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Schenker XMG U505 Replacement Battery 14.8V 4400mAh

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From $110.99 USD $133.99
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Fits Schenker XMG U505, XMG U705, and 35+ related XMG gaming laptop models as direct replacement.
14.8V, 4400mAh (65.12Wh) lithium-ion restores full capacity to run CPU and GPU loads untethered.
Connector seats into the XMG proprietary slot with single-stage locking tab; orientation keyed to prevent reversed insertion.
Bench testing showed stable voltage hold under sustained gaming load; BMS accepted charge cycle without fault codes.
After installation, run one full discharge to hibernation cutoff, then charge uninterrupted to 100% — this resets the BIOS battery learn cycle and clears health warnings that appear after cell swaps.
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
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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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By continuing with your purchase, you acknowledge and agree to the estimated 7–10 business day delivery timeframe.
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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

14.8V

Amp

4400mAh

Schenker XMG U505 / U705 Series — 14.8V Li-ion Replacement Battery

This is a 14.8V, 4400mAh (65.12Wh) Li-ion battery for the Schenker XMG U505, U705, U507, U706-1ab, and over 35 additional XMG variants. It replaces the original cell when the laptop no longer holds charge or fails to power on from battery. Voltage, connector, and BMS signalling match the original specification.

  • XMG U500 and U700 series compatibility: These models share a 14.8V four-cell architecture, the same physical connector, and a common BMS communication protocol. A single replacement cell covers the full range without modification.
  • Bench tested on actual hardware: We ran this cell through a full charge and discharge cycle on XMG U505 hardware. The BMS handshake completed correctly, charge accepted to capacity, and the protection circuit responded appropriately at low-voltage cutoff.
  • Post-install calibration on XMG systems: After fitting, run the laptop on battery until it hibernates at cutoff, then charge uninterrupted to 100% without powering on mid-cycle. This forces the BIOS battery learn cycle to reset against the new cell and clears the inaccurate health warning that appears after every cell swap.

BIOS reporting battery health as poor immediately after fitting

XMG laptops store battery health data in EEPROM on the old cell. When a new cell is installed, the BIOS reads no prior charge history and flags health as unknown or poor. This is a data state, not a hardware fault. Running one complete discharge-to-hibernate followed by a full uninterrupted charge gives the BIOS enough cycle data to recalculate health correctly. After two to three full cycles, the health indicator typically clears to normal.

Laptop cutting out at 20–30% shown on the OS fuel gauge

The fuel gauge IC calibrates against the old cell's discharge curve. After a swap, the stored curve no longer matches the new cell, so the reported percentage drifts from actual voltage. Under full CPU and display load, the real cell voltage drops below the BMS cutoff threshold while the gauge still shows 20–30% remaining. Run two full discharge-to-hibernate cycles to let the fuel gauge IC recalibrate against the new cell's actual curve. If cutoff still occurs early, check that the cell resting voltage reads at least 14.4V after a full charge.

Compatible Models

XMG U505 XMG U705 XMG U507 XMG U706-1ab XMG U705-3UK XMG U706-jmx XMG U716 XMG U706-2in XMG U705-5AH XMG U706-mkd XMG U705-1AR XMG U706-4ob XMG U705-7AF XMG U706-qtf XMG U705-1UW XMG U706-6uh XMG U506 XMG U705-9EL XMG U706-wpd XMG U705-3EY XMG U706-ftm XMG Ultra 17 XMG U706-2AY XMG Ultra 17 Turing XMG U705-4UZ XMG U706-kms XMG U706-4at XMG U505 Pro XMG U705-5AW XMG U706-phs XMG U705-1UM XMG U706-5uc XMG U706 XMG U705-7EF XMG U706-vbj XMG U705-2AD XMG U706-7IM W706 W705

Technical Specifications

Voltage14.8V
Amp Hours4400mAh
Capacity4400mAh
Rate65.12Wh
Net Weight432g /15.24 oz
Gross Weight582g /20.53 oz
Approximate Weight582g /20.53 oz
Dimension 137.10 x 89.10 x 24.10mm

Product Highlights

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

Frequently Asked Questions

The XMG U505 BIOS is showing the new battery as "0% health" right after I installed it — is the cell faulty?

The cell is almost certainly fine. XMG's BIOS reads health history stored in the old cell's EEPROM, and a fresh cell has no prior data to read. Run one full discharge to hibernate cutoff, then charge uninterrupted to 100% without powering on mid-cycle. That resets the BIOS battery learn cycle against the new cell, and the health reading corrects within two to three full cycles.

System info shows this battery as 48Wh but the spec says 65Wh — why does the Wh rating look wrong?

The Wh figure displayed in Windows or the BIOS is pulled from EEPROM data embedded in the battery's firmware, not measured live from the cell. On a replacement cell, that stored value can differ from the actual chemistry rating until the fuel gauge IC has enough cycle data to reconcile the two. This does not affect charge acceptance or discharge behaviour. Run two full charge and discharge cycles and the reported Wh figure will typically align closer to the rated 65.12Wh.

My XMG U705 stops charging at exactly 80% and won't go higher — is the replacement battery defective?

This is almost always a BIOS-controlled charge limit, not a battery fault. Schenker and XMG systems include a charge threshold setting in the BIOS or the Control Center software that caps charging at 80% to reduce long-term cell stress when the laptop sits plugged in. Open the XMG Control Center or enter the BIOS and check the battery charge limit setting. Set it to 100%, save, and reboot — charging will resume to full capacity.

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