Welcome to our store. Your trusted source for batteries and power solutions. Learn more

For support or quotes: sales@batteryweb.com
WELCOME5
BatteryWeb

HP EliteBook 820 Replacement Battery F6B38PA 11.1V

Up to 20% off
New arrival
From $65.99 USD $81.99
Shipping calculated at checkout.
Fits HP EliteBook 820, 820 G1, 820 G2 and replaces OEM part F6B38PA.
11.1V, 4140mAh lithium-polymer cell delivers 45.95Wh to restore full work sessions.
Connector slides into the battery bay slot; locking tab secures with a single catch.
We bench-tested this cell against F6B38PA originals — BMS accepted full charge cycle without fault codes or voltage sag under sustained CPU load.
After installation, run one complete discharge to hibernation cutoff, then charge uninterrupted to 100% — this resets the BIOS battery learn cycle and clears the inaccurate health warnings that appear after every cell swap on EliteBook units.
Delivery time

This product ships directly from our Manufacturer's Warehouse and is usually delivered within 7 – 10 business days to your doorstep.

Discount: As a thank you for your patience, enjoy 5% off on your order
WECARE5

Please Confirm Delivery Timeline

Fresh Battery, Worth the Wait

To provide the highest-quality replacement battery, we ship this battery directly from the manufacturer rather than from aging warehouse inventory. This means delivery may take a little longer, but it helps ensure you receive a fresh battery with better performance, a longer lifespan, and greater reliability.

Estimated delivery: 7–10 business days
4.8
★★★★★
★★★★★
Average Customer Rating
By continuing with your purchase, you acknowledge and agree to the estimated 7–10 business day delivery timeframe.
Visa Mastercard American Express PayPal Apple Pay Google Pay Shop Pay Discover Klarna Afterpay Stripe
✦

Check that your old battery model number and device model to match our description. This makes sure they work together.

✦

We ship your order same day if you buy it before 4 PM EST.

Warranty

Let customers speak for us

from 12 reviews

I'm writing this review to express my deep gratitude and appreciation for the quality of services provided to me by the BatteryWeb service team. I visited BatteryWeb to purchase a replacement battery for my Remington R9 razor. The staff was very responsive and I was really impressed with their willingness to help me and make the purchasing process as quick as possible. In particular I greatly appreciate the work of staff member Shane who was friendly and helpful.
In conclusion, I believe that BatteryWeb has excellent service staff who make their customers feel honored and valued.
I wish you all the best.
Sincerely,
Michael

Michael Talianker
BatteryWeb

this battery was just what I needed.

Robert Jones
BatteryWeb

Product is exactly as described and arrived quickly

Robert Jones
Rocket ES4-12 Compatible Replacement Battery

Great deal for the money.

Linda M.
BatteryWeb

It took a bit longer than expected, likely due to the holiday season, but that was understandable. So far, the battery seems to be working well!

Linda M.
MGE UPS Systems Pulsar EX 1500RT Compatible Replacement Battery By Bright Way

Excellent substitute for the original, appearing to be the perfect replacement.

Alberto J.
APC SMART-UPS RT SURTA3000RMXL3U UPS High Performance Replacement Battery Set

It was what i was looking for. Support is fast

Jaswal
WAHEGURUG - RADHASWAMI

Fast service

Mark Casias
BatteryWeb

Perfect fit

Mark Casias
STX20L-BS Battery for Harley Softail FLS FLST 1991-2017 High Performance

Works Perfectly!!

Ben Benson
Invacare 220 Scooter High Performance Medical Replacement Battery Set

Send Your Battery Photo

Expert Technician Help

Snap a photo or video of your battery and send it to us. We'll identify the exact replacement—fast and hassle-free. Our team has helped thousands of customers find the right battery quickly and easily.

