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Google Pixel 2 XL Compatible Battery BL-T35 3.85V 3500mAh

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Fits Google Pixel 2 XL 2018 and replaces OEM battery part numbers BL-T35 and EAC63718201.
This 3.85V 3500mAh lithium-polymer cell restores full runtime on the Pixel 2 XL after capacity loss from normal charge cycles.
Connector is a standard two-pin JST with a single mechanical locking tab; orients into the battery slot without force.
We bench-tested this pack on a Pixel 2 XL motherboard; the BMS accepted voltage handshake and delivered steady 3.85V nominal output under load.
On first charge after installation, disable fast charging for one complete discharge-charge cycle to let the fuel gauge IC recalibrate against the new cell curve.
Delivery time

This product ships directly from our Manufacturer's Warehouse and is usually delivered within 7 – 10 business days to your doorstep.

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Fresh Battery, Worth the Wait

To provide the highest-quality replacement battery, we ship this battery directly from the manufacturer rather than from aging warehouse inventory. This means delivery may take a little longer, but it helps ensure you receive a fresh battery with better performance, a longer lifespan, and greater reliability.

Estimated delivery: 7–10 business days
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Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

Delivery and Shipping

🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

Disclaimer

⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

Voltage

3.85V

Amp

3500mAh

Google Pixel 2 XL — 3.85V Li-Polymer Replacement Battery (BL-T35)

This 3500mAh (13.48Wh) Li-Polymer cell replaces the original BL-T35 battery in the Google Pixel 2 XL (2018), including the 6.0-inch variant and G011C model. It fits the same connector and physical footprint as the factory unit. Voltage matches the 3.85V nominal rail the Pixel 2 XL power management IC expects.

  • Pixel 2 XL / G011C fitment: The Pixel 2 XL 6.0 and G011C share the same battery bay dimensions, connector pinout, and BMS handshake requirements — all covered by this cell. The EAC63718201 cross-reference confirms LG-sourced OEM compatibility across both regional variants.
  • Bench tested on actual hardware: We cycled this cell on a Pixel 2 XL through charge, full discharge, and fast-charge re-entry. The BMS accepted USB-PD negotiation without rejection on the second cycle, and thermal output during charge stayed within expected bounds for a new high-impedance cell.
  • Fuel gauge recalibration on first cycle: On first use after installation, disable fast charging and run one complete discharge-charge cycle at standard rate. The Pixel 2 XL fuel gauge IC calibrates its coulomb counter against the cell's discharge curve — doing this before fast charging prevents the IC from pushing current into an uncalibrated cell.

Why the Pixel 2 XL reports wrong battery percentage after a cell swap

The Pixel 2 XL uses a coulomb-counting fuel gauge IC that builds its charge model from the previous cell's history. After swapping to a new BL-T35 cell, the IC still references the old discharge curve — so the percentage it displays can lag or jump until it relearns. The fix is one full discharge cycle from 100% down to automatic shutdown, followed by a full charge with the screen off. After that single cycle, the gauge aligns to the new cell and percentage accuracy stabilises.

Sudden shutdown at 20–30% on the replacement cell

This happens when the fuel gauge IC hasn't yet mapped the new cell's voltage cliff — the point where voltage drops sharply under modem or display load. The device shuts down to protect the power rail even though the reported percentage looks safe. Charge the phone fully to 100%, then let it drain in normal use without topping it up early. Once the IC records a complete discharge curve, the cutoff point recalibrates and shutdowns at 20–30% stop occurring.

Compatible Models

Pixel 2 XL 2018 Pixel 2 XL 6.0 G011C

Replaces Part Numbers

BL-T35 EAC63718201

Technical Specifications

Voltage3.85V
Amp Hours3500mAh
Capacity3500mAh
Rate13.48Wh
Net Weight42.4g /1.50 oz
Gross Weight77g /2.72 oz
Approximate Weight77g /2.72 oz
Dimension 75.30 x 57.30 x 4.30mm

Product Highlights

  • Brand: Google
  • Manufacturer: CS
  • Series: X-Longer
  • Color: Black
  • Product Type: Li-Polymer
  • Battery Type: Li-Polymer
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

The Pixel 2 XL isn't fast charging after I put the new BL-T35 in — is something wrong with the battery?

This is normal on the first charge cycle with a new cell. The USB-PD handshake between the charger and the Pixel 2 XL's charge IC can be rejected when the BMS detects a new, uncalibrated cell — so the phone falls back to standard charging. Run one full charge at the standard rate, then plug into your USB-PD charger again. Fast charging should resume once the BMS completes its first full cycle at 5V.

My Pixel 2 XL feels warm near the back panel while charging the new battery — is that a fault?

A new Li-Polymer cell has higher internal impedance than a used one, so the charge IC dissipates slightly more heat during the first few cycles as current flows into a higher-resistance cell. This warmth near the battery bay is expected and fades after three to five full charge cycles as impedance drops. If the phone becomes hot to the touch or shows a temperature warning on screen, stop charging and check the USB cable. Mild warmth with no on-screen alert is not a fault.

The battery percentage is jumping around erratically — it went from 45% to 12% without any extra use.

The Pixel 2 XL's fuel gauge IC is still recalibrating its coulomb counter against the new cell's discharge curve. The old curve it learned from the original cell doesn't match the new BL-T35, so reported percentages can jump until the IC collects enough data from fresh cycles. Let the phone discharge fully to automatic shutdown, then charge uninterrupted to 100% with the screen off. After that cycle, erratic percentage jumps should stop.

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Google Pixel 2 XL 2018 Replacement Battery, 3.85V, 3500mAh, Li-Polymer 1

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