Welcome to our store. Your trusted source for batteries and power solutions. Learn more

For support or quotes: sales@batteryweb.com
WELCOME5
BatteryWeb

AB2400CWMC Philips Xenium W8500 Compatible Battery 3.7V 2200mAh

Up to 20% off
New arrival
From $29.99 USD $36.99
Shipping calculated at checkout.
Fits Philips Xenium W8500 smartphones; replaces OEM battery AB2400CWMC directly.
3.7V Li-Polymer cell rated 2200mAh delivers 8.14Wh — sufficient for full-day calling and messaging on this device.
Connector slides into the factory battery slot with a single locking tab; orientation is keyed and accepts no force.
We bench-tested this cell in a W8500 unit; the BMS accepted the pack on first insert with no fault codes or delayed powerup.
On first use after installation, disable fast charging for one complete discharge-charge cycle — this lets the fuel gauge IC recalibrate against the new cell discharge curve before high-current charging resumes.
Visa Mastercard American Express PayPal Apple Pay Google Pay Shop Pay Discover Klarna Afterpay Stripe
✦

Check that your old battery model number and device model to match our description. This makes sure they work together.

✦

We ship your order same day if you buy it before 4 PM EST.

Warranty

Let customers speak for us

from 12 reviews

I'm writing this review to express my deep gratitude and appreciation for the quality of services provided to me by the BatteryWeb service team. I visited BatteryWeb to purchase a replacement battery for my Remington R9 razor. The staff was very responsive and I was really impressed with their willingness to help me and make the purchasing process as quick as possible. In particular I greatly appreciate the work of staff member Shane who was friendly and helpful.
In conclusion, I believe that BatteryWeb has excellent service staff who make their customers feel honored and valued.
I wish you all the best.
Sincerely,
Michael

Michael Talianker
BatteryWeb

this battery was just what I needed.

Robert Jones
BatteryWeb

Product is exactly as described and arrived quickly

Robert Jones
Rocket ES4-12 Compatible Replacement Battery

Great deal for the money.

Linda M.
BatteryWeb

It took a bit longer than expected, likely due to the holiday season, but that was understandable. So far, the battery seems to be working well!

Linda M.
MGE UPS Systems Pulsar EX 1500RT Compatible Replacement Battery By Bright Way

Excellent substitute for the original, appearing to be the perfect replacement.

Alberto J.
APC SMART-UPS RT SURTA3000RMXL3U UPS High Performance Replacement Battery Set

It was what i was looking for. Support is fast

Jaswal
WAHEGURUG - RADHASWAMI

Fast service

Mark Casias
BatteryWeb

Perfect fit

Mark Casias
STX20L-BS Battery for Harley Softail FLS FLST 1991-2017 High Performance

Works Perfectly!!

Ben Benson
Invacare 220 Scooter High Performance Medical Replacement Battery Set

Send Your Battery Photo

Expert Technician Help

Snap a photo or video of your battery and send it to us. We'll identify the exact replacement—fast and hassle-free. Our team has helped thousands of customers find the right battery quickly and easily.

POST YOUR BATTERY IMAGE
Product & Solutions Expert

Product & Solutions Expert

✉ sales@batteryweb.com

🔹 10+ Years Battery Experience 🔹 Fast & Accurate Identification

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

3.7V

Amp

2200mAh

Philips Xenium W8500 — 3.7V Li-Polymer Replacement Battery (AB2400CWMC)

This is a 3.7V, 2200mAh (8.14Wh) Li-Polymer cell that replaces the OEM AB2400CWMC battery in the Philips Xenium W8500 smartphone. It fits the W8500 directly, restoring power to calls, messaging, and apps when the original cell has degraded. Voltage and connector match the original specification.

  • Xenium W8500 platform fit: The W8500 uses a 3.7V single-cell Li-Polymer pack with the AB2400CWMC part number. The BMS handshake, connector pinout, and charge termination voltage are matched to this cell — no modifications needed.
  • Bench tested on actual hardware: We cycled this cell through charge and discharge on the W8500 platform. The BMS accepted charge, hit the correct 4.2V termination point, and held voltage through a full screen-on discharge without premature cutoff.
  • Fuel gauge recalibration on first use: On first installation, disable any fast-charge mode and run one complete discharge-charge cycle. The W8500's fuel gauge IC calibrates its coulomb counter against the new cell's discharge curve — skipping this step causes the OS to report inaccurate percentages for several days.

Sudden shutdown at 20–30% on the W8500 after a cell swap

This is a voltage cliff problem, not a capacity problem. When the modem transmits or the screen peaks in brightness, current draw spikes briefly above what the fuel gauge expects. If the coulomb counter is still calibrated to the old, degraded cell curve, it misreads state-of-charge and the phone shuts down to protect the cell before the actual cutoff voltage of 3.0V is reached. Running one full discharge-charge cycle after installation gives the fuel gauge IC real data from the new cell and corrects the curve. After that cycle, shutdowns at 20–30% should stop.

Phone shows wrong battery percentage after replacement

The Xenium W8500 stores the previous cell's discharge curve in its fuel gauge IC. When a new cell goes in, the IC keeps using the old curve until it collects fresh data. This produces percentage jumps, sudden drops, or a reading that stays frozen near a round number. Drain the phone to auto-shutoff, then charge uninterrupted to 100% without interruption — one complete cycle resets the coulomb counter against the new cell. After that, the percentage reading should track normally within a few percent of actual state-of-charge.

Compatible Models

Xenium W8500 W8500

Replaces Part Numbers

AB2400CWMC

Technical Specifications

Voltage3.7V
Amp Hours2200mAh
Capacity2200mAh
Rate8.14Wh
Gross Weight100g /3.53 oz
Approximate Weight100g /3.53 oz

Product Highlights

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

Frequently Asked Questions

The W8500 shuts off mid-call even though the screen showed 25% battery — is something wrong with the new cell?

Nothing is wrong with the cell itself. The shutdown happens because the fuel gauge IC on the W8500 is still reading from the old cell's discharge curve, and a modem transmission spike briefly pulls voltage below the protection threshold before the gauge corrects itself. Run one full discharge-charge cycle — drain to auto-shutoff, then charge to 100% without interruption. After that cycle the fuel gauge recalibrates its coulomb counter and the shutdowns at 20–30% stop.

Fast charging stopped working the first time I plugged in the new AB2400CWMC battery — is the charger broken?

The charger is fine. On the first charge cycle after a cell swap, the W8500's charge IC defaults to a lower current rate while it checks the new cell's impedance. This is normal BMS behaviour on a fresh Li-Polymer cell with higher initial internal resistance. Let the first charge complete at whatever rate the phone accepts — do not interrupt it. Fast charge typically resumes from the second cycle onward once the BMS has logged the cell's response.

The phone gets noticeably warm near the battery during the first few charges — is that normal for this replacement?

Yes, and it's specific to the first few cycles on a new Li-Polymer cell. A fresh cell has higher internal impedance than a broken-in one, so the charge IC dissipates slightly more energy as heat while pushing current into it. Warmth near the battery compartment during charging is expected and decreases as the cell cycles in. If the phone becomes hot to the touch — above what you'd call warm — stop charging and check that the termination voltage is not exceeding 4.2V using a battery monitoring app.

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Bancontact
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Related Products

Philips Xenium W8500 Replacement Battery, 3.7V, 2200mAh, Li-Polymer 1

Engineered for Performance. Built to Last.

Check out our top-rated selection of reliable products built to last. We offer high-quality options that deliver consistent performance for all your needs.

Our Collections