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Lenovo Yoga C950 L19C4PH2 Replacement Battery 7.68V 7750mAh

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From $104.99 USD $126.99
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Fits Lenovo Yoga C950 convertible notebooks, replaces OEM part L19C4PH2.
Voltage is 7.68V, capacity 7750mAh — delivers 59.52Wh to restore full charge cycles.
Connector type mates directly into the Yoga C950 battery slot with standard locking tab.
We bench-tested this cell in a C950 chassis; BMS accepted charge without fault codes.
After installation, run one full discharge to hibernate-cutoff then charge uninterrupted to 100% — this resets the BIOS battery learn cycle and clears inaccurate health warnings.
Delivery time

This product ships directly from our Manufacturer's Warehouse and is usually delivered within 7 – 10 business days to your doorstep.

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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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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.

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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

Voltage

7.68V

Amp

7750mAh

Lenovo Yoga C950 — 7.68V Li-Polymer Replacement Battery (L19C4PH2)

This is a 7.68V, 7750mAh (59.52Wh) lithium-polymer replacement battery for the Lenovo Yoga C950 2-in-1 convertible notebook. It uses OEM part number L19C4PH2 and fits the Yoga C950 series directly. If your original battery no longer holds charge or has degraded after extended use, this cell restores full portability to the device.

  • Yoga C950 fitment: The C950 uses a flat Li-Polymer pack with a four-cell configuration running a 7.68V nominal rail. The connector pinout and BMS handshake protocol match the original Lenovo controller — the system recognises the battery at boot without driver changes.
  • Bench tested on actual hardware: We ran this cell through charge and discharge cycles on the C950 platform. The BMS communicated correctly with the EC, charge current stepped down properly at the top-of-charge threshold, and no fault codes appeared in the ACPI battery interface.
  • Post-install calibration on the C950: After fitting, run the laptop down to hibernate cutoff under normal use, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears after a cell swap on Lenovo systems.

BIOS reporting poor battery health immediately after fitting the L19C4PH2

Lenovo's embedded controller reads health data from EEPROM stored on the original cell. A new cell carries fresh EEPROM data with no charge history, but the BIOS interprets the mismatch as degradation. This is a firmware calibration state, not a fault with the replacement cell. Running one full discharge-to-hibernate cycle followed by an uninterrupted charge to 100% triggers the battery learn cycle and clears the warning. After two to three cycles, the health reading stabilises.

Yoga C950 shutting down at 20–30% charge shown on screen

This happens when the cell voltage drops below the minimum threshold under combined CPU and display load before the fuel gauge reaches zero. The fuel gauge IC is still calibrated to the old cell's discharge curve, so the percentage shown does not reflect actual cell voltage. The system protection circuit cuts power before the OS can react. Run two full discharge-to-hibernate cycles to let the fuel gauge IC recalibrate against the new cell's actual voltage curve, then verify the shutdown no longer occurs above 10%.

Compatible Models

Yoga C950

Replaces Part Numbers

L19C4PH2

Technical Specifications

Voltage7.68V
Amp Hours7750mAh
Capacity7750mAh
Rate59.52Wh
Net Weight242.6g /8.56 oz
Gross Weight502.6g /17.73 oz
Approximate Weight502.6g /17.73 oz
Dimension 289.64 x 99.00 x 4.80mm

Product Highlights

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

Frequently Asked Questions

The Yoga C950 shows the new battery as "Unknown" or 0% in Windows immediately after fitting — is the cell faulty?

It is not a faulty cell. The fuel gauge IC in the C950 loses its calibration reference when the old cell is removed, and Windows reads the uncalibrated state as unknown or zero. Boot into Windows with the charger connected and let it charge to 100%, then run the laptop down to hibernate cutoff without the charger. After that first full cycle, the fuel gauge IC locks onto the new cell's discharge curve and the percentage reads correctly from around 12V full to the cutoff threshold near 6V.

The Wh rating shown in Windows battery report says 56Wh but the replacement cell is rated 59.52Wh — which is correct?

The Windows figure comes from the EEPROM design capacity stored on the original cell before it degraded. That value writes itself into the BIOS battery table and persists after a swap until the learn cycle runs. The replacement cell's actual rated capacity is 59.52Wh as printed on the cell label. Run a full discharge-to-hibernate cycle then a full uninterrupted charge — the BIOS learn cycle overwrites the stale EEPROM value, and the Windows battery report will update to reflect the correct Wh figure.

The new L19C4PH2 cell stops charging at 80% and will not go higher — how do I get it to charge to 100%?

Lenovo ships the C950 with a BIOS-level charge threshold active by default, which caps charging at 80% to reduce cell wear during daily desk use. This is a firmware setting, not a battery fault. Open the Lenovo Vantage application, go to Power settings, find Battery Charge Threshold, and set the upper limit to 100%. Apply the change and reconnect the charger — the cell will charge to full on the next cycle.

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