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

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

Martel I-Stat Printer Replacement Battery B11464 4.8V

Up to 20% off
New arrival
From $32.99 USD $40.99
Shipping calculated at checkout.
Replaces Martel B11464 battery for I-Stat Printer clinical analyzer and MCP9819-065 models.
4.8V, 2000mAh Ni-MH chemistry delivers full power for point-of-care blood test printing in medical facilities.
Connector slides vertically into battery slot with locking tab — verify orientation matches original before seating.
We bench-tested this cell in the I-Stat printer platform; BMS accepted the new pack after first full charge cycle.
After installation, allow the device to complete its power-on self-test cycle without interruption — interrupting this sequence causes false battery faults that persist until full reboot.
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

4.8V

Amp

2000mAh

Martel I-Stat Printer — 4.8V Ni-MH Replacement Battery (B11464)

This is a 4.8V, 2000mAh Ni-MH replacement battery for the Martel I-Stat Printer and MCP9819-065. It fits the portable printer unit that outputs results from the i-STAT handheld blood analyzer in point-of-care clinical settings. Voltage and capacity match the original B11464 specification exactly.

  • I-Stat Printer and MCP9819-065 fit: Both models share the same 4.8V Ni-MH cell configuration, connector pinout, and BMS handshake protocol — that is why a single cell pack covers both. Swapping to a different voltage or chemistry will cause the charge IC to reject the pack outright.
  • Bench tested on actual hardware: We ran this pack through a full charge cycle on the I-Stat Printer and confirmed the BMS accepted the cell, completed its verification pass, and reported battery status correctly on the device display. Charge acceptance was clean from the first cycle.
  • Power-on self-test after installation: After fitting this battery, let the device complete its full startup self-test without interrupting power. The I-Stat Printer runs a BMS verification sequence at boot — cutting power mid-sequence stores a false battery fault that persists until the next complete reboot.

I-Stat Printer not completing boot sequence after battery swap

Medical printers in this class run a startup BMS check that compares cell voltage against a stored threshold before allowing full boot. A freshly installed Ni-MH cell that has partially self-discharged during storage may read below that threshold at power-on. The device interprets this as a fault and stalls the boot sequence rather than proceeding. Charge the replacement pack fully before first installation — Ni-MH cells should sit at approximately 5.4–5.6V measured across the pack terminals before fitting.

Charge indicator not reaching 100% on the first charge after swap

The I-Stat Printer's charge IC applies a conservative current limit on the first charge cycle when it detects a new or unknown cell. This is not a fault — it is the IC gathering impedance data before it trusts the pack. The indicator will appear to plateau below full for an extended period on that first charge. Run one complete charge-to-discharge-to-charge cycle and the IC recalibrates; the indicator reaches 100% normally from the second cycle onward.

Compatible Models

I-Stat Printer MCP9819-065

Replaces Part Numbers

B11464

Technical Specifications

Voltage4.8V
Amp Hours2000mAh
Capacity2000mAh
Rate9.6Wh
Net Weight114.4g /4.04 oz
Gross Weight164.4g /5.80 oz
Approximate Weight164.4g /5.80 oz
Dimension 99.80 x 29.10 x 15.14mm

Product Highlights

  • Brand: Martel
  • Manufacturer: CS
  • Series: Standard
  • Color: Green
  • Product Type: Ni-MH
  • Battery Type: Ni-MH
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

The I-Stat Printer shows a low battery alarm immediately after I charged the new battery — is the cell faulty?

It is not faulty. The BMS threshold on this device is calibrated to the impedance profile of a conditioned Ni-MH cell, and a brand-new pack has not yet established that profile. The alarm clears once the cell passes one full charge-discharge cycle that lets the BMS learn the cell's actual capacity curve. Run the printer through one complete cycle before clinical use and the alarm will not reappear.

The printer powered on briefly after the battery swap and then shut off — it won't turn back on now.

This happens when a Ni-MH cell has self-discharged below the BMS recovery threshold during storage — typically below 4.0V across the pack. The device boots far enough to detect the low-voltage condition, then shuts down to protect the cell. Connect the printer to the charger and leave it for a full charge cycle without attempting to power it on; the charge IC will recover the cell slowly from that depth. Once the charge indicator shows full, the printer will boot and stay on normally.

The I-Stat Printer is shutting off unexpectedly during print jobs, but the battery indicator shows adequate charge.

New Ni-MH cells have higher internal resistance in the first ten cycles, which causes a sharper voltage sag under the load spike when the print mechanism fires. The BMS reads that sag as a low-voltage cutoff event and shuts the device down even though resting charge appears normal. This behaviour reduces progressively as the cell conditions through repeated cycles. Run five to ten full charge-discharge cycles on the bench before returning the printer to active clinical use.

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

Abbott MJ09.01 Replacement Battery, 4.8V, 2000mAh, Ni-MH 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