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Mitac Systemax Pursuit 8880 14.8V Replacement Battery 4400mAh

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From $71.99 USD $88.99
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Fits Systemax Pursuit 8880, Pursuit T2100, Pursuit NX-8080, and Pursuit M8080 notebooks. Replaces OEM part numbers 442675300002, 442675300003, 442675300005, 442675300007, and 8UR18650F-SECT-QC10.
14.8V, 4400mAh lithium-ion pack delivers 65.12Wh total capacity for full cordless operation on this mid-2000s Systemax platform.
Three-pin connector slot aligns vertically into the Pursuit 8880 bay with a single locking tab on the left side of the pack.
We bench-tested this cell on a Pursuit 8880 unit; BMS accepted the new pack without fault codes and held 14.8V under sustained CPU load.
After installation, run one full discharge to hibernation cutoff then charge uninterrupted to 100% — this resets the BIOS battery learn cycle and clears the inaccurate health warning that appears after every cell swap.
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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.

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⚠️ 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

Mitac Systemax Pursuit 8880 — 14.8V Li-ion Replacement Battery (442675300002)

This 14.8V, 4400mAh Li-ion battery replaces the original pack in the Systemax Pursuit 8880 and related Pursuit-series notebooks. It fits the Pursuit 8880, T2100, NX-8080, and M8080 among others. Voltage and capacity match OEM spec exactly — 14.8V nominal, 65.12Wh total.

  • Pursuit-series platform fit: These Systemax Pursuit models share the same 14.8V four-cell Li-ion architecture, identical connector pinout, and BMS handshake protocol. One battery services the whole family without modification.
  • Bench tested on actual hardware: We cycled this cell through charge and load on the bench. The BMS balanced all four cell groups correctly, held stable voltage under sustained CPU and display load, and tripped thermal cutoff only at the rated threshold — not prematurely.
  • First-cycle recalibration on Pursuit notebooks: After installing, run a full discharge to hibernate cutoff, then charge uninterrupted to 100%. This forces the BIOS battery learn cycle to reset against the new cell data and clears the false health warning that appears after every cell swap.

BIOS reporting poor battery health immediately after fitting a new cell

The Pursuit BIOS reads health status from EEPROM data carried over from the old pack — not from the new cell's actual chemistry. Until you run a full learn cycle, the firmware assumes the replacement is the same degraded cell it just saw. One complete discharge-to-hibernate followed by an uninterrupted full charge writes fresh reference data into the EEPROM. After that cycle, the health indicator updates to reflect the actual state of the new cell.

Pursuit 8880 shutting down abruptly at 20–30% charge shown

This is a voltage cliff, not a capacity problem. Under combined CPU and display load, the cell voltage drops faster than the fuel gauge IC can track — the system hits the low-voltage cutoff before the displayed percentage reaches zero. It happens most on cells that have never been calibrated to this platform. Run two full discharge-to-hibernate cycles to let the fuel gauge IC map the voltage curve against real load. After calibration, the shutdown threshold and the displayed percentage should align at or below 5%.

Compatible Models

Systemax Pursuit 8880 Systemax Pursuit T2100 Systemax Pursuit NX-8080 Systemax Pursuit M8080 Systemax Pursuit 8080 Systemax Pursuit 8080P Systemax Pursuit 4000 Systemax Pursuit 4010

Replaces Part Numbers

442675300002 442675300003 442675300005 442675300007 8UR18650F-SECT-QC10

Technical Specifications

Voltage14.8V
Amp Hours4400mAh
Capacity4400mAh
Rate65.12Wh
Gross Weight100g /3.53 oz
Approximate Weight100g /3.53 oz

Product Highlights

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

Frequently Asked Questions

My Pursuit 8880 shows the new battery as "0% available (plugged in, charging)" and it never moves — what's wrong?

The fuel gauge IC on the Pursuit's motherboard is still reading EEPROM data from the old, degraded cell. It has no reference point for the new cell's voltage curve yet. Let the battery charge uninterrupted to 100%, then run a full discharge to hibernate cutoff — that one cycle gives the IC enough data to re-anchor its fuel map. After the hibernate cutoff, plug back in and charge fully; the percentage should track accurately from that point.

System info shows this battery as 48Wh but the spec says 65.12Wh — is the cell wrong?

The Wh figure in system info is pulled from the EEPROM value written when the original cell was manufactured — it reflects the old pack's rated capacity, not the replacement cell's. This is a firmware read issue, not a hardware fault. Run the full battery learn cycle (discharge to hibernate, then uninterrupted charge to 100%) and the BIOS will recalculate the Wh figure against the actual measured capacity of the new cell.

New battery installed but charge stops at roughly 80% and won't go higher — is the cell defective?

On many Pursuit-series notebooks, the BIOS includes a charge-limit setting that caps charging at 80% to reduce cell stress during long plugged-in sessions. Check the BIOS power management page under Battery Charge Threshold or similar — if the limit is enabled, disable it and reboot. If no such setting exists, run a full discharge to hibernate cutoff; occasionally the BMS holds the charge limit until it sees one full cycle on the new cell. After that cycle, plug in and confirm charge progresses past 80%.

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