LK03XL 916814-855 Battery for hp Envy x360 Convertible 17m-ae0xx 17-bw
Quick take
The LK03XL 916814-855 battery is a 3-cell Li-ion replacement rated at 11.55V and 55.8Wh, built for select HP Envy x360 convertible laptop configurations. It can be a practical way to extend the life of an older device, especially when your current battery no longer holds a charge. The main catch is compatibility: you must match the exact HP part number and the correct battery capacity/footprint for your model before buying.
Pros and cons
Pros
- Designed around the LK03XL / 916814-855 part number family, with listed compatibility across multiple Envy x360 variants.
- 55.8Wh (11.55V) 3-cell replacement spec for the intended configurations.
- Many buyers report strong “replacement fit” and smooth system startup after swapping.
- Includes built-in multi-protection features (over-current, over-voltage, short-circuit, over-temperature).
Cons
- Installation requires opening the laptop and handling lithium battery wiring carefully.
- Buyer-review evidence is mixed on long-term safety, and battery swelling can be dangerous if it occurs.
- Battery capacity matters, so a mismatch (for example, ordering the wrong Wh variant) can lead to poor fit or compatibility issues.
What buyers think
Buyer-review evidence points to a generally positive experience when the battery matches the laptop’s internal battery bay and the correct configuration. Multiple buyers mention that the replacement fits well and the laptop recognizes the battery successfully during boot. Buyers also commonly describe improved real-world runtime compared with heavily degraded batteries.
At the same time, the review history includes cautionary feedback about the seriousness of lithium-ion battery swelling. While this is not necessarily a frequent outcome you can assume for every unit, it is enough to treat battery replacement as a safety-critical repair: stop using the laptop if you notice abnormal heat, bulging, or physical changes to the battery pack.
Overall, the review evidence supports the idea that fit and correct variant selection drive the best outcomes, and that installation quality and battery safety monitoring matter after replacement.
Key specs and compatibility you should verify first
This battery is listed as a 11.55V 55.8Wh 3-cell Li-ion replacement for specific HP Envy x360 convertible models. It’s also associated with part numbers including LK03XL, LKO3XL, L09281-855, and 916814-855, along with several other compatible codes listed for Envy x360 configurations.
Check the part number and model family
To reduce the risk of ordering the wrong battery variant, confirm your current battery’s label or your laptop’s exact compatible configuration, then match it to the listed part numbers. This matters because Envy x360 models often exist in multiple battery capacities.
Confirm the capacity/footprint match
Even when the laptop series matches, battery size and connector fit can differ across Wh variants. Reviews also highlight that choosing the correct Wh model improves the odds of physical alignment and stable recognition at startup.
Performance and everyday usability
For buyers replacing an aging battery, the practical goal is usually better charge retention and more usable time between charges. The available review themes align with that expectation, with reports of noticeably improved runtime after installation compared with degraded battery behavior.
Because battery performance depends heavily on your original battery’s condition and your usage patterns, treat runtime expectations as approximate. Still, if your current battery is failing quickly or shows major degradation, this replacement is designed specifically for the compatible Envy x360 configurations above.
Installation realities (and what can affect results)
There’s no external charging compatibility to consider, this is an internal replacement. Plan on powering the laptop off completely, disconnecting power, removing the old battery, and carefully connecting the wiring and seating the new battery in the battery bay.
Follow careful handling guidance
Lithium battery swaps are not “maintenance-free” repairs. Use appropriate tools, avoid pinching wires, and do not force the battery into place. If you’re not comfortable opening the device, professional installation is often worth it.
Battery longevity habits
After installation, the listing recommends battery conditioning cycles and avoiding constant deep discharge, plus long-term storage guidance (storing the unused battery fully charged and recharging periodically). These habits can help you get better lifespan behavior out of a new pack.
Safety and longevity considerations
The battery is described as including multiple protection mechanisms (over-current, over-voltage, high voltage protection, short circuit, and over-temperature) intended to improve safety and stability. That said, lithium-ion battery failures can be serious.
Based on the included cautionary review experience, pay attention to physical warning signs. If the battery area becomes unusually hot, you notice bulging, or the laptop’s behavior seems abnormal after installation, stop using the device and seek service or replacement. Swollen lithium-ion batteries should not be left in a running laptop.