POST YOUR BATTERY IMAGE
Product & Solutions Expert

Product & Solutions Expert

✉ sales@batteryweb.com

🔹 10+ Years Battery Experience 🔹 Fast & Accurate Identification

Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

Delivery and Shipping

🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

Disclaimer

⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

Voltage

11.1V

Amp

4140mAh

HP EliteBook 820 Series — 11.1V Li-Polymer Replacement Battery (SB03XL)

This 11.1V, 4140mAh (45.95Wh) lithium-polymer cell replaces the original battery in the HP EliteBook 820, 820 G1, and 820 G2 series notebooks. It matches the OEM voltage rail and connector spec for direct fitment. Part numbers SB03XL, HSTNN-LB4T, and 717378-001 are all covered by this cell.

  • EliteBook 820 / 820 G1 / 820 G2 fitment: All three generations share the same 11.1V battery bay, connector pinout, and BMS communication protocol over SMBus. The charge controller in each model reads the same EEPROM identifiers, so the cell handshakes without firmware conflict.
  • Bench tested on actual hardware: We ran this cell on an EliteBook 820 G1 and 820 G2 unit. The BMS accepted the cell immediately, charge current ramped normally through CC/CV stages, and the fuel gauge IC registered capacity without triggering an unknown-battery error.
  • Post-swap calibration cycle: After installing, run the laptop down to hibernate-cutoff under normal load — screen on, Wi-Fi active — then charge uninterrupted to 100%. This forces the BIOS battery learn cycle to reset against the new cell and clears the inaccurate health warning that appears on first boot after every cell swap.

BIOS reporting battery health as poor immediately after replacement

The EliteBook 820 BIOS stores learned capacity data from the previous cell in its battery learn table. When a new cell goes in, the BIOS compares live readings against stale data and flags a health warning — not a fault with the new cell. Running one full discharge-to-hibernate followed by an uninterrupted charge to 100% forces the BIOS to rewrite the learn table against the new cell's actual chemistry. After one or two of these cycles the health status clears. If the warning persists past three full cycles, check BIOS version — some early 820 G1 firmware builds require an update before the learn cycle resets correctly.

EliteBook 820 shutting down at 20–30% charge shown on the gauge

This happens when the fuel gauge IC has not yet calibrated against the new cell's discharge curve. The IC still uses the old cell's voltage-to-capacity map, so it misreads the new cell's voltage cliff and triggers a shutdown well before actual depletion. It is not a defective cell — the map just needs a reset. Run two full discharge-to-hibernate cycles with the display at full brightness and a CPU load running, then charge each time to 100%. By the second or third cycle the gauge IC recalibrates and the early-shutdown stops. The target resting voltage at full charge should read between 12.4V and 12.6V on a calibrated cell.

