The HP Victus 15 is a budget gaming laptop with a battery problem that is not really a battery problem. It is an identification problem. Ask “what battery does the Victus 15 use” and the honest answer is: it depends on which of at least four distinct internal configurations HP shipped under the same product name. The 15-fa, 15-fb, 15-fa1000, 15-fb1000, and 15-fb3000 series do not all use the same pack. Capacities range from 41Wh to 70.91Wh, cell counts range from 3 to 6, and the connector and mounting layout differ enough that buying the wrong part is a real risk.
This guide identifies the battery used by each Victus 15 variant, explains why the capacities diverge so widely, provides measured runtime data, and covers replacement sourcing and calibration.
1. The Battery Identification Matrix
Across the Victus 15 line, three primary battery part numbers appear in replacement listings and service documentation: WK04XL, SD03XL, and SD06XL. Their specifications are not interchangeable.
| Battery Part Number | Voltage | Capacity | Cell Count | Typical Victus 15 Fitment |
|---|---|---|---|---|
| WK04XL | 15.4V | 70Wh / 70.07Wh | 4-cell Li-polymer | Victus 15-fa, 15-fb, 15T-fa, 15Z-fb; shares platform with Omen 16 |
| SD03XL | 11.52V | 52.2Wh – 52.5Wh | 3-cell Li-polymer | Victus 15-fa, 15-fa1000, 15-fb, 15-fb1000 |
| SD06XL | 11.55V | 70.91Wh | 6-cell Li-ion | Victus 15-fa000 series, shared with Omen 15-EK / 15-EN |
The WK04XL is the most widely referenced pack for the current Victus 15 generation. Replacement listings for the WK04XL specify 15.4V, 70Wh, 4323mAh, 4-cell and list fitment across the Victus 15-FA, 15-FB, 15T-FA, and 15Z-FB series, alongside Omen 16 models that share the same battery bay. North American retail listings for the same part identify it as 70.07Wh and confirm compatibility with the Victus 15-FA and 15-FB families.
The SD03XL is the lower-capacity option. Replacement listings specify 11.52V, 52.2Wh and fit the Victus 15-FA, 15-FA1000, 15-FB, and 15-FB1000 series. Retail battery listings for the same part give the capacity as 52.5Wh and price it at approximately $61.78. The small variance between 52.2Wh and 52.5Wh reflects measurement tolerance across listings rather than a different physical pack.
The SD06XL is the highest-capacity variant, specified at 11.55V, 70.91Wh, 6-cell, and fitted to the Victus 15-FA000 series as well as Omen 15-EK and 15-EN models. The 6-cell architecture and 11.55V nominal voltage distinguish it electrically from the 4-cell, 15.4V WK04XL.
There are also lower-capacity configurations in the wild. A 3-cell 52.5Wh pack is documented for the Victus 15-fb1000AX, and replacement-parts listings for the same series show both a 41Wh original and a 52.5Wh original option. Compatibility listings for the 15-fb0052ax specify a 63Wh, 4150mAh, 15.2V, 4-cell replacement, which does not match any of the three primary part numbers exactly and illustrates how third-party listings can introduce additional capacity figures.
The practical conclusion is that “Victus 15” does not identify a battery. The sub-model and, ideally, the battery label inside the chassis do.
2. Why the Capacities Diverge: The Configuration Logic
HP does not publish a single battery specification for the Victus 15 because the platform was designed to hit multiple price points with the same chassis. The battery bay can accept a 3-cell, 4-cell, or 6-cell pack, and HP has shipped all three depending on the SKU’s position in the market.
The SD03XL / 52.2Wh class corresponds to entry configurations where cost and weight are prioritised. A 3-cell pack is lighter and cheaper than a 4-cell or 6-cell alternative, and it is adequate for the light workloads that budget gaming laptop buyers often perform.
