If you’re planning an HP battery replacement, the safest way to choose the right pack is to match the
battery part number and voltage exactly, then confirm capacity (Wh), connector and fit. This guide shows you the quick checks and the deeper details—so you buy once and get it right.
The 2-minute fast check
- Find the part number (P/N) on your current battery (examples: HT03XL, LR03XL, HSTNN-UB7J, etc.). If it’s an internal battery, see the “model mapping” section below first.
- Match voltage (V) exactly to your label. Do not mix different voltages.
- Capacity (Wh) can be equal or higher if the pack is the same voltage, connector and physical shape.
- Buy from a seller with clear specs, a 12-month warranty, and an easy return policy.
Ready to compare? See compatible HP batteries
How to find the HP battery part number
The part number is the most reliable key for an HP battery replacement.
- On the battery label: Look for a short code like HT03XL / LRxxXL or an HSTNN-xxxxx identifier.
- On the laptop shell: Flip the laptop. Note the Product Number (SKU) and exact model (e.g., 15-dw0xxx). This helps cross-reference if you can’t open the case yet.
- Documents & order history: If a shop previously replaced your battery, the invoice might list the P/N.
Tip: Part number beats “series names”. Two different batteries can both claim support for “Pavilion 15”, but only the correct P/N will fit and charge correctly.
Match the essential specs (voltage, Wh, connector, fit)
| Spec | What to check | Why it matters |
|---|---|---|
| Voltage (V) | Must match your label (e.g., 11.4V / 7.6V / 15.4V) | Safety & electronics. Using the wrong voltage is not supported. |
| Capacity (Wh) | Equal or higher Wh is fine if voltage/fit match | More Wh ≈ longer runtime; higher Wh may add a few grams. |
| Connector | Same plug and pin layout; no bent pins | Ensures the board can charge/read the pack. |
| Form factor | Screw holes and outline match your original | Correct mechanical fit; no pressure on the motherboard. |
| Series/model | Pavilion, Envy, Omen, EliteBook, ProBook, Spectre, ZBook | Some series use multiple batteries—verify with the P/N. |
Use model mapping (when you can’t open the laptop)
If you’re not ready to open the case, you can still start an HP battery replacement search:
- Find your exact model/SKU: On the underside label or in Windows System Information (look for System SKU/BaseBoard).
- Cross-reference the SKU with a trusted battery catalogue or retailer listings to see which P/Ns fit your exact model.
- Before ordering, compare photos/specs of the candidate battery with your model’s service manual or trusted teardown images.
Browse by HP model here: HP battery category
Can I buy a higher-capacity battery?
Often, yes—if the higher-capacity pack has the same voltage, connector and chassis fit as the original. Many HP families offer multiple Wh options using the same footprint. When in doubt, prioritise the exact part number first; treat capacity as a secondary choice.
Common pitfalls to avoid
- Guessing by “series name” only: Pavilion/Envy/Omen lines may have several distinct batteries—always confirm the P/N.
- Voltage mismatch: Even small differences can signal a different cell configuration. Match your label exactly.
- Non-matching connector or screw pattern: If photos don’t match, don’t buy.
- Ultra-cheap, no-spec listings: Look for clear voltage/Wh, real photos, and a 12-month warranty.
- Swollen battery reuse: Never reinstall a puffy pack; recycle it safely.
After your HP battery replacement: quick setup
- Power up on AC and confirm Windows shows charging.
- Let it reach 100% once without heavy load.
- Generate a battery health report with
powercfg /batteryreport(Windows). - If available on your model, set Battery Health/Adaptive Charging in BIOS to reduce wear while plugged in.
FAQ
Is OEM required for an HP battery replacement?
Not strictly. A reputable third-party pack that matches P/N, voltage, connector and fit can perform very well. Prioritise clear specs and warranty.
Will a higher Wh battery damage my laptop?
No—capacity (Wh) doesn’t force extra power into the system. The laptop draws what it needs. Just ensure voltage, connector and fit are the same.
Do I need to “calibrate” a new battery?
Modern packs don’t need old-style deep cycles. A full charge to 100% once, then normal use, is enough. Avoid prolonged heat and 100% storage.
Where can I quickly find compatible options?
Start here and filter by model/part number: HP battery category.