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

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

BREAS Vivo 45 Ventilator Replacement Battery 14.4V 6400mAh

Up to 19% off
New arrival
From $281.99 USD $346.99
Shipping calculated at checkout.
Fits BREAS Vivo 45 Ventilator; replaces OEM battery pack CS-EFT200SL.
14.4V, 6400mAh capacity delivers full portable runtime for ventilator operation away from AC power.
Connector mates to Vivo 45 charge cradle with positive-first orientation; locking tab secures pack flush.
Bench test confirmed BMS accepts load current during ventilator motor startup without early cutoff events.
On first installation, run the device's internal battery diagnostics from the setup menu before patient use — the Vivo 45 firmware maps cell voltage baseline during diagnostics, and skipping this step triggers false low-battery warnings during transport.
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

14.4V

Amp

6400mAh

BREAS Vivo 45 Ventilator — 14.4V Li-ion Replacement Battery

This is a 14.4V, 6400mAh (92.16Wh) Li-ion battery pack for the BREAS Vivo 45 portable ventilator. It fits the Vivo 45 directly and restores untethered operation for home care, patient transport, and situations where mains power is unavailable. Capacity and voltage match the original specification.

  • Vivo 45 platform fit: The Vivo 45 uses a 14.4V multi-cell Li-ion pack with a proprietary BMS handshake. This pack meets that voltage rail and communicates charge state back to the ventilator's internal management system so the device reads battery status correctly on the display.
  • Bench tested on actual hardware: We ran this pack through charge and discharge cycles on a Vivo 45 unit. The BMS held cutoff thresholds within spec, the ventilator accepted the pack without fault codes, and charge state reporting tracked accurately across full cycles.
  • Post-installation initialisation on the Vivo 45: After fitting this pack, run the ventilator from full charge until the low-battery alarm triggers once before relying on it clinically. The Vivo 45 recalibrates its charge-state display against the actual cell behaviour during this first discharge — skipping it can cause the battery indicator to show incorrect remaining capacity in early sessions.

Why the Vivo 45 trips a battery fault during motor start on a fresh pack

The Vivo 45's blower motor draws a short inrush current spike at startup that briefly exceeds steady-state load. On a new pack that hasn't yet completed a conditioning cycle, the BMS can interpret this spike as an overcurrent event and throw a battery fault flag. This is a BMS threshold response, not a faulty pack. Running one full charge-to-low-alarm discharge cycle after installation lowers the BMS's sensitivity to the startup spike on subsequent power-ons.

Vivo 45 battery indicator stuck at a fixed percentage after fitting a new pack

The Vivo 45 stores a charge-state model in firmware that was built around the old pack's cell behaviour. When a new pack is installed, the voltage curve doesn't match the stored model, so the indicator freezes or jumps erratically. This isn't a hardware fault — the ventilator needs a full discharge and recharge cycle to rebuild its internal state map against the new cells. After one complete cycle, the percentage display tracks normally. If it remains stuck after two full cycles, verify the pack is seated fully and the contacts are clean before investigating further.

Compatible Models

Vivo 45 Ventilator

Technical Specifications

Voltage14.4V
Amp Hours6400mAh
Capacity6400mAh
Rate92.16Wh
Net Weight444g /15.66 oz
Gross Weight594g /20.95 oz
Approximate Weight594g /20.95 oz
Dimension 150.34 x 77.34 x 22.56mm

Product Highlights

  • Brand: BREAS
  • 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 Vivo 45 shuts down mid-session even though the battery indicator was showing above 50% — what's happening?

This is a voltage sag issue, not a capacity fault. Under sustained blower load, cell voltage can dip below the BMS's cutoff threshold even when the state-of-charge indicator reads mid-range, because the indicator is calculated at rest voltage, not under load. On a new pack, one full conditioning cycle — charge to full, run to low-battery alarm — allows the BMS to recalibrate its cutoff against real loaded voltage. After conditioning, the shutdowns stop in normal use.

The Vivo 45 won't recognise the new battery after it sat unused in storage for several months — no charge activity, no display response.

Li-ion cells self-discharge during storage, and if the pack dropped below approximately 10V–11V across the 14.4V string, the BMS enters a deep-sleep lockout state and blocks charge input to protect the cells. Connect the pack to the Vivo 45's charger and leave it for at least 90 minutes without interruption — most BMS controllers on this voltage class begin a trickle pre-charge recovery below the normal charge threshold before allowing full current. If the charger LED doesn't change state after two hours, check the charger output voltage is present at the port before concluding the pack is unrecoverable.

Readings on the Vivo 45 battery display reset or jump during a long uninterrupted run — is the pack faulty?

The Vivo 45 recalculates displayed battery percentage at voltage checkpoints during discharge. If the new pack's discharge curve doesn't match the model stored from the previous pack, the display corrects sharply when it hits a checkpoint — this looks like a jump or reset but is actually the firmware updating its estimate. It settles after one full conditioning cycle. If the jumping continues past the second full cycle, check that the pack terminals are making clean contact, as intermittent connection causes genuine voltage dropout under load and triggers repeated recalculation.

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

Sound Devices Mixpre 10T lI Replacement Battery, 14.4V, 6400mAh, 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