HP Laptop Battery Replacement Guide — EliteBook, ProBook & OMEN

HP laptop battery replacement varies by product line. Business-class EliteBooks and ProBooks feature accessible internal batteries with simple bottom panel removal. OMEN gaming laptops use larger-capacity glued batteries requiring more care during removal. HP’s battery part number system is straightforward, making identification easy. This guide covers HP battery part numbers, product-line differences, known swelling issues on some models, and third-party alternatives.

Battery Types by HP Series

HP’s battery lineup spans budget (Pavilion) to premium (EliteBook) and gaming (OMEN). Most modern HP batteries are lithium-ion with capacities ranging from 40Wh (ultrabooks) to 84Wh (gaming). EliteBooks are typically the most accessible for DIY replacement.

How to Find Your Compatible Battery

HP batteries are identified by simple part numbers (e.g., “RE03XL”, “CC03XL”). Every HP battery is labelled with a part number on the cell.

Step 1: Locate your current battery part number. Power down completely. Remove the bottom case (typically 6–12 Phillips screws). Your battery will be visible and labelled with a part number (e.g., “RE03XL”). Write this down.

Step 2: Search on Amazon UK. Search your part number on Amazon UK. You’ll find specifications (voltage, capacity, compatible models) and customer reviews.

Step 3: Check HP QuickSpecs. Visit HP’s support site and search “HP [Model] QuickSpecs PDF”. QuickSpecs documents list all approved battery options and part numbers for your specific model.

Step 4: Verify voltage compatibility. Always confirm that the voltage (11.55V, 14.8V, 15.36V) matches your original battery exactly. Mixing voltages causes charging failures.

HP Battery Swelling Issue (2019–2021 Models)

A known issue affects some HP models from 2019–2021: battery swelling (the battery visibly puffs up, warping the bottom case). This is a manufacturing defect in certain battery batches, not user error. If your HP battery is swollen:

Do not attempt DIY replacement. A swollen battery is a potential fire/explosion hazard. A swollen battery inside a closed case can overheat during removal.

Contact HP Support immediately. If your HP is still under warranty (within 1–2 years), HP will typically replace the battery and bottom case for free due to the defect. Provide your serial number and explain the swelling issue.

If out of warranty: You can purchase a replacement battery and have a professional technician (Apple Store equivalent for HP) handle the removal. The risk of fire makes professional handling safer than DIY for swollen batteries.

Affected models: Primarily EliteBook 745/755 G6, ProBook 445/455 G6, and some Pavilion and OMEN models from 2019–2021. If your battery is swollen, check HP’s support forums or contact HP Support to confirm your model is covered.

OEM vs Third-Party HP Batteries

HP OEM batteries are genuine parts from HP. Third-party batteries are compatible alternatives from other manufacturers.

OEM HP batteries: Most reliable, 1-year warranty from HP, £60–£140 depending on model. Available through HP.com and authorized retailers.

Third-party batteries: 30–50% cheaper (£30–£80), 1–2 year warranty, generally reliable. Available on Amazon UK. Look for batteries with 4+ stars and 100+ reviews. Avoid suspiciously cheap batteries (under £20) from unknown sellers.

Recommendation: Third-party batteries from Amazon UK are safe for most HP models. Browse HP replacement batteries on Amazon UK. Always verify the part number matches your original battery.

HP Battery Replacement Difficulty

Most HP batteries are accessible. Business-class EliteBooks are straightforward; gaming OMEN laptops may require heating due to adhesive.

EliteBook / ProBook: Easy. Remove bottom case (6–12 screws), disconnect battery connector (single barrel plug or ribbon cable), unscrew bracket (2–4 screws), slide out battery. Takes 5–15 minutes. No special tools required beyond a Phillips screwdriver.

Pavilion Consumer: Easy to medium. Most use bezel clips or bottom panel access. Some budget models may have light adhesive. Takes 10–20 minutes. Check your service manual beforehand.

OMEN Gaming: Medium. OMEN batteries are often glued to the bottom case for thermal management and space optimization. Requires careful heating and prying to avoid damaging the case. Takes 20–30 minutes. You’ll need a heat gun, plastic spudgers, and isopropyl alcohol. New adhesive strips are required for reassembly.

HP’s QuickSpecs document often links to the service manual PDF. Search “HP [Model] Service Manual PDF” online for step-by-step guidance.

Battery Replacement Steps (EliteBook Example)

Step 1: Power down and disconnect. Shut down completely. Unplug the charger and wait 5 minutes.

Step 2: Remove the bottom case. Locate all bottom panel screws (typically 6–12). Remove them and keep organized. Slide or unclip the panel.

Step 3: Disconnect the battery connector. Locate the battery (usually near the centre of the base). You’ll see a barrel-style connector or ribbon cable. Gently pull it straight out.

Step 4: Unscrew the battery bracket. Most HP batteries are held with 2–4 screws in a plastic bracket. Remove these screws.

Step 5: Remove the old battery. Slide the battery toward the connector edge and lift it out of the bay.

Step 6: Install the new battery. Align the new battery in the bay and slide it into place. Screw the bracket back in.

Step 7: Reconnect the connector. Gently push the connector back into the battery’s charging port. You’ll feel a soft click.

Step 8: Test power-on. Reconnect the charger, power on, and verify the battery is recognized. Check Settings → System to confirm the new battery’s capacity.

Step 9: Reassemble. Replace the bottom case and all screws. Power cycle once more.

Frequently Asked Questions

Can I upgrade to a higher-capacity HP battery?

Only if your model offers higher-capacity options. Check HP’s QuickSpecs document for your exact model—it lists all battery capacity choices. For example, if your model is offered with both 52Wh and 84Wh batteries, you can upgrade to 84Wh. However, voltage must match exactly (14.8V = 14.8V).

What does the “HP battery swelling” issue mean?

In 2019–2021, some HP models had defective battery batches that swelled (puffed up), warping the bottom case. This is a manufacturing defect, not user error. If your HP battery is visibly swollen, contact HP Support—they’ll typically replace it for free under warranty. Do not attempt DIY removal of a swollen battery.

Is HP battery replacement warranty-covered?

No, DIY battery replacement voids the manufacturer warranty. However, if your battery fails prematurely (within 1 year) or swells due to manufacturing defect, HP’s warranty may cover replacement. Contact HP Support. Out-of-warranty replacements cost £60–£140 through HP or £30–£80 through third-party sellers.

How long does an HP battery last?

Most HP lithium-ion batteries degrade to ~80% capacity after 300–500 charge cycles (roughly 1–2 years of daily use). They typically remain usable for 3–5 years. Replace when capacity drops to 60% or runtime drops below 1–2 hours of use.

Where can I buy HP replacement batteries?

Amazon UK has a wide selection of HP-compatible batteries. Verify the part number matches your original battery. Budget £30–£80 for third-party batteries, £60–£140 for OEM HP batteries.

Recommended Products

These are the products we recommend based on this guide. All links go to Amazon UK where you can check current prices and availability.

Prices and availability may vary. As an Amazon Associate, we earn from qualifying purchases.

Related Guides

• Battery Replacement Hub
• Third Party Laptop Battery Safe
• Find Compatible Laptop Battery
• Dynabook Laptop Upgrades
• Huawei Laptop Upgrades