iPhone 8 Battery Replacement

The iPhone 8 is powered by a 1,821 mAh lithium-ion battery designed to support the Retina HD LCD display and A11 Bionic processor. If your device loses charge quickly, feels warm, or shuts down early, a high-quality battery replacement will restore stable and reliable daily performance.

1-Year Battery Warranty

Battery Options for iPhone 8

The original capacity for the iPhone 8 battery is 1,821 mAh. We offer Amsentrix premium aftermarket options and OEM Apple batteries sourced directly through Mobilesentrix — one of the most trusted Apple-grade suppliers in the U.S.

Amsentrix – Standard Capacity (1,821 mAh)

  • Closest match to original performance
  • Safe, stable lithium cells
  • Engineered for all-day battery life
  • Certified Mobilesentrix manufacturing

Warranty: 1 Year
Repair Time: 25–40 minutes

Amsentrix – High Capacity (+15% / +20%)

  • Extended battery life for daily use
  • Better endurance for social media & streaming
  • Improved discharge efficiency
  • Ideal for heavy users

Warranty: 1 Year
Repair Time: 25–40 minutes

OEM Apple Battery (1,821 mAh)

  • True Apple-grade chemistry
  • Accurate iOS battery health reporting
  • Best long-term stability & performance
  • Sourced directly via Mobilesentrix

Warranty: 1 Year
Repair Time: 25–40 minutes

Our Battery Quality Standards

Cheap batteries cause overheating, swelling, reduced lifespan, and inaccurate battery health readings. One Fix Tech installs only certified premium-grade lithium cells designed to meet or exceed Apple’s safety expectations.

  • Amsentrix Premium: Best aftermarket performance.
  • Normal & High Capacity: Options for every user.
  • OEM Apple: True factory-grade replacement.
  • 1-Year Warranty: Covers swelling, defects, and premature failure.

Essential Battery Safety & Usage Tips

  • Avoid frequent small charging sessions — stresses the chemistry.
  • Swollen batteries can lift and damage the LCD panel.
  • Overnight charging every day accelerates wear.
  • Use trusted charging brands like Apple, Anker, Belkin.
  • One Fix Tech cleans charging ports for free.
  • Poor-quality cables can damage the charging IC.

Why Choose One Fix Tech?

  • Premium Amsentrix & OEM Apple batteries
  • 1-year full warranty
  • Professional, safe installation
  • No recycled or unknown batteries
  • Free charging port cleaning
  • Apple-verified Mobilesentrix supply chain

Need a Stronger Battery?

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