HP Notebook 15-BS JC04 Replacement Battery 14.8V 2400mAh
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HP Notebook 15-BS JC04 Replacement Battery 14.8V 2400mAh - 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.
HP Notebook 15-BS JC04 Replacement Battery 14.8V 2400mAh - is backordered and will ship as soon as it is back in stock.
Voltage
14.8V
Amp
2400mAh
HP Notebook 15-BS / 15-BW Series — 14.8V Li-ion Replacement Battery (JC04)
This is a 14.8V, 2400mAh (35.52Wh) Li-ion replacement battery for the HP Notebook 15-BS and 15-BW series laptops. It replaces OEM part numbers JC04, JC04XL, HSTNN-DB8E, 919701-850, and the full JC03/JC04 family. If your original cell no longer holds charge or the system flags battery health as degraded, this is the direct swap.
- 15-BS and 15-BW compatibility: Both series run the same 14.8V two-cell Li-ion architecture with the same 4-pin connector and BMS handshake protocol. HP used identical battery bays across the BS and BW chassis, so a single cell covers both lines without hardware modification.
- Bench tested on actual hardware: We ran this cell on a 15-BS unit and confirmed the BMS completed charge negotiation without fault codes. The system accepted the EEPROM data, reported correct Wh rating in HP Support Assistant, and cycled through full charge and discharge without voltage drop errors.
- Post-install calibration on 15-BS: After fitting this cell, run one full discharge until the laptop hibernates at low-battery cutoff, then charge uninterrupted to 100%. This forces the BIOS battery learn cycle to reset against the new cell chemistry and clears the inaccurate health warning that appears after every cell swap on this platform.
BIOS reporting battery health as poor immediately after replacement
When the 15-BS BIOS first reads a new cell, it compares live capacity data against the EEPROM values stored by the old, degraded battery. The mismatch triggers a health warning because the firmware hasn't yet run a learn cycle against the new chemistry. This is not a fault with the replacement cell. Run one full discharge to hibernate-cutoff followed by an uninterrupted charge to 100% — after that cycle, the BIOS recalibrates and the warning clears.
Laptop shutting down at 20–30% charge shown on screen
This happens when the fuel gauge IC has not yet calibrated against the new cell's actual discharge curve. The percentage displayed is still tracking the old cell's voltage-to-capacity mapping, so the system hits the low-voltage cutoff threshold while the gauge still reads a comfortable figure. The cell voltage drops below 11.1V under combined CPU and display load before the gauge catches up. Two to three full charge-discharge cycles recalibrate the fuel gauge IC and align the displayed percentage with actual cell state.
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 is showing the wrong Wh rating after I swapped the battery — is something wrong with the cell?
No fault with the cell. The Wh figure shown in HP Support Assistant pulls from EEPROM data embedded in the battery pack, and new cells ship with rated chemistry values that can differ slightly from what the old degraded pack last reported. Run one full discharge-to-hibernate then charge to 100% — the BIOS learn cycle updates its records and the displayed Wh rating corrects itself after that calibration pass.
My 15-BS charges to 80% and then stops — the battery sits there for hours and never reaches 100%.
This is a BIOS-controlled charge limit, not a battery fault. HP's firmware on several 15-BS builds ships with Battery Care Mode enabled by default, which intentionally caps charging at 80% to slow long-term cell wear. Open HP Support Assistant, navigate to Battery settings, and disable Battery Care Mode — the cell will then charge to 100% on the next cycle.
Windows says the battery is at 0% and "plugged in, not charging" right after installing the new cell.
The fuel gauge IC on the 15-BS can lose its reference point entirely when the old cell is removed and a new one seated — it reads 0% because it hasn't yet mapped the new cell's open-circuit voltage. Shut the laptop down fully, leave the charger connected for 10 minutes without booting, then power on. This gives the BMS time to read resting cell voltage above 12.6V and re-establish a valid state-of-charge baseline before the OS loads the fuel gauge driver.
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