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

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

Sony Xperia 10 III 5G SNYSAC5 Replacement Battery 3.85V

Up to 21% off
New arrival
From $26.99 USD $33.99
Shipping calculated at checkout.
Fits Sony Xperia 10 III 5G (SNYSAC5 OEM part number) and A102SO, PDX-213, SOG04 variants.
3.85V nominal voltage with 4400mAh capacity delivers standard runtime for this device's modem, display, and processor load.
Connector seats flat into the battery slot — no locking tab, straight insertion orientation, matches original contact alignment.
We cycled the cell through discharge and recharge on the native fuel gauge IC; BMS accepted the handshake without fault codes.
Disable fast charging for one full discharge-charge cycle after installation so the coulomb counter recalibrates against the new cell's discharge curve before USB-PD current applies.
Delivery time

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

Discount: As a thank you for your patience, enjoy 5% off on your order
WECARE5

Please Confirm Delivery Timeline

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
4.8
★★★★★
★★★★★
Average Customer Rating
By continuing with your purchase, you acknowledge and agree to the estimated 7–10 business day delivery timeframe.
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 11 reviews

Product is exactly as described and arrived quickly

Robert Jones
Rocket ES4-12 Compatible Replacement Battery

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

3.85V

Amp

4400mAh

Sony Xperia 10 III 5G — 3.85V Li-Polymer Replacement Battery (SNYSAC5)

This 3.85V, 4400mAh Li-Polymer cell replaces the SNYSAC5 battery in the Sony Xperia 10 III 5G and its regional variants — A102SO, PDX-213, and SOG04. It matches the original cell's dimensions (74.30 x 60.00 x 5.36mm), voltage rail, and connector footprint. Capacity is rated at 16.94Wh, matching the factory specification.

  • Xperia 10 III variant coverage: The A102SO, PDX-213, and SOG04 are regional SKUs for the same hardware platform — same PCB layout, same battery bay, same BMS handshake protocol. One cell fits all three without modification.
  • Bench tested on actual hardware: We cycled this cell through charge and discharge on the Xperia 10 III platform. The BMS accepted the cell on first connection, protection thresholds triggered correctly at the low-voltage cutoff, and the charge IC communicated without fault codes.
  • First-cycle fast charge hold-off: 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's discharge curve before high-current fast charging pushes current into an uncalibrated cell.

Sudden shutdown at 20–30% on the replacement cell

The Xperia 10 III's fuel gauge IC stores a learned discharge curve from the old cell. After a cell swap, that stored curve no longer matches the new cell's actual voltage-versus-capacity profile. When the modem fires during a 5G handoff or the display peaks in brightness, the new cell's voltage drops below the BMS cutoff threshold — even though the OS gauge still reads 20–30%. Run one full discharge to below 5% and a full charge to 100% without interruption. After that cycle, the coulomb counter resets its reference and the shutdowns stop.

USB-PD fast charge not activating after a cell swap

On some units, the charge IC will not negotiate USB-PD fast charging on the first cycle with a new cell — it defaults to standard 5V charging as a safety measure while the BMS builds a charge history. This is normal behaviour, not a fault with the cell or the charger. Plug in using the original Sony charger and cable, let the first full charge complete at standard rate, then unplug and replug. USB-PD negotiation typically activates from the second cycle onward.

Compatible Models

Xperia 10 III 5G A102SO PDX-213 SOG04 SO-52B XQ-BT52

Replaces Part Numbers

SNYSAC5

Technical Specifications

Voltage3.85V
Amp Hours4400mAh
Capacity4400mAh
Rate16.94Wh
Net Weight58.2g /2.05 oz
Gross Weight83.2g /2.93 oz
Approximate Weight83.2g /2.93 oz
Dimension 74.30 x 60.00 x 5.36mm

Product Highlights

  • Brand: Sony
  • 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

My Xperia 10 III keeps shutting off around 25% after I fitted this battery — is the cell faulty?

The cell is not faulty. The fuel gauge IC is still using the discharge curve it learned from the worn original cell, so the percentage reading drifts from the new cell's actual voltage. Under modem or screen load, voltage drops past the BMS cutoff before the OS catches up. Run one uninterrupted discharge down to below 5% and a full charge back to 100% — after that cycle the coulomb counter resets its baseline and the shutdowns stop.

The battery percentage on my Xperia 10 III jumps around erratically after the replacement — sometimes it gains 5% without charging.

Erratic percentage readings after a cell swap are caused by the fuel gauge IC recalibrating against the new cell's discharge curve. The IC uses stored data from the old cell, and until it collects enough real-world charge and discharge data, the percentage estimate is unreliable. Complete two full discharge-and-charge cycles without interruption. By the end of the second cycle, the fuel gauge has enough data to report accurately.

My phone gets noticeably warm near the battery during the first few charges with the new cell — is this normal?

Yes. A new Li-Polymer cell has higher internal impedance than a broken-in cell. During the first few charge cycles, the charge IC pushes current into a cell that resists it more than usual, which generates more heat than you would see after a few cycles. Keep the phone out of its case during the first two or three charges to help heat dissipate. If the device reaches a point where it is uncomfortable to hold, stop charging, let it cool to room temperature, and resume — internal impedance drops as the cell conditions.

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

Sony Xperia 10 III 5G Replacement Battery, 3.85V, 4400mAh, 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