HT03XL HP 250 G7 Replacement Battery 11.55V 3550mAh
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HT03XL HP 250 G7 Replacement Battery 11.55V 3550mAh - 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.
HT03XL HP 250 G7 Replacement Battery 11.55V 3550mAh - is backordered and will ship as soon as it is back in stock.
Voltage
11.55V
Amp
3550mAh
HP 250 G7 / 255 G7 — 11.55V Li-Polymer Replacement Battery (HT03XL)
This is an 11.55V, 3550mAh (41Wh) Li-Polymer replacement battery for the HP 250 G7 and 255 G7 notebooks. It also fits the HP 15-CS and 17-BY series, along with over 270 additional HP notebook models sharing the same HT03XL platform. Cross-reference OEM part numbers include L11119-855, HSTNN-LB8M, and TPN-I130 through TPN-I134 before ordering.
- 250 G7 / 255 G7 platform compatibility: These models share the same three-cell Li-Polymer pack format, connector pinout, and BMS handshake protocol. The 11.55V nominal rail is dictated by the HP charging IC on this platform — swapping to a different voltage pack will trip the controller and prevent charging entirely.
- Bench tested on actual hardware: We ran this cell through the full HP charge cycle on a 250 G7 unit. The BMS negotiated correctly with the EC firmware, charge current stepped down normally at the 90% threshold, and the pack reached full charge without fault codes.
- Post-install discharge cycle on the 250 G7: After fitting this battery, run the laptop on battery only until it hibernates at low-charge cutoff, then charge uninterrupted to 100%. This forces the BIOS battery learn cycle to reset against the new cell and clears the inaccurate health warning that appears in HP Support Assistant after every cell swap.
BIOS reporting poor battery health immediately after fitting the HT03XL
HP's EC firmware stores historical charge data from the previous cell in EEPROM. When a new pack is installed, the BIOS compares actual charge acceptance against that stale data and flags the battery as degraded before any real measurement has occurred. This is not a fault with the replacement cell. Run one full discharge-to-hibernate followed by an uninterrupted charge to 100% — this overwrites the EEPROM baseline and the health warning clears on the next boot.
HP 250 G7 shutting down at 20–30% battery shown on screen
This happens when the fuel gauge IC has not yet calibrated against the new cell's actual voltage curve. The gauge maps a voltage reading to a percentage using the old cell's profile — the new cell hits a voltage cliff at a different point, so the laptop loses power well before the display reads zero. It is not a defective battery. Run two to three full discharge and charge cycles without interrupting them, and the fuel gauge IC re-learns the correct curve. After calibration, shutdown should not occur above 5% remaining.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: HP
- 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
HP Support Assistant is showing the new HT03XL battery as "Unknown" with 0% health — is the cell dead?
It is not dead. HP's BIOS pulls health data from EEPROM written by the original cell, and that data does not match a fresh pack. Run one full discharge to hibernate-cutoff, then charge uninterrupted to 100% without using the laptop. This forces a battery learn cycle and rewrites the EEPROM baseline — Support Assistant should show a normal health reading within one to two cycles after that.
The 250 G7 shows 41Wh in system info but Windows Device Manager is reporting a different Wh figure — which is correct?
The 41Wh figure in the product data reflects the actual cell chemistry. The figure Windows reports comes from the EEPROM embedded in the battery pack, which stores the rated specification from the original HP cell — not a live measurement. A mismatch of a few Wh between EEPROM-reported and actual capacity is normal after a cell swap and does not indicate a fault. The discrepancy typically self-corrects after the fuel gauge IC completes two to three calibration cycles.
The replacement battery stops charging at 80% and will not go higher — is this a faulty cell?
This is almost always a BIOS-controlled charge limit, not a battery fault. HP notebooks include a Battery Health Manager setting in the BIOS that caps charging at 80% to reduce long-term cell stress — it ships enabled on some units. Restart the laptop, enter BIOS setup (F10 at the HP logo), navigate to Configuration, then Battery Health Manager, and set it to "Let HP manage my battery charging" or "Full charge." Save and exit — the battery will charge to 100% on the next cycle.
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