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Gateway M360 14.8V Replacement Battery 103329 4400mAh

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From $77.99 USD $95.99
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Fits Gateway M360 notebook; replaces OEM part numbers 103329, 103926, 106214, 106229, 106842, 106868, and equivalent SQU-series cells.
14.8V, 4400mAh lithium-ion delivers 65.12Wh—sufficient for full-day portable work without midday AC charging.
Connector seats flush into the M360 battery slot with dual locking tabs; orientation is keyed and will not force.
We bench-tested this cell in an M360 chassis under sustained CPU load; the BMS held voltage stable through the discharge curve with no premature cutoff or thermal throttle.
After installation, run one full discharge to sleep mode, then charge uninterrupted to 100%—this resets the BIOS battery learn cycle and clears the inaccurate health warnings that appear after every cell swap on Gateway platforms.
Delivery time

This product ships directly from our Manufacturer’s Warehouse and is usually delivered within 5 – 8 business days to your doorstep.

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

Gateway M360 / M460 / M680 Series — 14.8V Li-ion Replacement Battery (SQU-412 / 103329)

This is a 14.8V, 4400mAh (65.12Wh) Li-ion battery for the Gateway M360, M460, M680, and NX500 notebook series. It replaces OEM part numbers including 103329, SQU-412, SQU-413, 916C3350F, and 3UR18650F-2-QC-MA1, among others. If your original cell is no longer holding a charge or your laptop refuses to run off battery, this is the direct cell replacement.

  • M360 / M460 / M680 / NX500 platform fit: These models share the same 14.8V four-cell series architecture and connector pinout. The BMS on each uses the same charge termination logic, so one cell SKU covers the full range without any wiring or firmware conflict.
  • Bench tested on actual hardware: We cycled this cell through charge-to-cutoff and discharge-to-hibernate on compatible hardware. The BMS held charge termination at the correct 16.8V ceiling and tripped the low-voltage cutoff cleanly without false shutdowns mid-cycle.
  • First-cycle calibration tip for the M360 BIOS: After fitting this cell, run the laptop on battery until Windows forces hibernation, then charge it uninterrupted to 100%. This gives the BIOS fuel gauge IC one clean reference cycle against the new cell and clears the inaccurate health warning that appears immediately after every cell swap.

Why the M360 BIOS flags a new battery as "poor health" on first boot

The Gateway M360 BIOS reads health data from the battery's EEPROM on every boot. When a new cell goes in, the EEPROM holds factory default values that don't match the charge history the BIOS expects to see from a used pack. The system interprets the mismatch as a degraded cell rather than a fresh one. Running one full discharge-to-hibernate followed by an uninterrupted charge to 100% forces the fuel gauge IC to rewrite its internal state against actual measured capacity, which clears the warning on the next boot.

Laptop shuts down at 20–30% shown on the M360 fuel gauge

This happens when the fuel gauge IC hasn't been calibrated against the new cell's actual voltage curve. The gauge was trained on the old, degraded cell and its low-voltage threshold is now misaligned — the laptop hits its hardware cutoff while the OS still shows charge remaining. It is not a fault with the replacement cell. Run two full discharge-to-hibernate cycles followed by full uninterrupted charges. After the second cycle, the fuel gauge recalibrates and the shutdown threshold should align with the displayed percentage at or below 5%.

Compatible Models

M360 M460 M680 NX500 NX550 NX850 NX860 MX6000 MX6100 MX6400 MX6600 MX8500 S-7710N S-7510N 6000 6500 8500 6010GZ 6018GH 6018GZ 6020GZ 6021GH 6021GZ 6022GZ 6023GP 6510GZ 6525GP 8510GH 8510GZ 8515GZ 8550GB M460A M460S M460X M460XL M465-E M465-G M685 M685E MX6025 MX6025h MX6027 MX6027h MX6030 MX6124 MX6124h MX6128 MX6135 MX6420 MX6421 MX6423 MX6424 MX6425 MX6428 MX6436 MX6437 MX6438 MX6440 MX6442 MX6450 MX6455 MX6625 MX6627 MX6627h MX6629 MX6629h MX6631 MX6650 MX6650h MX6961 MX8520 MX8523 MX8525 MX8528 NX500S NX500X NX550X NX550XL NX560X NX560XL NX850X NX850XL S-7500N S-7700N

Replaces Part Numbers

103329 103926 106214 106229 106842 106868 1533557 1533558 3UR18650F-2-QC-MA1 3UR18650F-2-QC-MA6 4UR18650-2-QC-MA1 6500948 6500949 6500982 6MSB 8MSB 916-4060 916C3350F 916C3360F 916C4720F 916C4730F MA1 3S2P 4S2P SQU-412 SQU-413 SQU-414 SQU-415

Technical Specifications

Voltage14.8V
Amp Hours4400mAh
Capacity4400mAh
Rate65.12Wh
Net Weight300g /10.58 oz
Gross Weight570g /20.11 oz
Approximate Weight570g /20.11 oz
Dimension 269.00 x 48.90 x 22.60mm

Product Highlights

  • Brand: Gateway
  • 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

My Gateway M360 shows the battery as "0%" or "unknown" right after fitting the new cell — is the battery dead?

No. The Gateway BIOS reads EEPROM data on first boot and returns a zero or unknown state when that data doesn't match its expected charge history — this is an EEPROM initialisation issue, not a fault with the new cell. Plug in the AC adapter, let the battery charge uninterrupted to 100%, then discharge fully to hibernate. After that first calibration cycle, the BIOS will register the cell correctly and display an accurate percentage.

The Gateway M360 fuel gauge swings wildly — showing 80%, then jumping to 45% a few minutes later. What's causing that?

The fuel gauge IC uses a model built from the old cell's voltage-to-capacity curve. When a new cell goes in with a different internal resistance profile, the IC's predictions become erratic because the underlying model no longer fits. This is normal for the first two to three cycles and resolves itself as the IC collects real discharge data from the new cell. Run two complete discharge-to-hibernate and full-charge cycles and the readings will stabilise.

Windows shows this battery rated at a different Wh than expected — should I be concerned?

The Wh figure Windows reports is pulled from the battery EEPROM's design capacity field, which is a static value written at manufacture. The actual measured capacity after a calibration cycle may read slightly differently depending on how the fuel gauge IC reports accumulated data to the OS. This cell is rated at 65.12Wh (14.8V × 4400mAh). If the figure in Windows differs, run one full discharge-to-hibernate cycle followed by a full uninterrupted charge — the OS will re-read the updated fuel gauge register and the reported value will align with the actual cell rating.

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