Compatible Models

Elitebook 820 Elitebook 820 G1 EliteBook 820 G2-H0KE0EC EliteBook 820 G2-N9G13EP EliteBook 820 G1-G7H69US EliteBook 820 G2-V1D84UC EliteBook 820 G1-J6P53US EliteBook 820 G1-G2T38UC EliteBook 820 G1-L1B91US EliteBook 820 G1-J0T12US EliteBook 820 G1-K1N97EC EliteBook 820 G2(N2W92UP) EliteBook 820 G2-N2W72UP EliteBook 820 G2-M2N33US EliteBook 820 G2-T0K41PA EliteBook 820 G1(J1H13PP) EliteBook 820 G2-M8V41LC EliteBook 820 G1-F3G67EP EliteBook 820 G2-K1C90PT EliteBook 820 G2-N9M96US EliteBook 820 G1-G8J87US EliteBook 820 G2-V1Q56US EliteBook 820 G1-J6S49PP EliteBook 820 G1-G3E56US EliteBook 820 G1-L1X10UP EliteBook 820 G1-J1J83UP EliteBook 820 G1-K2Y68US EliteBook 820 G2(N4E93PC) EliteBook 820 G2-N2X82UP EliteBook 820 G2-M2R54PP EliteBook 820 G2-T0N29US EliteBook 820 G1(K1Z18PC) EliteBook 820 G2-M8W60EP EliteBook 820 G1-F5M21US EliteBook 820 G2-L3Z38UA EliteBook 820 G2-N9P48US EliteBook 820 G1-G8V34EP EliteBook 820 G2-V2L64US EliteBook 820 G1-J6W11EP EliteBook 820 G1-G4M87US EliteBook 820 G1-L4M27US EliteBook 820 G1-J1L33UP EliteBook 820 G1-K4L26LA EliteBook 820 G2(N6M42UP) EliteBook 820 G2-N3F04EC EliteBook 820 G2-M3N03ES EliteBook 820 G2-T3K46EC EliteBook 820 G1(F8P28UC) EliteBook 820 G2-M9M81US EliteBook 820 G1-F6B45PA EliteBook 820 G2-L4B24LA EliteBook 820 G2-P2B08UP EliteBook 820 G1-G9H21UP EliteBook 820 G2-V5A62US EliteBook 820 G1-J7E57UC EliteBook 820 G1-G4U63UT EliteBook 820 G1-L6N49UP EliteBook 820 G1-J1Z63EC EliteBook 820 G1-K4P53US EliteBook 820 G2(P2A20UP) EliteBook 820 G2-N4J83US EliteBook 820 G2-M3Q44US EliteBook 820 G2-T4M26LP EliteBook 820 G1(L6L98UP) EliteBook 820 G2-N0M90US EliteBook 820 G1-F8E90US EliteBook 820 G2-L6M09UP EliteBook 820 G2-P2Z08US EliteBook 820 G1-G9N52UC EliteBook 820 G2-W0B78US EliteBook 820 G1-J7H33UP EliteBook 820 G1-G4Z50EC EliteBook 820 G1-L8Q33EC EliteBook 820 G1-J2K58EP EliteBook 820 G1-K5T29UP EliteBook 820 G2(P7M94UP) EliteBook 820 G2-N5M54US EliteBook 820 G2-M5E47US EliteBook 820 G2-T4V07UP EliteBook 820 G2(K9S49AW) EliteBook 820 G2-N0U49EC EliteBook 820 G1-F9D90PP EliteBook 820 G2-L6U40US EliteBook 820 G2-P3E55EP EliteBook 820 G1-G9T44EP EliteBook 820 G2-W3J11US EliteBook 820 G1-J7T17US EliteBook 820 G1-G5K18EP EliteBook 820 G1-J2L89LP EliteBook 820 G1-K6M81US EliteBook 820 G2(T4U66UP) EliteBook 820 G2-N5P08US EliteBook 820 G2-M5F98US EliteBook 820 G1-J8Q25ES EliteBook 820 G2-T6A48EC EliteBook 820 G2(M1E24EP) EliteBook 820 G1-M5C64UC EliteBook 820 G2-N0X94UC EliteBook 820 G1-F9X76UP EliteBook 820 G2-L8T98ES EliteBook 820 G2-P3E97EP EliteBook 820 G2-X1H46EP EliteBook 820 G1-G6G13PA EliteBook 820 G1-J4C62EP EliteBook 820 G1-F9Y42UP EliteBook 820 G1-K8C88US EliteBook 720 G1(J8X18AA) EliteBook 820 G1-H5G50ES EliteBook 820 G2-N6H51US EliteBook 820 G2-M5J15UP EliteBook 820 G1-J8V15UA EliteBook 820 G2(M3L84EC) EliteBook 820 G1-P4C31UC EliteBook 820 G2-N1F59US EliteBook 820 G2-L9S81PA EliteBook 820 G2-P4T83ES EliteBook 820 G1-E3V74LT EliteBook 820 G2-N6J45US EliteBook 820 G1-G6K56EC EliteBook 820 G2-T7H54US EliteBook 820 G1-J4P20US EliteBook 820 G1-G0H21US EliteBook 820 G1-K8W23UP EliteBook 725 G2(L6M61UP) EliteBook 820 G1-H7M03EC EliteBook 820 G1-J9E58US EliteBook 820 G2(M6L40UP) EliteBook 720 G1-K6N35US EliteBook 820 G2-N2C54US EliteBook 820 G2-M0X02US EliteBook 820 G2-P5D84PA EliteBook 820 G2-M6L05UP EliteBook 820 G1-E7N07PA EliteBook 725 G2(P7P01UP) EliteBook 820 G2-N6Q07ES EliteBook 820 G1-G6L14EC EliteBook 820 G2-T7W85EP EliteBook 820 G1-J5H79UP EliteBook 820 G1-G1W72PA EliteBook 820 G1-K9Q92PA EliteBook 820 G1-J0P05US EliteBook 820 G1-K0D33UC EliteBook 820 G2(M7D59UP) EliteBook 720 G2-L3Z61UT EliteBook 820 G2-N2Q90EP EliteBook 820 G2-M1E29EP EliteBook 820 G2-P5G11US EliteBook 820 G2-M6N40US EliteBook 820 G1-F1P79ES EliteBook 820 G2-H0HK6EC EliteBook 820 G2-N7G15UC EliteBook 820 G1-G6X47UP EliteBook 820 G2-T9K53US EliteBook 820 G1-J6J71UC EliteBook 820 G1-G2Q60UP EliteBook 820 G1-K9Y64UT EliteBook 820 G1-J0R54US EliteBook 820 G1-K0P38UP EliteBook 820 G2(N0W65UP) EliteBook 820 G2-N2R46EP EliteBook 820 G2-M2E84UP EliteBook 820 G2-P7K81LC EliteBook 820 G1(G2V46AV) EliteBook 820 G2-M7C94UP EliteBook 820 G1-F1R02ES EliteBook 820 G1-J0S34US EliteBook 820 G1-K1N60EC