The WK04XL / 70Wh class is the mid-tier and most common current configuration. It pairs a 4-cell architecture with 15.4V nominal voltage, delivering higher energy density without the physical bulk of a 6-cell pack. Its shared fitment with the Omen 16 means HP can amortise the pack across two product lines, which improves supply economics.
The SD06XL / 70.91Wh class is the highest-capacity option and uses a 6-cell architecture at 11.55V. It appears most often on the earlier 15-fa000 series and on Omen 15 models that share the battery bay. The 6-cell design provides more parallel capacity but adds weight and occupies more vertical space in the chassis.
The 41Wh and 52.5Wh options documented for the 15-fb1000 series represent the low end of the range, typically paired with lower-wattage GPUs and less demanding processor configurations. A 41Wh pack in a 15.6-inch gaming laptop is a minimal-capacity configuration, and it is the least suitable for any workload involving sustained GPU activity.
3. Measured Battery Life: What the Capacity Actually Delivers
3.1 Light Productivity and Video Playback
The Victus 15 can deliver genuinely strong runtime in light workloads, but the figure depends heavily on the battery fitted. Testing of a 2025 model with an AMD Ryzen 7 8845HS, an RTX 4050, and the higher-capacity pack recorded 12 hours 13 minutes on a standardised battery rundown test. Independent testing recorded 12 hours of light web browsing and 8.5 hours of 4K video playback on a Victus 15.6 configuration.
Specification listings for a 15-fb3000 model with a 70Wh 4-cell battery rate it for up to 12 hours of battery life. These figures are consistent with the 70Wh class delivering all-day endurance in non-gaming use.
3.2 Gaming and Sustained GPU Load
The same laptops collapse under gaming load. User reports for a Victus 15 with an i5-13420H and RTX 3050 describe 1.5 to 2 hours of battery life per full cycle. Specification listings for an i7-12650H / RTX 4050 configuration rate 5 to 6 hours for casual use but explicitly note “much less for gaming”. For a 70Wh model, a realistic gaming estimate is 1.5 to 3 hours depending on title and settings.
A 52.5Wh 3-cell configuration, such as the 15-fb1000AX with a Ryzen 5 7535HS and RTX 2050, delivers proportionally less in every scenario. The 41Wh configuration is lower still and is not suited to any sustained GPU workload away from AC power.
3.3 A Runtime Reference by Battery Class
| Battery Class | Light Productivity / Web | Video Playback | Gaming |
|---|---|---|---|
| 70Wh / 70.91Wh (WK04XL, SD06XL) | ~10–12 hours | ~8.5 hours (4K) | ~1.5–3 hours |
| 52.2Wh / 52.5Wh (SD03XL, 3-cell) | ~6–8 hours | ~5–6 hours | ~1–2 hours |
| 41Wh (entry configuration) | ~4–6 hours | ~3–4 hours | Under 1.5 hours |
| 63Wh (third-party equivalent) | ~8–10 hours | ~6–7 hours | ~1.5–2.5 hours |
The 12-hour figures apply to the 70Wh class in light use. They do not transfer to the 52.2Wh or 41Wh configurations, and they do not apply to gaming under any configuration.
4. Replacement Sourcing: Part Numbers, Prices, and Compatibility
4.1 Confirming the Correct Part
The safest method is to open the bottom cover and read the label on the existing battery. HP PartSurfer, accessible with the laptop’s serial number, provides a definitive compatibility check. The model number alone is not sufficient: the same 15-fb series has shipped with 41Wh, 52.5Wh, 63Wh, and 70Wh packs depending on the exact SKU and region.
4.2 Replacement Pricing
Third-party replacement batteries for the Victus 15 are inexpensive relative to the laptop’s purchase price. Representative global pricing for the main part numbers:
| Part Number | Capacity | Typical Replacement Price (USD Equivalent) |
|---|---|---|
| WK04XL | 70Wh / 70.07Wh | $69 – $81 |
| SD03XL | 52.2Wh / 52.5Wh | $54 – $62 |
| SD06XL | 70.91Wh | Varies by region; typically $60 – $90 |
A WK04XL replacement from a North American retailer is listed at approximately $80.99 for the 70.07Wh variant. A SD03XL replacement is listed at $61.78 for the 52.5Wh variant. The SD03XL-compatible CS-HPV152NB is priced at $53.95. Global listings for the WK04XL show approximately $69.20 equivalent.
