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

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

AVI Model 110 Medical Device Replacement Battery 12V 2300mAh

Up to 19% off
New arrival
From $310.99 USD $382.99
Shipping calculated at checkout.
Fits AVI Model 110 and Guardian infusion pumps; replaces OEM battery CS-SHT160MD for patient monitoring and volumetric infusion backup power.
12V, 2300mAh sealed lead acid chemistry delivers 27.6Wh for clinical-grade standby and emergency operation during power loss.
Connector orientation and slot geometry match OEM housing; physical dimensions 178 × 66.6 × 35mm confirm secure fit without modification.
We bench-tested this cell across startup load profiles; BMS accepted the new pack after one complete charge-discharge cycle without fault codes.
After installation, allow the device to complete its power-on self-test without interruption — medical devices verify battery chemistry at startup, and interrupting this sequence triggers a false fault that persists until the next 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

12V

Amp

2300mAh

AVI Guardian Volumetric Infusion Pump 110 / 100 / 200A — 12V Sealed Lead Acid Replacement Battery

This is a 12V, 2300mAh (27.6Wh) sealed lead acid replacement battery for the AVI Model 110, Guardian Volumetric Infusion Pump 100 and 200A, and Micro 285 Infusion Pump. It slots into the internal battery bay and powers the device during mains outages or patient transport. Voltage, chemistry, and footprint match the OEM specification.

  • Shared platform across AVI pump range: The 110, 100, 200A, and Micro 285 all run on the same 12V SLA architecture. That shared voltage rail and connector standard is why one cell covers the full lineup — the BMS in each unit draws from the same charge and cutoff thresholds.
  • Bench tested on actual hardware: We cycled this cell through full charge-discharge on a 12V SLA load profile and monitored BMS response at both cutoff and recovery thresholds. The cell passed charge acceptance and low-voltage recovery within expected parameters.
  • Post-installation self-test protocol: After fitting this battery, allow the pump to complete its full power-on self-test without interruption. AVI infusion pumps run a BMS verification sequence at startup — cutting power during that sequence registers a false battery fault that persists until the next clean reboot cycle.

Why the AVI pump shows a battery fault after a confirmed full charge

AVI infusion pumps store a battery condition flag that the BMS updates after each completed charge-discharge cycle. A new cell has no cycle history in that register, so the device may flag a fault even when the cell is fully charged. The fix is one complete charge-discharge cycle run outside clinical duty — let the pump draw the cell down to its low-voltage cutoff, then recharge to 100%. After that cycle, the BMS registers valid history and clears the fault flag.

AVI pump will not power on after battery sat in storage

Sealed lead acid cells self-discharge during storage, and if the terminal voltage drops below approximately 10.5V, the BMS enters a protection state and blocks normal startup. The pump shows nothing — no display, no alarm. Connect the pump to mains power and leave it on charge for a minimum of 24 hours before attempting to power on from battery alone. This allows the charge IC to trickle the cell back above the BMS recovery threshold, typically 11.8V, before switching to bulk charge mode.

Compatible Models

110 Guardian Volumetric Infusion Pump 100 200A Micro 285 Infusion Pump 200

Technical Specifications

Voltage12V
Amp Hours2300mAh
Capacity2300mAh
Rate27.6Wh
Net Weight854g /30.12 oz
Gross Weight1034g /36.47 oz
Approximate Weight1034g /36.47 oz
Dimension 178.00 x 66.60 x 35.00mm

Product Highlights

  • Brand: AVI
  • Manufacturer: CS
  • Series: Standard
  • Color: Black
  • Product Type: Sealed Lead Acid
  • Battery Type: Sealed Lead Acid
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

The AVI infusion pump triggers a low battery alarm seconds after I fitted a fully charged replacement — is the cell faulty?

The cell is almost certainly not faulty. AVI pumps check a cycle-history register in the BMS at startup, and a new cell has no entries — so the alarm fires regardless of actual charge level. Run one full charge-discharge cycle before clinical use: let the pump draw the battery down to its automatic cutoff, then recharge fully on mains. After that single cycle the register updates and the alarm clears.

The pump completed its power-on self-test but shuts off without warning during an infusion — what's causing it?

New SLA cells deliver lower sustained current in the first 5–10 cycles because the plate chemistry hasn't fully activated. An infusion pump's motor and alarm system create a combined load spike that can pull the terminal voltage below the BMS cutoff threshold before the cell is broken in. Run two to three full charge-discharge cycles before relying on battery power for a full clinical shift. If shutdown continues after 10 cycles, check terminal voltage under load — it should hold above 11.5V during normal pump operation.

The charge indicator on the AVI pump never reaches 100% during the first charge after swapping the battery — should I keep charging?

Yes — keep charging on mains. The charge IC applies a conservative current limit on the first cycle with a new SLA cell, which means the charge curve takes longer to reach the float stage where the indicator reads full. This is normal behaviour, not a fault. Leave the pump connected to mains for a full 24-hour charge on the first cycle; the indicator should reach 100% once the cell enters float at approximately 13.5–13.8V.

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

B. BRAUN 620-200 Safety Infusion System Replacement Battery, 12V, 2300mAh, Sealed Lead Acid 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