Fancy Buying 87Wh 7800mAh Laptop Battery for Asus K53 A53

Fancy Buying's 87Wh (7800mAh) 9-cell replacement battery restores long runtime for compatible Asus laptops without modifying the machine.

If your Asus laptop shows short battery life, won't hold charge, or only runs when plugged in, this Fancy Buying 11.1V Li-ion replacement is built as a direct-fit substitute for many A-, K-, X- and P-series models. It uses Grade A cells and integrated protection circuitry to deliver consistent power for everyday use, while meeting FCC, CE and RoHS safety standards. The battery is rated for roughly 800 recharge cycles and ships with a 12-month warranty and around-the-clock email support.

Which Asus models will this battery work with?

This battery is compatible with a broad range of Asus notebooks including A53, K43, K53, K54, A54, A83, A84, K84 and various X-series machines. Check the original battery part numbers (A31-K53, A32-K53, A42-K53 and similar) to confirm fit before ordering. Physical shape, terminal location, and voltage match are designed to align with the listed models.

• Compatible part numbers: A31-K53, A32-K53, A42-K53 and related Asus references
• Fits models: A43, A45, A53, A54, A83, A84, K43, K53, K54, K84, P43, P53, X43, X44, X53, X54, X5P, X84
• Voltage and cell layout match: 11.1V, 9 cells (internal form factor)

How much runtime and lifecycle can I expect from this 7800mAh battery?

Runtime depends on your laptop model, workload and power settings; light tasks like web browsing will run much longer than heavy video or gaming. The battery's 7800mAh / 87Wh capacity provides a sizable increase over many older cells and Grade A cells help maintain capacity through more cycles. The manufacturer rates around 800 full charge-discharge cycles before significant capacity loss.

• Capacity: 7800mAh (87Wh) for extended unplugged use
• Cycle life: approximately 800 recharge cycles under normal use
• Cells: Grade A Li-ion cells for steadier charge and discharge performance

Is this battery safe and reliable to use in my laptop?

The Fancy Buying battery includes built-in circuit protection to guard against overcharge, over-discharge and short circuits, and it complies with FCC, CE and RoHS standards. Using the correct voltage and a direct-fit replacement minimizes risks associated with improper battery swaps; still follow safe installation steps and power down the laptop before replacement. The product is 100% new from the manufacturer and arrives factory-sealed.

• Certifications: FCC, CE, RoHS
• Safety features: integrated protection circuitry for stable operation
• Condition: brand-new cells and factory assembly

What warranty and support come with the battery?

Fancy Buying provides a 12-month warranty and 24/7 email support for assistance with installation, compatibility questions, and any post-purchase concerns. If the battery fails under warranty terms, the support team can advise on replacement or refund options. Keep the order information handy when contacting support for faster service.

• Warranty period: 12 months from purchase
• Support: email support available 24/7 for troubleshooting
• Return guidance: contact support with order details for warranty claims

Who is this product for? This Fancy Buying 9-cell, 87Wh replacement battery is aimed at Asus laptop owners who need a reliable, higher-capacity substitute for worn-out OEM cells — especially students, remote workers, and technicians who need predictable unplugged runtime. It's ideal for users who value a direct-fit replacement with safety certifications and a manufacturer-backed warranty, and for anyone looking to extend the usable life of a compatible Asus notebook without buying a new computer.