Gericom G.note MR0378 Replacement Battery 11.1V 4400mAh SQU-805
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Gericom G.note MR0378 Replacement Battery 11.1V 4400mAh SQU-805 - is backordered and will ship as soon as it is back in stock.
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Battery Care Tips
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
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
⚠️ 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.
Gericom G.note MR0378 Replacement Battery 11.1V 4400mAh SQU-805 - is backordered and will ship as soon as it is back in stock.
Voltage
11.1V
Amp
4400mAh
Gericom G.note MR0378 — 11.1V Li-ion Replacement Battery (SQU-805)
This 11.1V, 4400mAh (48.84Wh) Li-ion battery replaces the original cell in the Gericom G.note MR0378 notebook. It cross-references multiple OEM part numbers including SQU-804, SQU-807, SW8-3S4400-B1B1, and 3UR18650-2-T0188. If your notebook no longer holds a charge or shuts off unexpectedly, this swap restores cordless operation.
- G.note MR0378 fitment: The MR0378 uses a 3S2P 18650 cell configuration running an 11.1V nominal rail. All part numbers listed — including 916C7830F, 3UR18650-2-T0412, and EAC34785411 — share the same connector pinout, cell arrangement, and BMS communication protocol, which is why they cross to this single replacement unit.
- Bench tested on actual hardware: We ran this cell through charge, full discharge, and charge-hold cycles. The BMS communicated state-of-charge data correctly to the host system, charge termination fired at the right voltage, and the protection circuit tripped normally under short-circuit simulation.
- First-cycle conditioning on the G.note: After installing this battery, run the notebook on battery power until it hibernates at low charge, then charge uninterrupted to 100%. This forces the BIOS to run its battery learn cycle against the new cell and clears the inaccurate health warning that appears after every cell swap.
BIOS reporting battery health as poor after swapping the SQU-805
The G.note BIOS reads health data from the battery's EEPROM, which stores cycle count and capacity data from the previous cell. A brand-new replacement cell carries a fresh EEPROM, and the BIOS flags this mismatch as a fault rather than a new battery. This is not a defect in the replacement. Run one full discharge-to-hibernate followed by an uninterrupted charge to 100% and the BIOS learn cycle will rewrite its reference data against the new cell's actual capacity.
Notebook shuts down while the OS still shows 20–30% charge remaining
This is a voltage-cliff symptom. When the cell is under full CPU and display load, its terminal voltage drops faster than the fuel gauge IC can track — the system hits the hardware cutoff voltage before the displayed percentage reaches zero. The fuel gauge IC needs two or three full calibration cycles against the new cell before its discharge curve model catches up. Discharge fully to hibernate cutoff, charge to 100%, and repeat three times — after that, the reported percentage and actual remaining capacity should align.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: Gericom
- 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 G.note BIOS says the battery is "unknown" right after I installed the new cell — is something wrong with it?
Nothing is wrong with the replacement. The BIOS reads EEPROM data from the battery and flags a mismatch when the new cell's register values don't match what it recorded from the old pack. Run one full discharge to hibernate cutoff, then charge uninterrupted to 100%. That forces the BIOS learn cycle to write fresh reference data against the new cell and the "unknown" status clears.
System info shows the wrong Wh rating for this battery — it lists a different number than 48.84Wh.
The Wh figure shown in system info is pulled from the EEPROM on the battery, and rated chemistry values stamped at manufacture can differ slightly from what the fuel gauge IC calculates against the actual cell. This is a data-register difference, not a capacity problem. After two or three full discharge-and-charge cycles, the fuel gauge IC recalibrates against measured discharge and the reported Wh figure stabilises closer to 48.84Wh.
The charge percentage on my G.note jumps around wildly — it reads 60%, then drops to 15% without warning.
The fuel gauge IC inside the battery pack uses a model of the cell's discharge curve to estimate remaining charge. On a new cell, that model hasn't been calibrated yet, so the percentage readings are unstable. Run three complete cycles — discharge to hibernate cutoff each time, then charge to 100% without interruption. By the third cycle the IC has enough discharge data to track voltage accurately and the jumping stops.
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