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Asus X551 / X451 Replacement Laptop Battery (ULTRA CELL)

SKU: BATTX551
$ 12.00
Available in stock

The A41N1308 (BATTX551) is a 4-cell Lithium-Ion internal replacement battery engineered specifically for the Asus X551 and X451 laptop families. Supplying a standard 14.4V / 14.8V energy profile with a 2200mAh to 2600mAh capacity (37Wh), it features premium built-in overcurrent protection alongside heat-damping thermal sensors to guarantee structural system safety.

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Description

The Asus X551 / X451 Replacement Laptop Battery—most commonly cross-referenced by the official factory part numbers A41N1308 and A31N1319—is an internal, screw-in power pack built for budget Asus laptops. Suppliers track this part number under general warehouse inventory SKUs such as BATTX551 or BAT-ASX551-OEM. It features a unique, long cylindrical bar layout configured to align beneath the interior chassis palm rest.

(ULTRA CELL BRAND)

Essential Features Summary:

Feature Category Core Technical Data Point

Model & SKU Identifiers Primary Warehouse SKU: BATTX551 | Asus Part Numbers: A41N1308, A31N1319, 0B110-00250000

Cell Composition Lithium-Ion (Li-Ion) | 4-Cell internal inline cylindrical alignment

Charge Capacity 37 Wh / Roughly 2200 mAh to 2600 mAh (Based on cell classification)

Voltage Output 14.4V to 14.8V (Fully synchronized across original motherboard rails)

Safety Integration Built-in circuit defenses shielding against short-circuits, voltage surges, and overcharging

Useful Lifespan Rated for up to 300 to 500 complete discharge/charge cycles

Physical Configuration Slim, internal elongated tubular form factor with fixed snap-in lock rails

Hardware Fit Ecosystem Asus X Series: X551, X551C, X551CA, X551M, X551MA, X551MAV
Asus X451 Series: X451, X451C, X451CA, X451MA
Alternative Sub-Models: D550, D550M, D550MA, R512M

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