• Send Us a Message
    • Skip to content
    AMPLUS Pixel 4 XL Battery 3700mAh G020J G020P G020Q Lithium-Ion 0 Cycle Brand New Replacement Battery JPC MOBILE ACCESSORIES

    AMPLUS Pixel 4 XL Battery 3700mAh G020J G020P G020Q Lithium-Ion 0 Cycle Brand New Replacement

    $0.00 - $0.00
    $0.00
    $24.20
    $24.20 - $24.20
    $24.20
    SKU AMPBR-Pixel4XL
    AMPLUS Aftermarket Plus · 12-Month Vendor Warranty

    AMPLUS Google Pixel 4 XL Battery — 3700mAh 3.85V Lithium-Ion — G020J / G020P / G020Q — Brand New Zero Cycle Replacement

    Aftermarket Plus replacement battery for Google Pixel 4 XL G020J, G020P and G020Q. Genuine 3700mAh capacity matches the original Google factory cell spec. Nominal 3.85V Li-ion chemistry with 4.4V max charge profile. Brand new cell, zero cycle count, never installed in any device. Internal protection covers overcharge, over-discharge, short circuit and overheat. ROHS and CE certified for Australian retail compliance. Plug-and-play battery flex connector, no soldering or programmer required. Fixes fast drain, sudden shutdowns, swelling and slow charging on Pixel 4 XL. Backed by AMPLUS 12-month vendor warranty. Brisbane stock, dispatched 2 to 4 business days.

    3700mAh / 14.25 Wh 3.85V Li-Ion Polymer 0 Cycle / Brand New ROHS & CE Certified Plug-and-Play Flex
    In Stock — Brisbane Bench Tested Ships 2-4 Days

    Brisbane Technical Hub

    Local stock at our Forest Lake workshop. Bench-powered before pack-out. Real Pixel repair techs on hand for advice.

    Authenticity Guaranteed

    Genuine AMPLUS Aftermarket Plus stock. Brand new, zero cycles, vendor-backed 12-month warranty.

    Reliable Dispatch

    Tracked Australia post and courier options. Standard dispatch 2 to 4 business days.

    Why AMPLUS Aftermarket Plus

    AMPLUS stands for Aftermarket Plus. It sits above generic clone batteries. It sits below genuine Google service-pack cells. The grade is honest aftermarket with a 12-month vendor warranty.

    Every cell is brand new from the AMPLUS production line. Every cell ships with zero cycles on the gauge. The battery flex connector is a direct fit with no programmer or soldering needed.

    Full Technical Specifications

    Brand
    AMPLUS (Aftermarket Plus)
    Compatibility
    Google Pixel 4 XL
    Model Numbers
    G020J, G020P, G020Q
    OEM Part Reference
    G825-00171-01
    Capacity
    3700mAh
    Watt-Hours
    14.25 Wh
    Nominal Voltage
    3.85V
    Max Charge Voltage
    4.4V
    Chemistry
    Lithium-Ion Polymer
    Cycle Count
    0 (Brand New)
    Connector
    Standard battery flex
    Built-in Protection
    Overcharge, over-discharge, short, thermal
    Certifications
    ROHS, CE
    Vendor
    AMPLUS
    Warranty
    12-Month vendor warranty
    Adhesive
    Not included (use 3M strips)

    Pixel 4 XL Battery Symptoms This Fixes

    Fast battery drain

    Battery falls from full to flat in a few hours.

    Random shutdowns

    Phone powers off at 30 to 50 percent charge.

    Swollen battery

    Back glass lifting or screen pushing out from the frame.

    Slow charging

    Phone takes 4 to 6 hours to reach a full charge.

    Overheating during use

    Phone runs hot when idle, gaming or charging.

    Stuck on dead battery icon

    Phone will not boot past the empty battery screen.

    Who This Battery Is For

    DIY home repair

    Confident hobbyists swapping their own Pixel 4 XL battery.

    Mobile repair shops

    Workshop bench stock for walk-in customer repairs.

    Refurbisher fleets

    Bulk Pixel 4 XL refurbs needing fresh zero-cycle cells.

    Pixel enthusiasts

    Loyal Pixel users keeping the 4 XL alive past warranty.

    School and IT fleets

    Education or office Pixel 4 XL pools needing fast battery rotation.

    Trade-in resellers

    Sellers refreshing batteries before listing on eBay AU or Gumtree.

    Does NOT Fit These Pixel Models

    This battery is built only for the Pixel 4 XL G020J, G020P and G020Q. Below are the wrong-size devices it will not fit.