For context, authorised service centres in Singapore quote HP laptop battery replacement at S$108 to S$186 depending on model, and service centres in Slovakia quote battery replacement from €50 for a Victus. Russian service centres list HP Victus 15 battery replacement from 700 rubles. These figures vary enormously by region and labour cost, but they establish the professional-service range: roughly 2–3× the DIY part cost in higher-labour-cost markets, and closer to 1.5× in lower-labour-cost markets.
5. What to Check Before Buying a Replacement
Three specifications must match the original pack, and a fourth is a quality signal.
Voltage is the first constraint. The WK04XL operates at 15.4V, the SD03XL at 11.52V, and the SD06XL at 11.55V. These are not interchangeable. A 15.4V pack and an 11.52V pack have different cell configurations and different charging profiles, and fitting the wrong voltage risks damage to the battery management system.
Capacity in Wh should match or exceed the original. A lower-capacity replacement will reduce runtime, and a substantially higher-capacity pack may not fit the chassis bay if the cell count differs.
Connector and mounting layout must match the specific Victus 15 sub-model. The WK04XL and SD03XL are not physically interchangeable even though both fit “Victus 15” laptops, because the connector position and screw hole pattern differ.
Cell quality and warranty are the fourth consideration. A replacement listing that specifies 4-cell Li-polymer construction and a 6-month warranty is a more reliable indicator of quality than an unlabelled marketplace listing. For a budget gaming laptop, the difference between a $54 pack and an $81 pack is small relative to the inconvenience of a premature failure.
6. Calibration and Long-Term Health
After installing a replacement, charge to 100% and discharge to the low-battery warning before returning to normal use. This allows the battery management system to learn the new pack’s full and empty points. Without it, the reported percentage may be inaccurate for the first few days.
Run powercfg /batteryreport in an elevated Command Prompt after calibration to compare design capacity with the new pack’s full-charge capacity. A replacement reporting a full-charge figure close to its rated Wh is behaving correctly. A substantially lower reading suggests a low-quality cell, an incorrect part, or a calibration error.
For a Victus 15 that spends most of its life on a desk, HP’s battery health management settings in the BIOS can limit charging to extend pack life. The 70Wh class benefits most from an 80% charge limit because it has enough capacity to spare; the 41Wh and 52.2Wh configurations have less headroom and may need full charging for acceptable runtime.
Conclusion: Identify the Sub-Model Before You Identify the Battery
The HP Victus 15 uses one of at least three primary battery part numbers—WK04XL, SD03XL, or SD06XL—with capacities spanning 41Wh to 70.91Wh and cell counts spanning 3 to 6. The 70Wh WK04XL is the most common current configuration and the one behind the 12-hour benchmark results. The 52.2Wh SD03XL is the lower-capacity 3-cell option. The 70.91Wh SD06XL is the 6-cell variant shared with Omen 15 models.
None of these figures mean anything until the sub-model is confirmed. A “Victus 15” with a 41Wh pack will not deliver the runtime of a 70Wh model, and a 52.2Wh replacement will not fit a chassis designed for the WK04XL. The battery label inside the laptop and the HP PartSurfer lookup are the only reliable identification methods. For a laptop line that shipped the same name with four different energy envelopes, that extra step is not optional.
Battery part numbers and capacities vary by exact model, region, and configuration. Always verify the correct part using the laptop’s serial number and the label on the existing battery before purchase. Prices cited are indicative global retail and service figures as of October 2026. Lithium-ion batteries require disposal through a certified recycling facility.