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Packard Bell EasyNote SB85 11.1V Replacement Battery SQU-702

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From $99.99 USD $119.99
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Fits Packard Bell EasyNote SB85 and replaces OEM part numbers SQU-702, SQU-703, 4UR18650F-QC-PL1A, 4UR18650Y-2-QC-PL1, 4UR18650Y-QC-PL1A, and related Packard Bell battery part codes.
11.1V, 4400mAh lithium-ion cell delivers 48.84Wh capacity — matches the stock pack and sustains full CPU load without voltage sag during extended portable sessions.
Connector slides straight onto the notebook dock with positive terminal facing left; plastic locking tab seats flush with the battery bay wall for secure retention.
We bench-tested the SQU-702 cell against a Packard Bell charger circuit — BMS accepted the handshake without fault codes and held cutoff voltage stable under discharge load.
After installation, discharge fully to sleep mode then charge uninterrupted to 100% — this resets the BIOS battery learn cycle and clears false low-health warnings that appear after every cell swap.
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

11.1V

Amp

4400mAh

Packard Bell EasyNote SB85 Series — 11.1V Li-ion Replacement Battery (SQU-702)

This 11.1V, 4400mAh (48.84Wh) Li-ion battery replaces the original cell in the Packard Bell EasyNote SB85 and closely related models including the EasyNote F0335, MZ35, and MZ36. It fits using OEM part numbers SQU-702 and SQU-703, along with a range of compatible references including 916C6080F and EUP-P3-4-22. The connector, BMS handshake, and voltage rail match the original specification.

  • EasyNote SB85 and related models: The SB85, MZ35, MZ36, and F0335 share the same battery bay geometry, 11.1V three-cell voltage rail, and BMS communication protocol. That is why a single SKU covers all of them — the BIOS fuel gauge IC reads the same EEPROM data structure across the range.
  • Bench tested on actual hardware: We ran this cell through full charge and discharge cycles on EasyNote-platform hardware. The BMS accepted the charge handshake without error flags, and the BIOS battery health screen cleared to normal status after one full calibration cycle.
  • First-install discharge cycle: After fitting, let the laptop run on battery until it hibernates at low-voltage cutoff, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that almost always appears after a cell swap on this platform.

BIOS reporting battery health as poor immediately after fitting

The EasyNote BIOS stores charge history and health data in the old cell's EEPROM. When a new cell goes in, that data is blank or mismatched, so the BIOS flags poor health before any real usage data exists. This is not a fault with the replacement cell — it is a data gap. Run one full discharge-to-hibernate cycle followed by an uninterrupted charge to 100%, and the BIOS will rewrite its health baseline against the new cell's actual capacity.

Laptop shuts down abruptly at 20–30% charge shown on screen

This is a voltage cliff issue, not a capacity problem. Under combined CPU and display load, the cell voltage drops faster than the fuel gauge IC can track, and the BMS triggers a hard cutoff before the displayed percentage reaches zero. It typically appears in the first few cycles before the fuel gauge IC has calibrated against the new cell's discharge curve. Run two or three full discharge-to-hibernate cycles to let the IC remap the voltage curve. After calibration, the reported percentage at shutdown should align with actual remaining capacity.

Compatible Models

EasyNote SB85 EasyNote F0335 EasyNote MZ35 EasyNote MZ36 Easynote SB86 EasyNote Minos GP2 EasyNote Minos GP2W EasyNote Minos GP3 EasyNote Minos GP3W EasyNote Minos MGP20 EasyNote MZ35-001 EasyNote MZ35-200 EasyNote MZ35-216 EasyNote MZ35-V-013 EasyNote MZ35-V-036 EasyNote MZ35-V-060 EasyNote MZ35-V-009 EasyNote MZ35-V-075 EasyNote MZ35-U-005 EasyNote MZ36-R-017 EasyNote MZ36-T-015 EasyNote MZ36-T-026 EasyNote MZ36-U-024-UK EasyNote MZ36-V-107 EasyNote MZ36-V-117 EasyNote MZ36-U-086 EasyNote MZ36-U-038 EasyNote MZ36-T-019 EasyNote MZ36-V-122 EasyNote MZ45 EasyNote SB88-P-009 EasyNote SB89-P-013 EasyNote SB89-P-024 EasyNote SB89-P-020W

Replaces Part Numbers

SQU-702 SQU-703 4UR18650F-QC-PL1A 4UR18650Y-2-QC-PL1 4UR18650Y-QC-PL1A 916C6080F 916C6110F 916C7010F 916C7030F 916C7660F 916C7680F CGR-B/458 CGR-B/8D8 EUP-P3-3-22 EUP-P3-4-22 EUP-P3-4-23 EUP-P5-1-22 AL-096 PL3C AL-096 PL5C

Technical Specifications

Voltage11.1V
Amp Hours4400mAh
Capacity4400mAh
Rate48.84Wh
Net Weight336g /11.85 oz
Gross Weight486g /17.14 oz
Approximate Weight486g /17.14 oz
Dimension 206.20 x 61.20 x 20.10mm

Product Highlights

  • Brand: Packard Bell
  • 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 EasyNote shows 0% or "unknown" battery right after I put the new cell in — is it dead?

It is not dead. The BIOS fuel gauge IC is reading blank EEPROM data from the new cell and has no charge history to work from yet. Run the laptop on battery until it hibernates at low-voltage cutoff, then charge uninterrupted to 100%. After one full cycle the BIOS will register the cell correctly and the 0% or unknown status will clear.

System info shows the wrong Wh rating — it says something different from 48.84Wh — should I be worried?

The Wh figure shown in system info is read from the cell's EEPROM, which stores the rated value written at manufacture. That figure can differ from the label spec due to rounding differences between the cell manufacturer and the OEM. The actual delivered capacity is what matters, and it aligns with the 48.84Wh spec after calibration cycles. Check the reported figure again after two full discharge-charge cycles — it will stabilise.

The battery gauge is jumping around — showing 60%, then 80%, then 45% within minutes on the EasyNote — what is happening?

The fuel gauge IC uses data from the previous cell to estimate state of charge, and that data does not match the new cell's discharge curve. Until the IC runs two or three full calibration cycles against the replacement cell, the percentage readout will be erratic. Run the laptop on battery to hibernate cutoff, charge to 100%, and repeat twice more. By the third cycle the gauge will track accurately against actual voltage.

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