    Pixel 4 (smaller G020M) Pixel 4a Pixel 4a 5G Pixel 5 Pixel 3 / 3 XL Pixel 6 / 6 Pro

    Install Notes For Best Result

    Pixel 4 XL battery replacement opens through the back glass. Heat the back glass and lift with a thin pick. Disconnect the battery flex first. Use fresh 3M B-7000 strips or pre-cut Pixel 4 XL adhesive. Reseal the back glass with new adhesive frame.

    First charge to 100 percent before unplugging. Allow one full discharge cycle for the gauge to learn the new cell.

    Browse Related Categories
    Pro Repair Tools & Kits

    Pay your way — Afterpay and Klarna available at checkout.

    Pixel 4 XL Battery FAQ

    What Pixel 4 XL model numbers does this battery fit?+

    Fits the Google Pixel 4 XL only. Confirmed model numbers are G020J, G020P and G020Q. The smaller Pixel 4 uses model G020M and a different battery.

    What does the AMPLUS brand stand for?+

    AMPLUS stands for Aftermarket Plus. It is a higher tier of aftermarket parts. Above generic clones and below genuine Google service-pack. Honest grade with vendor-backed warranty.

    Is this battery brand new or refurbished?+

    Brand new from the AMPLUS production line. Zero cycles on the battery gauge. Never installed in any device. Sealed in fresh anti-static packaging.

    Does the capacity match the original Google factory cell?+

    Yes. Rated 3700mAh and 14.25 watt-hours. Same nominal 3.85V chemistry as the original Google cell. Same 4.4V max charge profile.

    What does the 12-month warranty cover?+

    Covers manufacturing faults for 12 months from dispatch. Excludes physical damage, swelling from puncture, and water exposure. Vendor-backed by AMPLUS.

    Do I need a programmer or BMS reset after install?+

    No. Pixel 4 XL takes a plug-and-play battery flex. No programmer needed. Charge to 100 percent first. Run one full discharge for the gauge to calibrate.

    Will my Pixel 4 XL show a battery health warning after swap?+

    Pixel does not run an Apple-style health lock on aftermarket cells. The gauge may read odd for one or two cycles. After full discharge it settles to true capacity.

    What tools do I need to install the battery?+

    Heat pad or hairdryer to soften the back glass. Plastic spudger and thin pick. T3 and T5 Torx drivers. Tweezers. Fresh 3M B-7000 or pre-cut adhesive strips.

    Why is my old Pixel 4 XL battery swelling?+

    Lithium cells gas off after years of charge cycles. The Pixel 4 XL is well known for swelling near year three. Replace the cell straight away to protect screen and frame.

    How long until my order ships from Brisbane?+

    Standard dispatch is 2 to 4 business days from our Forest Lake workshop. Tracked Australia Post or courier on every order. Walk-in pickup is available.

    The JPC Mobile Quality Seal

    Brisbane-held local stock. Every AMPLUS Pixel 4 XL battery is bench-checked, voltage-verified and packed in dual-foam. Tracked dispatch on every order. Backed by the AMPLUS 12-month vendor warranty.

    12-Month AMPLUS Warranty
    Ships 2-4 Days Tracked
    Shop 3A, 152 Woogaroo St, Forest Lake QLD 4078

    Visit our Forest Lake workshop for walk-in Pixel battery installs. Find us at Shop 3A, 152 Woogaroo St, Forest Lake QLD 4078.

    Payment Options

    We offer multiple convenient payment options for your repairs and accessories purchases. Pay with cash, debit/credit card, or interest-free Buy Now Pay Later options.

    Afterpay Zip Klarna PayPal
    Learn more about our Buy Now, Pay Later options →

    Shipping & Processing Information

    Processing Time

    All orders require 2-4 business days for processing, regardless of shipping method.

    This includes order verification, picking, packing and preparation for dispatch.

    You will receive tracking information for all shipped orders and notification when pickup orders are ready for collection.

    Shipping Methods

    Standard: 3-7 business days in transit after processing

    Express: 1-2 business days in transit after processing

    Express shipping only affects delivery time once dispatched, not processing time.

    Express shipping does not expedite the 2-4 business day processing time.

    AMPLUS Pixel 4 XL Battery 3700mAh G020J G020P G020Q Lithium-Ion 0 Cycle Brand New Replacement Battery JPC MOBILE ACCESSORIES

    AMPLUS Pixel 4 XL Battery 3700mAh G020J G020P G020Q Lithium-Ion 0 Cycle Brand New Replacement

    $24.20