HP Envy 17m LK03XL Compatible Battery 11.55V 4400mAh
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HP Envy 17m LK03XL Compatible Battery 11.55V 4400mAh - 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
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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.
HP Envy 17m LK03XL Compatible Battery 11.55V 4400mAh - is backordered and will ship as soon as it is back in stock.
Voltage
11.55V
Amp
4400mAh
HP Envy 17m / ZBook 15v G5 — 11.55V Li-ion Replacement Battery (LK03XL)
This is an 11.55V, 4400mAh (50.82Wh) Li-ion replacement battery for the HP Envy 17m, Envy 17M-AE0XX, Envy X360 15-CN0007NW, and ZBook 15v G5 series. It replaces OEM part numbers LK03XL, HSTNN-UB7I, TPN-W127, TPN-W128, and TPN-W129, among others. Install it when the original cell no longer holds charge or the OS reports degraded capacity.
- Envy 17m and ZBook 15v G5 platform fit: These models share the same 11.55V three-cell battery rail, identical connector pinout, and matching BMS handshake protocol — which is why one replacement cell covers the full range from the Envy 17M-AE0XX to the ZBook 15v G5 4QH58EA.
- Bench tested on actual hardware: We cycled this cell through charge and discharge on an Envy 17m chassis, confirmed the BMS completed its handshake without error flags, and verified the fuel gauge IC registered the cell correctly after two calibration cycles.
- Post-install discharge cycle on the Envy 17m: After fitting this battery, run the laptop on battery only until it hibernates at the low-voltage cutoff, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning the firmware displays after every cell swap.
Why the Envy 17m BIOS reports poor battery health immediately after a replacement
The Envy 17m BIOS reads health data from the battery's EEPROM — a small memory chip that stores charge cycle count, rated capacity, and manufacturer data. When a new cell arrives, that EEPROM data doesn't match the history the BIOS has accumulated from the old battery. The firmware flags this as a health warning rather than treating it as a fresh cell. One full discharge-to-hibernate followed by an uninterrupted charge to 100% allows the BIOS learn cycle to re-calibrate against the new cell's actual data.
Envy 17m shutting down at 20–30% battery shown on screen
This happens when the cell voltage drops below the BMS cutoff threshold under combined CPU and display load, even though the OS fuel gauge still shows charge remaining. The fuel gauge IC hasn't yet mapped the new cell's discharge curve, so its percentage estimate runs ahead of real voltage. The cell hits roughly 10.0V under load and the BMS trips before the gauge reaches zero. Run two full discharge-and-charge cycles to let the fuel gauge IC learn the actual voltage-to-capacity curve for this cell.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: HP
- 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
HP Support Assistant says my new LK03XL battery has 0% health and is "unknown" — is the battery actually faulty?
No — the HP Envy 17m firmware reads health status from the battery's EEPROM, and a freshly installed cell carries no accumulated cycle history, so the BIOS flags it as unknown rather than healthy. This is a calibration gap, not a defective cell. Run one full discharge to hibernate cutoff, then charge uninterrupted to 100%, and let the BIOS battery learn cycle complete. After two cycles the health status clears and the OS reports accurate data.
Windows is showing 52Wh rated capacity in Device Manager but the battery spec says 50.82Wh — which figure is correct?
The 50.82Wh figure from the product data is the measured electrochemical capacity of the cell. The 52Wh reading in Device Manager comes from the EEPROM's factory-coded design capacity value, which manufacturers often round up slightly from the actual cell chemistry rating. This difference is normal and does not indicate a fault or a mismatch. The HP fuel gauge IC will track real charge delivered to the cell — not the EEPROM figure — after calibration cycles complete.
The Envy 17m fuel gauge is jumping from 60% to 15% without warning during normal use — what's causing it?
The fuel gauge IC on the Envy 17m uses a coulomb counter that was calibrated to the old cell's discharge curve. After a cell swap, that curve no longer matches, so the gauge makes large corrections mid-discharge when actual cell voltage diverges from its stored model. We confirmed this behaviour on the bench — it settles after two to three full discharge-and-recharge cycles. Discharge the laptop to hibernate cutoff each time and charge fully to 100% without interruption; by the third cycle the gauge tracks the actual cell voltage and the sudden drops stop.
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