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

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

Lenovo IdeaPad Flex 4-1480 Compatible Battery L15C3PB1 11.4V

Up to 19% off
New arrival
From $68.99 USD $84.99
Shipping calculated at checkout.
Fits Lenovo IdeaPad Flex 4-1480 and replaces OEM part L15C3PB1.
11.4V, 4550mAh lithium-polymer cell restores full charge cycles to the notebook.
Connector orientation matches original; locking tab seats flush against the battery bay slot.
We bench-tested the BMS on first charge — voltage ramped steady, no early cutoff triggered.
After installation, run one full discharge to hibernate-cutoff then charge uninterrupted to 100% — this resets the BIOS battery learn cycle and clears inaccurate health warnings.
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

11.4V

Amp

4550mAh

Lenovo IdeaPad Flex 4-1480 — 11.4V Li-Polymer Replacement Battery (L15C3PB1)

This is an 11.4V, 4550mAh lithium-polymer replacement battery for the Lenovo IdeaPad Flex 4-1480, Flex 4-1480 14", Flex 4-1570, and Flex 4-1580 80VE series. It replaces OEM part numbers L15C3PB1, B102297-0004, 5B10K84638, and L15M3PB0. Swap it in when the original cell no longer holds charge or causes unexpected shutdowns.

  • Flex 4-1480 / 4-1570 / 4-1580 series compatibility: These models share the same 11.4V three-cell battery rail, identical connector pinout, and the same BMS handshake protocol — one cell fits the full platform without modification.
  • Bench tested on actual hardware: We ran this cell on a Flex 4-1480 unit and confirmed the BMS negotiated correctly with the BIOS on first boot. The fuel gauge IC picked up the cell and charge cycling began without error flags.
  • Post-install calibration on the Flex 4: After fitting this battery, run the unit down to hibernate cutoff, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears after swapping cells on Lenovo IdeaPad hardware.

BIOS reporting poor battery health immediately after fitting a new cell

The Lenovo BIOS reads health data stored in the battery's EEPROM, not from live cell chemistry. When a new cell is installed, the EEPROM data doesn't match the BIOS's learned discharge profile from the old battery. The system flags this as degraded health even though the cell is new. One full discharge-to-hibernate followed by an uninterrupted charge to 100% rewrites the learn cycle and clears the warning.

Flex 4 shutting down at 20–30% charge shown on screen

This happens when the cell voltage drops sharply under combined CPU and display load before the fuel gauge reaches zero — a voltage cliff caused by a worn or mismatched cell. The OS fuel gauge reads state-of-charge against a discharge curve that no longer matches the cell's actual output. A new cell with the correct chemistry resets the discharge curve the fuel gauge IC tracks against. After two full calibration cycles, shutdowns at 20–30% shown should stop.

Compatible Models

IdeaPad Flex 4-1480 Flex 4-1480 14" Flex 4-1570 Flex 4-1580 80VE Flex 4-1470

Replaces Part Numbers

L15C3PB1 B102297-0004 5B10K84638 L15M3PB0

Technical Specifications

Voltage11.4V
Amp Hours4550mAh
Capacity4550mAh
Rate51.87Wh
Net Weight222.6g /7.85 oz
Gross Weight362.6g /12.79 oz
Approximate Weight362.6g /12.79 oz
Dimension 221.24 x 125.10 x 6.20mm

Product Highlights

  • Brand: Lenovo
  • 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

My Lenovo Flex 4-1480 is showing "0% available (plugged in, charging)" after I put in the replacement battery — what's happening?

The fuel gauge IC on the Flex 4 reads charge state against the old cell's EEPROM profile, so a brand-new cell can show 0% or "unknown" on first boot. This isn't a fault with the battery or the charger. Drain the laptop fully to hibernate cutoff, then charge uninterrupted to 100% without interruption. After one complete cycle the fuel gauge IC recalibrates against the new cell and the percentage reading stabilises.

The system info panel shows the wrong Wh rating — 45Wh instead of 51.87Wh — after installing this battery. Is something wrong?

The Wh figure Windows or Lenovo Vantage displays is pulled from the EEPROM on the cell, which may store the OEM-rated value rather than the actual chemistry capacity of the replacement. This is a data field difference, not a performance issue — the cell still delivers its full 51.87Wh capacity during discharge. Run two full discharge-to-hibernate and charge-to-100% cycles. The BIOS learn cycle updates the reported value as it builds a real discharge profile against the new cell.

Charge is stopping at exactly 80% and won't go higher — is this a faulty battery?

This is almost always the BIOS-controlled charge limit in Lenovo's firmware, not a problem with the cell itself. Lenovo ships many IdeaPad models with Conservation Mode active, which caps charging at 60% or 80% to reduce cell wear during long plugged-in sessions. Open Lenovo Vantage, go to Power, then Battery, and check whether Conservation Mode is switched on. Turn it off and the cell will charge to 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

Lenovo IdeaPad Flex 4-1480 Replacement Battery, 11.4V, 4550mAh, 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