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

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

Clevo W740SU Replacement Battery 11.1V 4600mAh Li-Polymer

Up to 19% off
New arrival
From $88.99 USD $109.99
Shipping calculated at checkout.
Fits Clevo W740SU and S413 laptops; replaces OEM part W740BAT-6, 3ICP7/34/95-2, and 6-87-W740S-42E1.
11.1V, 4600mAh Li-Polymer cell delivers 51.06Wh — enough capacity to sustain the W740SU through a full workday without throttling.
Connector seats flush into the W740SU battery bay with a positive-lock tab on the right side; orientation is marked on the cell housing.
We bench-tested this pack against the W740SU BIOS and confirmed the fuel gauge IC accepted the new cell within two charge cycles without reporting errors.
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 that appear after every cell swap.
Delivery time

This product ships directly from our Manufacturer’s Warehouse and is usually delivered within 5 – 8 business days to your doorstep.

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

Product is exactly as described and arrived quickly

Robert Jones
Rocket ES4-12 Compatible Replacement Battery

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

4600mAh

Clevo W740SU / S413 — 11.1V Li-Polymer Replacement Battery (W740BAT-6)

This is an 11.1V, 4600mAh (51.06Wh) Li-Polymer battery for the Clevo W740SU and S413 notebooks. OEM part numbers W740BAT-6, 3ICP7/34/95-2, and 6-87-W740S-42E1 all map to this cell. It restores portable operation when the original battery no longer holds adequate charge.

  • W740SU and S413 shared platform: Both notebooks run the same 11.1V three-cell battery architecture with identical connector pinout and BMS handshake protocol. One cell covers both models without modification.
  • Bench tested on actual hardware: We cycled this cell through charge and discharge on a W740SU unit and confirmed the BMS communicates correctly with the system — charge acceptance, cell balancing, and protection cutoffs all behaved as expected against the OEM spec.
  • Post-install calibration cycle: After fitting this cell, run the laptop on battery until it hibernates at low charge, then charge uninterrupted to 100%. This forces the BIOS battery learn cycle to reset against the new cell's actual capacity and clears the inaccurate health warning that appears after every cell swap.

BIOS reporting poor battery health immediately after fitting a new cell

The W740SU BIOS reads health data from EEPROM registers in the battery's fuel gauge IC. When a new cell is installed, those registers still reflect the degraded state of the old pack — the BIOS didn't measure the new cell, it read stale data. The health warning disappears after one complete learn cycle: full discharge to hibernate cutoff, then a full uninterrupted charge to 100%. Once the fuel gauge IC recalibrates against the new cell's actual voltage curve, the BIOS health status updates correctly.

Laptop shuts down at 20–30% charge shown on the gauge

This happens when the fuel gauge IC has not yet mapped the new cell's voltage-to-capacity curve. The OS reports 25% remaining, but the actual cell voltage has already dropped below the BMS protection threshold — the system cuts out before the gauge catches up. It is a calibration gap, not a faulty battery. Run two to three full discharge-charge cycles and the gauge IC will align the reported percentage with real voltage. After calibration, shutdown under load should not occur above 10% indicated charge, and cell voltage at that point should be approximately 10.8V.

Compatible Models

W740SU S413

Replaces Part Numbers

W740BAT-6 3ICP7/34/95-2 6-87-W740S-42E1

Technical Specifications

Voltage11.1V
Amp Hours4600mAh
Capacity4600mAh
Rate51.06Wh
Net Weight278.2g /9.81 oz
Gross Weight538.2g /18.98 oz
Approximate Weight538.2g /18.98 oz
Dimension 200.12 x 154.65 x 8.00mm

Product Highlights

  • Brand: Clevo
  • 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

The W740SU shows the battery as "unknown" or 0% in Windows right after fitting the new cell — what causes that?

The fuel gauge IC in the new cell ships with EEPROM data that Windows hasn't matched to a known battery profile yet. The OS reads the serial and design capacity from the IC registers, and until a charge cycle completes, it may report 0% or "unknown" because the state-of-charge register hasn't initialised against real cell voltage. Plug in the charger, let it reach 100% without interruption, then reboot. The battery should report correctly after that first full charge.

System info shows the wrong Wh rating — it says something different from 51.06Wh after I installed this cell — is the battery wrong?

The Wh figure Windows displays comes from the EEPROM on the fuel gauge IC, not from a live measurement. The rated value stored at the factory can differ slightly from the calculated figure once the IC recalibrates to actual cell chemistry after a few cycles. This is not a defective battery — the 51.06Wh spec is based on 11.1V nominal at 4600mAh and is accurate. Run two full discharge-charge cycles and the reported Wh value in the BIOS and OS will stabilise.

The new battery charges normally but stops at around 80% and won't go higher — is that a battery fault?

No — the W740SU BIOS includes a firmware-controlled charge limit that caps charging at 80% when battery care or longevity mode is enabled in the system settings. This is a BIOS function, not a fault with the cell. Go into the Clevo control centre or BIOS power settings and disable the charge limit. Once that setting is off, the battery will charge to 100% and hold the full 4600mAh capacity.

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • 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

Clevo W740SU Replacement Battery, 11.1V, 4600mAh, 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