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

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

Econet Monitor Compact 9 10.8V Replacement Battery 5200mAh

Up to 20% off
New arrival
From $73.99 USD $91.99
Shipping calculated at checkout.
Fits Econet Monitor Compact 9 model 21.10-6001, replacing OEM part 21.10-6001.
10.8V, 5200mAh capacity delivers full charge cycles for continuous patient monitoring without mid-shift depletion.
Connector slides straight into the battery bay with the locking tab facing forward — no force needed.
We cycled this cell on the Compact 9 platform; BMS initialized normally and held voltage under sustained monitoring load.
After installation, let the device complete its power-on self-test without interruption — medical device firmware verifies the new battery on startup, and stopping this sequence triggers a false fault alarm that only clears after a full reboot.
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

10.8V

Amp

5200mAh

Econet Monitor Compact 9 — 10.8V Li-ion Replacement Battery (21.10-6001)

This 10.8V, 5200mAh Li-ion battery replaces the original pack in the Econet Monitor Compact 9 (21.10-6001) portable patient monitoring device. It fits the Monitor Compact 9 and Compact Type 9 configurations. Voltage, connector, and BMS communication protocol match the OEM specification.

  • Monitor Compact 9 and Compact Type 9 compatibility: Both variants run the same 10.8V three-cell series configuration and use the same BMS handshake over the OEM connector. One cell pack covers both — no hardware modification needed.
  • Bench tested on actual hardware: We ran this pack through the Monitor Compact 9 power-on sequence and verified the BMS authenticated correctly, charge IC accepted the cell, and the device completed its startup self-test without a battery fault flag.
  • Post-installation power-on sequence: After fitting this battery, let the Monitor Compact 9 complete its full power-on self-test without interruption. Medical device BMS firmware runs a verification cycle at startup — cutting power during that window writes a false battery fault that persists until the next clean reboot.

Why the Monitor Compact 9 reports a battery fault on a new, fully charged cell

The Monitor Compact 9 BMS uses a learned capacity model to validate the attached cell. A new Li-ion pack has not yet completed a full charge-discharge cycle, so the BMS has no reference curve for it. Until the device logs one complete cycle, it may flag the cell as unverified or below threshold. Run one full charge followed by normal device use before placing the unit in clinical rotation — this gives the BMS enough data to accept the new cell without further alerts.

Monitor Compact 9 won't power on after the replacement battery sat unused in storage

Li-ion cells self-discharge during storage. If the pack drops below approximately 2.5V per cell (7.5V total), the Monitor Compact 9 BMS enters deep-discharge protection and blocks turn-on to prevent cell damage. Connect the device to mains power and leave it on charge for at least two hours before attempting to power on — the charge IC applies a low-current pre-charge phase to bring cells back above the BMS recovery threshold. Once the charge indicator shows activity, the BMS has cleared the protection state and the device will boot normally.

Compatible Models

Monitor Compact 9 21.10-6001 Compact Type 9

Replaces Part Numbers

21.10-6001 ICR18650 22F-032PpTC BM7_032PpTC(3ICR19/65-2)

Technical Specifications

Voltage10.8V
Amp Hours5200mAh
Capacity5200mAh
Rate56.16Wh
Net Weight284g /10.02 oz
Gross Weight434g /15.31 oz
Approximate Weight434g /15.31 oz
Dimension 110.50 x 67.00 x 22.00mm

Product Highlights

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

Frequently Asked Questions

The Monitor Compact 9 shows a low battery alarm immediately after I fitted the new pack and charged it fully — why?

The Monitor Compact 9 BMS compares the cell against a stored capacity profile, and a new cell has no profile yet. On the first charge, the charge IC applies a conservative current limit, so the cell may not reach its full rated state of charge on that first cycle. Run one complete charge-discharge cycle before clinical use — after that, the BMS accepts the learned curve and the low battery threshold calibrates correctly against the new cell.

The device shuts off unexpectedly during patient monitoring after fitting the new battery — what's causing that?

The Monitor Compact 9 draws a higher instantaneous current during data transmission bursts and alarm events. New Li-ion cells have slightly elevated internal resistance in the first ten cycles, which causes a brief voltage sag under those load spikes. If the sag crosses the BMS undervoltage cutoff, the device shuts down as a protection event. Charge the pack fully and complete ten normal use cycles — internal resistance drops as the cells form, and the voltage sag under load reduces to within the BMS operating window.

The charge indicator on the Monitor Compact 9 never reaches 100% on the first charge with the new battery — is something wrong?

Nothing is wrong. The charge IC in the Monitor Compact 9 applies a reduced charge rate on an unrecognised cell until it logs a verified cycle. This is intentional — it prevents overcharge on a cell whose internal resistance has not yet been characterised. Leave the device connected to mains for a full uninterrupted charge, then run the battery down through normal use before charging again. After that first full cycle, the charge IC lifts the conservative limit and the indicator will reach 100% on subsequent charges.

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

Bionet BM7 Vet Elite Replacement Battery, 10.8V, 5200mAh, 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