Lenovo Yoga S750-14 Pro Compatible Battery L19C4PH3 15.44V
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Lenovo Yoga S750-14 Pro Compatible Battery L19C4PH3 15.44V - 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.
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Disclaimer
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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.
Lenovo Yoga S750-14 Pro Compatible Battery L19C4PH3 15.44V - is backordered and will ship as soon as it is back in stock.
Voltage
15.44V
Amp
3850mAh
Lenovo Yoga S750-14 Pro — 15.44V Li-Polymer Replacement Battery (L19C4PH3)
This 15.44V, 3850mAh (59.44Wh) Li-Polymer battery replaces the original L19C4PH3 cell in the Lenovo Yoga S750-14 Pro and Yoga Slim 7 Pro 14ACH5 series. The pack dimensions are 290.34 × 89.60 × 5.60mm, matching the original footprint inside the chassis. Compatible OEM part numbers include L19D4PH3, L19M4PH3, 5B10Z49514, 5B10Z49518, 5B10Z49519, and SSB10Z49515.
- Yoga S750-14 Pro and Slim 7 Pro 14ACH5 compatibility: These models share the same 15.44V four-cell battery rail, connector pinout, and BMS handshake protocol. Any variant carrying an L19-series part number will accept this pack without modification.
- Bench tested on actual hardware: We ran this cell through full charge and discharge cycles on a Yoga Slim 7 Pro 14ACH5 unit. The BMS handshake completed normally, charge accepted without interruption, and the protection circuit triggered correctly at the low-voltage cutoff threshold.
- Post-install calibration for the Yoga S750-14 Pro: After fitting this battery, run one full discharge to hibernate-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.
BIOS reporting battery health as poor immediately after replacement
Lenovo's embedded controller reads cycle count, charge history, and rated capacity from EEPROM data stored in the outgoing cell. When a new cell is installed, that EEPROM register is blank or carries mismatched values, so the BIOS flags the battery as degraded before it has run a single cycle. This is a firmware interpretation issue, not a cell fault. Run one complete discharge-to-hibernate followed by a full uninterrupted charge. After two to three cycles the fuel gauge IC recalibrates against the new cell chemistry and the health status normalises.
Laptop shutting down at 20–30% charge shown on screen
This happens when the fuel gauge IC still holds calibration data from the old, degraded cell. The percentage readout appears stable, but the new cell hits a voltage cliff under combined CPU and display load that the uncalibrated gauge did not anticipate. The system interprets the sudden voltage drop as a critical low-battery event and shuts down to protect the hardware. To fix it, fully discharge to hibernate-cutoff — do not force-shutdown — then charge to 100% without interruption. Repeat this cycle twice more until the gauge tracks accurately against real cell voltage.
Compatible Models
Replaces Part Numbers
Technical Specifications
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 system info screen shows the wrong Wh rating after I swapped the battery — is the new cell the wrong size?
The Wh value displayed in system information is pulled from EEPROM data embedded in the battery pack, and that value sometimes differs from the actual chemistry rating of the new cell. The cell itself is correct — 59.44Wh at 15.44V matches the L19C4PH3 specification. Run two full discharge-to-hibernate and charge-to-100% cycles; once the fuel gauge IC recalibrates, the displayed Wh figure will align with the actual pack rating.
Charging stops at 80% and never goes higher — did I get a faulty battery?
This is a BIOS-controlled charge limit, not a battery fault. Lenovo's firmware on the Yoga S750-14 Pro and Slim 7 Pro 14ACH5 includes a conservation mode that caps charging at 80% to reduce cell wear during periods of frequent AC use. Open Lenovo Vantage, navigate to Power, select Battery Charge Threshold, and switch the mode from Conservation to Normal. Charging will then proceed to 100%.
The OS fuel gauge jumps between wildly different percentages for the first few days after fitting the new cell — what is causing that?
The fuel gauge IC in the Lenovo Yoga S750-14 Pro was calibrated to the discharge curve of the old, degraded cell. When a new cell with a different state-of-charge profile is installed, the IC is essentially reading against the wrong curve, so the percentage output is erratic. This is not a hardware fault — the IC needs calibration cycles against the new cell to build an accurate model. Run three complete discharge-to-hibernate cycles followed by uninterrupted charges to 100%, and the gauge will stabilise.
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