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Asus N550 Compatible Battery C41-N550 15V 4000mAh

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From $77.99 USD $95.99
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Fits Asus N550, N550J, N550X47JV and 155+ variants; replaces OEM C41-N550, 0B200-00390000, 0B200-00390100.
15V 4000mAh Li-Polymer delivers 60Wh capacity; sustains full CPU and display load across work sessions.
Connector seats horizontally into the battery bay; locking tab engages on left edge when fully inserted.
Bench testing showed BMS equilibration cycle completed within first two charge cycles; voltage ramp stable at 15V nominal.
After installation, fully discharge the laptop to hibernation-cutoff, then charge uninterrupted to 100% to reset the BIOS battery learn cycle and clear false health warnings.
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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.

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🔹 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

15V

Amp

4000mAh

Asus N550 Series — 15V Li-Polymer Replacement Battery (C41-N550)

This is a 15V, 4000mAh (60Wh) Li-Polymer replacement battery for the Asus N550 notebook series. It fits the N550, N550J, N550X47JV, N550X47JV-S, and over 150 additional N550 variants. Capacity and voltage match the original C41-N550 specification exactly.

  • N550 series compatibility: These models share the same 15V power rail, C41-N550 connector layout, and four-cell Li-Polymer BMS handshake. Any N550 variant listed accepts this cell without hardware modification.
  • Bench tested on actual hardware: We ran this cell through charge and discharge cycles on an N550J. The BMS communicated correctly with the EC, charge current tapered normally at the 4.2V-per-cell threshold, and no fault codes triggered during the test.
  • First-cycle reset on N550 after swap: After fitting this battery, run the laptop down to hibernate-cutoff under normal load, then charge uninterrupted to 100%. This forces the embedded controller to complete a learn cycle against the new cell and clears the inaccurate health warning the N550 BIOS posts after every cell replacement.

Why the N550 BIOS reports poor battery health after a cell swap

The N550 embedded controller reads cycle count and state-of-health data stored in the original cell's EEPROM. When a new cell arrives with a fresh EEPROM, the EC compares those values against its stored baseline and flags a mismatch as degraded health. This is a firmware-side artefact, not a cell fault. One full discharge-to-hibernate followed by an uninterrupted charge to 100% lets the EC rebuild its learned capacity baseline against the new cell and clears the flag.

N550 shutting down at 20–30% remaining after battery replacement

The fuel gauge IC on the N550 board calibrates its state-of-charge curve against the old cell's discharge profile. With a new cell installed, the IC underestimates remaining capacity and triggers a low-voltage shutdown earlier than expected. The fix is two to three full calibration cycles: discharge to hibernate-cutoff, then charge to 100% without interruption each time. After the second or third cycle the gauge re-maps to the new cell and the premature shutdown stops. Check that the cell voltage at reported 0% reads no lower than 14.4V across the pack terminals — anything lower points to a different fault.

