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Rectangular black laptop battery with label and connector

INLAND

INLAND Asus Replacement Laptop Battery ASX550E4S1P

SKU CH-FNNQ-RN3XR

Replacement laptop battery using Samsung, LG or Sanyo cells and a Texas Instruments control chip, rated for over 1000 charge cycles

  • Battery typeLaptop Batteries
  • Product typeLaptop Batteries
  • Genuine Samsung, LG or Sanyo cells for reliable power
  • Texas Instruments control chip enhances safety during every charge cycle
  • Capacity matches or exceeds the original battery specification
  • Engineered to exceed 1000 charge cycles for extended service life
  • Replaces Asus part ASX550E4S1P for direct compatibility

Replacement Battery for Asus Laptops

The Inland ASX550E4S1P is a new replacement laptop battery built for Asus notebooks. It uses Samsung, LG or Sanyo cells matched to the original capacity. A Texas Instruments control chip manages charging and safety circuits. The pack is designed for owners who need a direct swap without modifications.

Charge Cycle Limits

Rated life exceeds 1000 full charge cycles compared with typical alternatives below 500 cycles. The name-brand cells and USA-made control chip aim to deliver that longevity in daily use. Actual runtime per charge depends on the notebook model and workload. Buyers who need more cycles than the rated figure should look elsewhere.

Part Number ASX550E4S1P

Compatibility is defined by the manufacturer part number ASX550E4S1P and UPC 783555387160. Verify this exact code against your Asus service manual before purchase. The battery fits only the models listed for that part number. Systems requiring a different part number will not accept this pack.

How it compares

Measured against everything we stock in Laptop Chargers & Batteries, at today’s prices. Recalculated every night.

Price $15.99
Cheaper than about 80% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameInland
Product typeLaptop Batteries
Power
Battery typeLaptop Batteries

Questions about this item

Which capacity version of the ASX550E4S1P should I choose for my Asus laptop?

The ASX550E4S1P matches the original battery capacity for compatible Asus models. Inland uses Samsung, LG, or Sanyo cells at the same or better capacity than the factory pack, so select the part number that matches your laptop model.

What does the 1000 charge-cycle rating mean for daily use?

The 1000-cycle rating means the name-brand cells can last roughly twice as long as typical knock-off packs rated under 500 cycles. In practice, that translates to several years of regular charging before noticeable capacity loss.

How does the Texas Instruments control chip affect compatibility and safety?

The USA-made Texas Instruments control chip manages charging and protection circuits to meet the laptop's original specifications. It prevents overcharge, over-discharge, and short-circuit conditions, ensuring safe operation with your Asus system.

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