HP Pavilion Battery Replacement: Find the Right Battery for Every Model
XiongYing Zeng
HP has shipped Pavilion laptops for over two decades, and the battery design has changed repeatedly — different voltages, different connectors, different physical shapes. This guide maps every major Pavilion series to its correct battery model, covers how to confirm your specific battery before ordering, and explains which upgrades are possible and which aren't. If you're staring at a dead Pavilion and just want to know which battery to buy, the compatibility table below is your starting point.
1. Why "Pavilion Battery" Isn't One Thing
Type "HP Pavilion battery" into a search bar and you'll get hundreds of results, many claiming to be "compatible with all HP Pavilion 15 models." Here's the problem: HP has used at least eight different battery designs across the Pavilion line in the last decade alone.
Here's a real example. These are all "HP Pavilion 15" laptops, each using a different battery:
| Pavilion Model | Battery Model | Voltage | Capacity |
|---|---|---|---|
| Pavilion 15-ab (2015) | KI04 / G6E88AA | 14.8V | 41Wh |
| Pavilion 15-bs (2017) | JC04 / 919700-850 | 14.8V | 41.6Wh |
| Pavilion 15-cs (2018) | HT03XL / L11119-855 | 11.55V | 41Wh |
| Pavilion 15-dk (2019) | PG03XL / L48495-005 | 11.55V | 52.5Wh |
| Pavilion 15-eg (2021) | HW03XL / L97300-005 | 11.55V | 41Wh |
| Pavilion x360 15-cr (2018) | LK03XL / L09280-855 | 11.55V | 52.5Wh |
Notice the voltage jump from 14.8V to 11.55V around 2018. If you try to install an 11.55V HT03XL in a 14.8V Pavilion 15-bs, the laptop won't power on. The physical connector might even fit, but the voltage mismatch stops everything.
In my experience, about half the "wrong battery" returns we see are Pavilion owners who ordered by laptop size and generation year — "Pavilion 15 battery", instead of the actual battery code. It's the most common mistake in this category, and it's an easy one to avoid.
2. How to Confirm Your Pavilion's Battery Model
You have three ways to get the right model number. Do at least two and make sure they match:
| Method | How | Best For |
|---|---|---|
| Read the battery label | Remove bottom cover, read the code printed on the battery pack (e.g., HT03XL, L11119-855) | 100% certainty — what's actually installed |
| Run Windows battery report | Open CMD as admin, run powercfg /batteryreport, open the HTML report, check "Installed batteries" |
No disassembly needed |
| HP PartSurfer by serial number | Go to partsurfer.hp.com, enter your Pavilion's serial number (on bottom label), check Battery category | Shows factory-original battery |
Detailed walkthrough with screenshots for all three methods, plus how to read the battery label correctly.
How to Find Your HP Battery Model Number →3. Pavilion Battery Compatibility Master Table
Find your Pavilion series in the left column — the "System Model" shown in msinfo32 or printed on the bottom label. Match it to the battery model in the center column.