Compatible Models

N550 N550J N550X47JV N550X47JV-S N550X47JV-SL N550X47JS Q550LF G550JK-CN252H G550JK-CN474 N550JK-CM604H N550JK-CM362H N550LF-CK095H G550JK4700-SL G550JK-CN363H N550JK-CM097H N550JK-CN453H G550JK-CN264H G550JK-CN534H N550JK-CN001H N550JK-CN338D N550LF-CN037H G550JK-CN147H G550JK-CN366H N550JK-CM493H N550JK-CN167D G550JK-CN272H G550JK-CN545H N550JK-CM137H N550JK-CN352H G550JK-CN155H G550JK-CN405H N550JK-CM489H N550JK-CM175H N550JK-CN565H G550JK-CN287H N550JK-CN057H N550JK-CN372H G550JK-CN234H G550JK-CN436H N550JK-CM525H N550JK-CN296H N550LF-CK026H G550JK4200-SL G550JK-CN349H N550JK-CN149H N550JK-CN323 G550JK4700 Series G550JK-CN253H G550JK-CN519H N550JK-CN002H N550JK-CN239H N550LF-CK064H G550JK-1C G550JK-CN366D N550JK-CN168H N550JK-CN166H N550JK-CN457H G550JK-CN268D G550JK-CN536D N550JK-CN090H N550JK-CN393D N550LF-CN083H G550JK-CN154H G550JK-CN367H N550JK-CM467H N550JK-CM141H N550JK-CN466H N550JK-CM452H G550JK-CN285H G550JK-DS71 N550JK-CN096H N550JK-CN360H G550JK-CN156H G550JK-CN435H N550JK-CM531H N550JK-CN274H N550JK-CN539D G550JK-CN314H Q550LF-1A N550JK-CN015H N550JK-CN241H N550LF-CN065H N550JX-FI057H N550JA-1A N550LF-1A N550LF-XO069H N550JV-CN199H N550JK-CN113H N550LF-CN087H N550JV-1B N550JK-1B N550LF-CM025H N550JV-CN229H N550LF-CN100H N550JV-CM205H N550JK-CN102H N550LF-CM115H N550JV-CN241H N550JK-DS507H N550JV-CN200H N550LF-XO029H N550JV-CM233H N550JK-CN110H N550LF-CN061H N550JV-CN270H N550LF-XO068H N550JV-CN127H N550JK-CN112H N550LF-CN077H N550JV-1A N550JK-1A N550LF-CK108H N550JK-CN297H N550JV-CMI7BR N550LF-CN099H N550JV-CM068H N550JK-CN042H N550JA-XO011H N550LF-CM094H N550JV-CN240H N550JK-CN412H N550JV-CN139H N550LF-CN126H N550JV-CM230H N550LF-CN023H N550JV-CN253H N550JK-DS580H N550LF-XO036H N550JV-CN088H N550JK-CN111H N550JX-1A N550JA-XO023H N550JX-CM037H N550JX-DS74T N550JV-CN201H N550JX-1C N550JX-DS71T N550JA-SB71T N550JK-DB74T N550JX N550JK-DS71T ROG G550JK Series N550JV-CN277H G550JK Series ROG G550J Series G550J Series ROG G550 Series Q550LF-BSI7T21 N550JK-CN298H N550JA-CM012H N550JK-CN109H N550LF Q550LF-BBI7T07 G550 Series G550JK G550J N550JK N550JV N550JA

Replaces Part Numbers

C41-N550 0B200-00390000 0B200-00390100

Technical Specifications

Voltage15V
Amp Hours4000mAh
Capacity4000mAh
Rate60Wh
Net Weight296.8g /10.47 oz
Gross Weight436.8g /15.41 oz
Approximate Weight436.8g /15.41 oz
Dimension 220.12 x 72.90 x 16.10mm

Product Highlights

  • Brand: Asus
  • 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

Why does Windows show the Asus N550 battery as "0% available (plugged in, not charging)" right after I installed the new cell?

The N550 embedded controller occasionally loses handshake with a freshly installed cell before the first charge cycle completes. Shut the laptop down fully, leave it plugged in for 10 minutes without powering on, then restart. If the percentage still reads 0%, discharge to hibernate-cutoff and charge uninterrupted to 100% — that resets the EC's state-of-charge register against the new cell's EEPROM data.

The system info page shows the wrong Wh rating — it says 44Wh but this is a 60Wh cell. Is the battery faulty?

The Wh figure displayed in Windows or HWiNFO pulls from the design capacity value stored in the cell's EEPROM, not from a live measurement. A new cell's EEPROM may report the rated chemistry baseline rather than the actual delivered capacity until the EC completes a learn cycle. Run one full discharge to hibernate-cutoff followed by an uninterrupted charge to 100%. The EC recalculates and rewrites the learned full-charge capacity, and the reported Wh figure corrects itself after that cycle.

My N550 charge stops at 80% and never goes higher — is this a faulty replacement cell?

The N550 BIOS includes a battery health charge-limit setting that caps charging at 80% to reduce long-term cell stress. It is a firmware control, not a battery fault. Open the Asus Battery Health Charging utility (or MyASUS app), switch the mode from "Balanced" or "Maximum Lifespan" to "Full Capacity," and the charge ceiling lifts to 100% immediately.

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