Replaces Part Numbers

F6B38PA SB03XL HSTNN-LB4T SB03046XL 717378-001 716725-171 716725-1C1 716726-171 716726-1C1 716726-421 717377-001 740362-001 E7U25AA E7U25ET E7U25UT HSTNN-IB4S HSTNN-IB4T HSTNN-l13C SB03046XL-PL

Technical Specifications

Voltage11.1V
Amp Hours4140mAh
Capacity4140mAh
Rate45.95Wh
Net Weight217g /7.65 oz
Gross Weight357g /12.59 oz
Approximate Weight357g /12.59 oz
Dimension 189.73 x 99.54 x 12.60mm

Product Highlights

  • Brand: HP
  • Manufacturer: CS
  • Series: Standard
  • Color: Black
  • Product Type: Li-Polymer
  • Battery Type: Li-Polymer
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

HP EliteBook 820 shows "0% available (plugged in, charging)" after I put the new battery in — what's wrong?

The EEPROM data stored on the old cell has not been overwritten yet, and the fuel gauge IC is reading zero against a blank state table. Plug in the AC adapter, leave it connected for 30 minutes without powering on, then boot into Windows. If the gauge still reads 0%, do a full discharge to hibernate-cutoff and charge uninterrupted to 100% — that single cycle forces the BIOS learn table to initialise against the new cell and the gauge resets to a real value.

Windows says this battery has a 28Wh capacity but the spec shows 45.95Wh — is the cell undersized?

No. What Windows reports in that first boot is the EEPROM-rated value carried over from the old cell's last logged state, not the physical capacity of the new cell. The fuel gauge IC has not yet mapped the new cell's full discharge curve. Run two complete discharge-to-100%-charge cycles and the reported Wh figure will step up toward the rated 45.95Wh as the IC writes new data to the EEPROM. Check the value again in Windows Battery Report after the second full cycle.

New battery won't charge above 80% on the EliteBook 820 — is there a hardware fault?

Not a fault with the cell. The EliteBook 820 BIOS includes a Battery Health Manager feature that caps charge at 80% when enabled — it is on by default in some IT-managed fleet configurations. Boot into BIOS setup (F10 at POST), go to Power → Battery Health Manager, and switch the setting from "Maximize my battery health" to "Let HP manage my battery charging." Save and reboot — the charge limit lifts and the cell will now reach 100%.

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Bancontact
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Related Products

HP Elitebook 820 Replacement Battery, 11.1V, 4140mAh, Li-Polymer 1

Engineered for Performance. Built to Last.

Check out our top-rated selection of reliable products built to last. We offer high-quality options that deliver consistent performance for all your needs.

Our Collections