| Pavilion Series (System Model) | Battery Model | HP Part Number | Voltage | Capacity |
|---|---|---|---|---|
| Pavilion 14-ce, 14-cf, 14-ck, 14-cm, 14-df, 14-dq | HT03XL | L11119-855, L11421-421 | 11.55V | 41.04Wh |
| Pavilion 15-cs, 15-cw, 15-da, 15-db, 15-dw, 15-dy | HT03XL | L11119-855 | 11.55V | 41.04Wh |
| Pavilion 17-by, 17-ca | HT03XL | L11119-855 | 11.55V | 41.04Wh |
| Pavilion 15-eg, 15-eh, 15t-eg, 15z-eh (2021+) | HW03XL | L97300-005, L96887-1D1 | 11.55V | 41.04Wh |
| Pavilion 17-cn, 17-cp, 17s-cu, 17t-cn, 17z-cp (2021+) | HW03XL | L97300-005 | 11.55V | 41.04Wh |
| Pavilion x360 14-cd, 14-dh, 14-dw, 14m-cd, 14m-dh | HT03XL | L11119-855 | 11.55V | 41.04Wh |
| Pavilion x360 15-cr, 15-cq, 15-dq, 15t-cr | LK03XL | L09280-855 | 11.55V | 52.5Wh |
| Pavilion x360 14-cr (2018–2019) | LK03XL | L09280-855 | 11.55V | 52.5Wh |
| Pavilion 15-dk (2019–2020 Gaming) | PG03XL | L48495-005 | 11.55V | 52.5Wh |
| Pavilion Gaming 15-cx, 15-cb | SR04XL | 917724-856 | 15.4V | 70.07Wh |
| Pavilion 15-bs, 15-bw, 17-bs | JC04 | 919700-850 | 14.8V | 41.6Wh |
| Pavilion 15-ab, 15-an, 17-g, 14-ab, 14t-ab | KI04 / K104 | G6E88AA, 756745-001 | 14.8V | 41Wh |
| Pavilion 15-ac, 14-ac, 14-af | HS04 | 807957-001 | 14.8V | 41Wh |
| Pavilion x2 10-n, 10-n100, 10-n200 (detachable) | DO02XL | — | 7.6V | 33Wh |
⚠️ Don't see your model? This table covers the most common Pavilion series. HP sometimes releases regional variants under slightly different model codes. When in doubt, open the laptop and read the battery label directly. No table beats the actual label.
4. The Most Common Pavilion Batteries Up Close
HT03XL — The Workhorse (2018–2021 Pavilion 14/15/17)
If you own a Pavilion from the 2018–2021 era, there's a high probability you need an HT03XL. This 3-cell, 41.04Wh battery at 11.55V shipped in more Pavilion configurations than any other model. It fits the vast majority of Pavilion 14-ce/cf, 15-cs/cw/da/db/dw/dy, and 17-by/ca series.
The HT03XL is also one of the most counterfeited battery models on the market. If you see one for $18, it's not a deal. The cells inside won't be Samsung or LG. They'll be unnamed recycled cells that might last six months on a good day.
HW03XL — The 2021+ Refresh
When HP refreshed the Pavilion line in 2021 (15-eg, 15-eh, 17-cn series), they redesigned the battery. The HW03XL also has 41.04Wh at 11.55V — similar specs to the HT03XL, but the physical shape, connector position, and screw layout are completely different. You cannot swap an HT03XL into an HW03XL slot or vice versa.
I've learned that the easiest way to tell HT03XL and HW03XL apart without reading the label is the connector position. On the HT03XL, the cable exits from the side edge. On the HW03XL, it exits from the face. If the connector isn't where you expect it to be, you've got the wrong battery.
LK03XL — The High-Capacity x360 Option
The LK03XL is a 52.5Wh battery at 11.55V, primarily found in Pavilion x360 15-inch convertibles. It's about 25% larger in capacity than the HT03XL, which translates to roughly an extra hour of runtime. If your Pavilion x360 shipped with an HT03XL and you have the physical space inside the chassis, you can usually upgrade to the LK03XL — the voltage and connector are the same.
5. Can You Upgrade to a Higher Capacity Battery?
Sometimes. Here are the rules:
| Upgrade Path | Possible? | What You Gain |
|---|---|---|
| HT03XL (41Wh) → LK03XL (52.5Wh) in Pavilion 15 | ✅ Yes, if chassis has space | ~1 extra hour of runtime |
| HT03XL (41Wh) → HW03XL (41Wh) | ❌ No, different physical design | N/A |
| JC04 (41.6Wh, 14.8V) → HT03XL (41Wh, 11.55V) | ❌ No, voltage mismatch | N/A |
| HW03XL (41.04Wh) → higher capacity HW03XL variant | ⚠️ Check dimensions, some 52.5Wh variants share the HW03XL connector but are physically larger | ~1 extra hour |
The golden rule: voltage and connector must match. If those two check out and the physical dimensions fit, higher capacity is always better. But never assume, always compare the product dimensions against your original battery before ordering an "upgrade."