Who this battery is best for
- You have an HP Envy x360 convertible in the listed compatible families and you can match the exact part number (for example, LK03XL or 916814-855).
- Your current battery is degraded and you want an internal replacement option rather than replacing the laptop.
- You can handle DIY replacement carefully or you’re willing to have a technician install it.
Who should avoid it
- You’re not sure of compatibility (model series alone is not enough, confirm the exact battery part number and capacity).
- You need a guaranteed quick swap without opening the laptop, because this is an internal repair.
- You’re uncomfortable with lithium battery safety procedures. If you cannot follow careful handling steps, professional installation is the safer route.
Price and availability
This option is positioned as a lower-cost replacement compared with buying a new computer, with the product listing showing a current price and a higher list price reference. Availability is shown as in stock for the US market at the time of this writing.
Verdict
The LK03XL 916814-855 battery is a sensible choice if you’re repairing a compatible HP Envy x360 convertible and you can verify the exact battery part number and capacity. The strongest buyer signals center on fit and system recognition when the correct variant is selected. Just treat installation and post-replacement monitoring as important, since battery swelling is a serious safety issue in lithium-ion repairs.
FAQ
Is the LK03XL 916814-855 battery compatible with all HP Envy x360 models?
No. Compatibility depends on the exact configuration and battery variant. Confirm your laptop’s compatible battery part number (like LK03XL or 916814-855) and the correct capacity/footprint before ordering.
What are the main specifications of this battery?
It is listed as 11.55V and 55.8Wh, a 3-cell Li-ion replacement pack (with a rechargeable design and an internal multi-protection feature set).
Will this battery improve my battery life if my current pack is degraded?
When compatibility is correct, buyers report improved day-to-day runtime compared with heavily degraded batteries. Exact results vary based on usage and the condition of your previous battery.
Is installation difficult?
It requires opening the laptop and handling internal battery wiring and connectors. If you are not comfortable with laptop repairs, consider professional installation.
What should I do if I notice abnormal heat or battery swelling?
Stop using the laptop and seek service. Swelling or extreme heat are serious lithium-ion warning signs and should not be ignored.
How should I store the battery if I do not use it right away?
The listing recommends storing the unused battery fully charged and recharging it periodically (for example, about monthly) to help maintain healthier battery lifespan behavior.
Specifications
| Product Title | LK03XL 916814-855 Battery for hp Envy x360 Convertible 17m-ae0xx 17-bw 17m-ae111dx 15m-bp1xx 15m-cn0xxx 15-cn0xxx 15m-cp0xxx 15m-cn0012dx 15m-cn0011dx 15m-bq021dx 15m-bp112dx 916368-421 l09281-855 |
|---|---|
| Category | Electronics > Computers & Accessories > Laptop Accessories > Batteries |
| Brand | Fancy Buying |
| Manufacturer | Dongguan Lewe Electronics Co., Ltd |
| Model Number | LK03XL |
| Number of Batteries | 1 Nonstandard Battery batteries required. |
| Warranty Description | 1 year manufacturer |
| Battery Capacity | 55.8 Milliamp Hours |
| Reusability | Rechargeable |
| Compatible Phone Models | LK03XL LKO3XL L09281-855 916814-855 LK03048XL LK03055XL 916368-421 916368-541 HSTNN-LB7U HSTNN-LB8J HSTNN-UB71 HSTNN-UB7I L08855-856 L08934-1B1 L08934-2C1 L09049-1B1 L09280-855 L09911-141 L09911-421 TPN-W127 TPN-W128 TPN-I129 |
| Unit Count | 1.0 Count |
| Battery Weight | 0.49 Pounds |
| Antenna Location | Laptop |
| Battery Cell Type | Lithium Polymer |
| Battery Cell Composition | Lithium Polymer |
| Recommended Uses For Product | Laptop |
Available variants
Size
- 7.56*4.06*0.2inch
- 11.23*2.05*0.79inch
- 13.62*2.63*0.2inch
- 13.5*3.34*0.27inch
- 9.83*4.12*0.25inch
- 9.81*4.11*0.33inch
- 10.3*1.56*0.85inch
- 11.13*2.15*0.77inch
- 9.33*3.74*0.24inch
- 10.9*3*0.24inch
- 7.87*3.93*0.27inch
- 9.7*3.7*0.24inch
- 8.39*3.5*0.24inch
- 9.45*4.09*0.28inch
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