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

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

NEC Versa M300 Replacement Battery 14.8V 4400mAh PC-VP-WP44

Up to 19% off
New arrival
From $97.99 USD $119.99
Shipping calculated at checkout.
Fits NEC Versa M300, M500, E600 laptops replacing OEM part PC-VP-WP44 or OP-570-75901.
14.8V, 4400mAh capacity delivers 65.12Wh — full charge restores native runtime on Versa M-series hardware.
Connector seats flush into the battery bay slot with single-point locking tab; no adapter needed.
We bench-tested against OEM cells; BMS accepted full charge cycles without cutoff faults or voltage drift.
After install, run one full discharge to hibernate then charge uninterrupted to 100% to reset BIOS battery learn cycle and clear false health warnings.
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

14.8V

Amp

4400mAh

NEC Versa M300 / M500 / E600 — 14.8V Li-ion Replacement Battery (PC-VP-WP44)

This is a 14.8V, 4400mAh (65.12Wh) Li-ion battery for the NEC Versa M300, Versa M500, and Versa E600 notebook computers. It replaces OEM part numbers PC-VP-WP44 and OP-570-75901. Fit and connector orientation match the original cell exactly.

  • Versa M300, M500, and E600 compatibility: All three models share the same 14.8V battery bay, connector pinout, and BMS handshake protocol — one cell covers the full platform without modification.
  • Bench tested on actual hardware: We cycled this cell under combined CPU and display load on a Versa M300. The BMS held voltage above the low-battery cutoff threshold through full discharge, and the charge IC accepted a clean uninterrupted charge from empty to 100%.
  • First-cycle calibration tip: After installing, run one full discharge to the hibernate-cutoff point, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears after every cell swap on NEC Versa systems.

BIOS reporting battery health as poor immediately after replacement

The Versa BIOS stores battery health data in EEPROM on the old cell. When a new cell is installed, that EEPROM data is gone and the BIOS flags an unknown or degraded status. This is not a fault with the replacement cell — it is a data mismatch. Running one complete discharge-to-hibernate and then a full uninterrupted charge forces the BIOS to rewrite its health record against the new cell's actual capacity. After two to three cycles, the health indicator returns to normal.

Laptop shuts down abruptly at 20–30% charge remaining

This happens when the cell cannot sustain voltage under the combined draw of the CPU, display backlight, and active storage — a voltage cliff where the fuel gauge IC still reads 20–30% but the cell drops below the system cutoff threshold under load. On the Versa M300, the BIOS triggers an immediate shutdown rather than a graceful hibernate when voltage collapses faster than the gauge predicts. The fuel gauge IC needs calibration cycles to map the new cell's discharge curve accurately. Run two full discharge-to-hibernate cycles and the shutdown point will shift to the correct low percentage.

Compatible Models

Versa M300 Versa M500 Versa E600

Replaces Part Numbers

PC-VP-WP44 OP-570-75901

Technical Specifications

Voltage14.8V
Amp Hours4400mAh
Capacity4400mAh
Rate65.12Wh
Gross Weight150g /5.29 oz
Approximate Weight150g /5.29 oz
Dimension 153.10 x 85.30 x 21.30mm

Product Highlights

  • Brand: NEC
  • Manufacturer: CS
  • Series: Standard
  • Color: Silvery white
  • Product Type: Li-ion
  • Battery Type: Li-ion
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

My Versa M300 shows 0% or "unknown" battery in Windows right after I put in the new cell — is the battery dead?

No — the fuel gauge IC in the laptop is reading EEPROM data from the old cell, which no longer exists. The new cell has no stored profile yet, so Windows reports 0% or unknown. Run a full discharge to hibernate cutoff, then charge uninterrupted to 100%. After one to two complete cycles the fuel gauge IC maps the new cell's discharge curve and the percentage reads accurately.

The new battery shows the wrong Wh rating in system information — it says 48Wh instead of 65Wh.

The Wh figure in system info is pulled from the EEPROM record written by the original cell, not from a live measurement of the new cell. Until the BIOS completes a battery learn cycle, it reports the old rated value. Discharge the laptop fully to hibernate, then charge to 100% without interruption. The BIOS rewrites the Wh record after that cycle, and the correct 65.12Wh figure appears in system information.

New battery charges to 80% and then stops — charger light goes green but the cell never reaches 100%.

Some NEC Versa BIOS versions ship with a charge-limit setting enabled to reduce cell stress during storage or shipping. This is a firmware-controlled threshold, not a fault in the replacement cell. Go into BIOS setup on boot, navigate to the power or battery menu, and check for a "Battery Charge Mode" or "Eco Charge" option — disable it and save. After a normal boot the charge IC will allow a full 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

Packard Bell iGo 3000 Replacement Battery, 14.8V, 4400mAh, Li-ion 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