connector standards.

• Voltage: 14.4V, therefore compatible with systems requiring this rating.
• Capacity: 2200 mAh, which equals 31.68 Wh for steady performance.
• Battery Type: Lithium-ion, so it offers good energy density.
• Cell Count: 4-cell configuration for balanced weight and runtime.
• Color: Black, matching the original Lenovo battery look.
• Connector: Direct OEM-style plug, therefore installs without adapter.
• Form Factor: OEM replacement size, so it fits the original bay.

Compatible part numbers include common OEM and aftermarket identifiers. Also, sellers may list variants and cross-reference codes.

• AST-ABT-LNM4400 (primary SKU)
• 121500239, 121500240, 121500241, 121500242
• 121500243, 121500244
• 45N1182, 45N1183, 45N1185, 45N1186, 45N1187
• L12L4E55, L12M4E55, L12S4E55
• L13L4A01, L13M4A01, L13S4A01
• 5B10K10151, 5B10K10153, 5B10K10154
• 4ICR18/65, 4ICR18/66

Compatible models are listed for quick verification. Moreover, this battery suits many IdeaPad and V-Series laptops.

• Lenovo IdeaPad B40-30, B40-45, B40-70
• Lenovo IdeaPad B50-30, B50-30 Touch, B50-45, B50-70
• Lenovo IdeaPad N40-30, N40-45, N40-70
• Lenovo IdeaPad N50-30, N50-45, N50-70
• Lenovo M4400, M4400A, M4450, M4450A
• Lenovo V4400, V4400A, and similar Notebook PCs

Benefits include reliable power and easy swap installation. In addition, this option saves money versus buying a new laptop.

• Reliable daily runtime for browsing, office work, and study.
• OEM-fit design for hassle-free installation.
• Cost-effective replacement that restores battery life quickly.
• Maintains original laptop balance and casing fit.

What is in the box and service details remain simple. Also, you get the battery, installation guide, and support notes.

• 1 x Replacement battery (AST-ABT-LNM4400 / 45N1185 compatible)
• Basic installation instructions included
• 12-month limited warranty for peace of mind

Notes and safety tips are important for long battery life. Therefore follow these simple practices.

• Charge fully before first use, and then calibrate occasionally.
• Avoid extreme heat and long-term storage at full charge.
• Use the original charger to prevent charging issues.
• Dispose of the old battery at a certified recycling center.

Finally, confirm model and part number before ordering. Also, note that some sellers omit the first four SKU characters.