The truth is, most Pavilion owners never explore the upgrade path because they don't know it exists. If your laptop has the physical room and the connector matches, going from 41Wh to 52.5Wh is one of the cheapest quality-of-life upgrades you can make — an extra hour of untethered use for about $10–$15 more. Just measure twice before you order.
6. What to Check Before You Order
Should you buy an original HP battery or a compatible replacement? Our comparison covers cost, lifespan, and real performance differences.
OEM vs. Aftermarket HP Batteries: Full Comparison →Frequently Asked Questions
What battery does my HP Pavilion use?
It depends on your specific Pavilion series. The most common battery for 2018–2021 Pavilion 14/15/17 models is the HT03XL (41Wh, 11.55V). For 2021+ Pavilion 15-eg and 17-cn series, it's the HW03XL (41Wh, 11.55V). For x360 15-inch convertibles, it's usually the LK03XL (52.5Wh). The best way to know for sure is to remove the bottom cover and read the battery model printed on the label, or run powercfg /batteryreport in Windows Command Prompt.
How do I find the battery model on my HP Pavilion?
Three methods: (1) Power off the laptop, remove the bottom cover, and read the code on the battery label, look for codes like HT03XL, LK03XL, or L11119-855. (2) Run powercfg /batteryreport in Windows Command Prompt (Admin), open the generated HTML file, and check the "Installed batteries" section. (3) Go to partsurfer.hp.com, enter your Pavilion's serial number, and check the Battery category for the factory part number.
Can I put a higher capacity battery in my HP Pavilion?
Sometimes. If the voltage and connector match and the physical dimensions fit inside your Pavilion's chassis, a higher Wh battery is safe and will give you longer runtime. Example: some Pavilion 15 models that shipped with a 41Wh HT03XL can accept a 52.5Wh LK03XL if there's physical space. However, you cannot upgrade across different voltage families (11.55V vs. 14.8V) or across physically incompatible designs (HT03XL vs. HW03XL). Always compare product dimensions before ordering an upgrade.
How much does an HP Pavilion battery replacement cost?
A quality aftermarket Pavilion battery typically costs $45–$65 for standard models (HT03XL, HW03XL, JC04) and $55–$80 for higher-capacity models (LK03XL, SR04XL). An OEM HP battery for Pavilion costs $70–$120 depending on the model. Installation at a repair shop adds $60–$120 in labor. DIY replacement requires only a Phillips screwdriver and takes about 15 minutes for most Pavilion models.
Are all HP Pavilion batteries the same?
No. There are at least eight different battery designs used across the Pavilion line, varying by series, generation year, and voltage. The key split is between pre-2018 models (14.8V batteries like KI04, JC04, HS04) and 2018+ models (11.55V batteries like HT03XL, LK03XL, HW03XL). Even within the same voltage family, connector positions and physical dimensions differ. A "Pavilion 15 battery" is not a single product, it's a category of products that are not interchangeable.
How long does an HP Pavilion battery last?
A new HP Pavilion battery typically lasts 2–4 hours of active use on a full charge, depending on screen brightness, workload, and battery capacity. Over its lifespan, a quality battery lasts 2–3 years or 300–500 charge cycles before runtime drops noticeably. Signs it's time to replace: runtime falls below 1 hour, the laptop shuts down at 20–40% indicated charge, or Windows reports "Consider replacing your battery."
References & Sources
- HP PartSurfer, Official HP parts database for verifying Pavilion battery part numbers by serial or product number
- HP Official Support, HP Pavilion service manuals, battery diagnostics, and model specifications
- Microsoft Docs, powercfg command-line options, Official documentation for the Windows battery report tool
Found your Pavilion battery model?
Browse HP Pavilion replacement batteries organized by model code, HT03XL, LK03XL, HW03XL, and more.
Every battery includes a 12-month replacement warranty and 60-day return window.
