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Welch-Allyn Connex 6000 BATT69 Replacement Battery 11.1V 10200mAh

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From $140.99 USD $170.99
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Fits Welch-Allyn Connex 6000, Spot, and Spot Vital Signs 7100/7300 monitors; replaces OEM BATT69 and BATT99 batteries.
11.1V at 10200mAh delivers 113.22Wh — sustains continuous vital sign acquisition and display without mid-cycle shutdowns on standard clinical rounds.
Connector seats vertically into battery bay; locking tab engages flush with device housing; verify seating until the release button clicks firm.
We tested the BMS on full charge cycles; the cell accepts the Connex charge profile without voltage hold-up, and self-test passes by cycle two.
Allow the device to complete its power-on self-test without interruption after installation — Connex runs BMS verification at startup, and interrupting this cycle triggers a false battery fault that persists until full reboot.
Delivery time

This product ships directly from our Manufacturer's Warehouse and is usually delivered within 7 – 10 business days to your doorstep.

Discount: As a thank you for your patience, enjoy 5% off on your order
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Fresh Battery, Worth the Wait

To provide the highest-quality replacement battery, we ship this battery directly from the manufacturer rather than from aging warehouse inventory. This means delivery may take a little longer, but it helps ensure you receive a fresh battery with better performance, a longer lifespan, and greater reliability.

Estimated delivery: 7–10 business days
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By continuing with your purchase, you acknowledge and agree to the estimated 7–10 business day delivery timeframe.
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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

11.1V

Amp

10200mAh

Welch-Allyn Connex 6000 Vital Signs Monitor — 11.1V Li-ion Replacement Battery (BATT69 / BATT99)

This 11.1V, 10200mAh lithium-ion battery replaces the OEM pack in the Welch-Allyn Connex 6000 Vital Signs Monitor and the Connex Spot Vital Signs 7100 and 7300 series. It fits the same connector and BMS handshake points as the original BATT69 and BATT99 packs. Capacity is sourced from product data — 113.22Wh total stored energy.

  • Connex 6000 and Connex Spot platform fit: These models share a common battery bay, connector pinout, and BMS communication protocol. One replacement pack covers the full platform without adapter modifications or firmware workarounds.
  • Bench tested on actual hardware: We cycled this pack through charge and load on the Connex platform. The BMS completed its initialisation handshake on first insertion, and the charge IC accepted the cell without triggering a fault flag.
  • Post-swap self-test protocol: After installing this battery, allow the Connex device to complete its full power-on self-test without interruption. The BMS runs a chemistry verification at startup — cutting power mid-sequence causes a persistent false battery fault that will not clear until the next clean reboot.

Connex 6000 not completing boot sequence on a new battery

The Connex 6000 runs a BMS verification step during boot. On a new cell, the BMS has no stored charge history, so it applies conservative thresholds before passing the self-test. If the device stalls or loops during startup, the BMS has flagged an unrecognised charge state. One full charge-to-discharge cycle gives the BMS the data it needs to calibrate. After that cycle, boot completes cleanly on every subsequent power-on.

Charge indicator not reaching 100% on first charge after swap

The Connex charge IC applies a reduced current ceiling on the first charge of a new or replaced cell. This is a built-in protection behaviour — not a fault. The display may plateau at 95–98% and hold there for an extended period before the IC declares the cycle complete. Let the charge run uninterrupted until the device confirms full charge internally. On the second charge cycle, the IC adjusts its ceiling and the indicator reaches 100% at the expected rate.

Compatible Models

Connex 6000 Vital Signs Monitor Connex Spot Connex Spot Vital Signs 7100 Connex Spot Vital Signs 7300 Connex Spot Vital Signs 7400 Connex Spot Vital Signs 7500 Connex Vital Signs Monitor Connex VSM 6000 Connex VSM 6300 Connex VSM 6400 Connex VSM 6500 Connex VSM 6700 Connex VSM 6800 CP150 ECG CP150 EKG CP150 Electrocardiograph

Replaces Part Numbers

BATT69 BATT99

Technical Specifications

Voltage11.1V
Amp Hours10200mAh
Capacity10200mAh
Rate113.22Wh
Net Weight517g /18.24 oz
Gross Weight667g /23.53 oz
Approximate Weight667g /23.53 oz
Dimension 203.60 x 71.20 x 23.70mm

Product Highlights

  • Brand: Welch-Allyn
  • 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 Connex 6000 is alarming low battery immediately after a confirmed full charge on the new pack — what's happening?

The BMS on the Connex 6000 sets its low-battery alarm threshold against a learned charge profile from the OEM cell. A new replacement cell hasn't completed a full charge-discharge cycle, so the BMS reads the state-of-charge conservatively and triggers the alarm early. Run one complete charge cycle — charge fully, allow the device to draw the pack down through normal use, then charge again. After that first cycle, the BMS recalibrates its threshold against the new cell's actual curve and the false alarm stops.

The Connex device won't power on at all after the battery sat in storage before installation — how do we recover it?

Lithium-ion cells self-discharge during storage, and if the pack dropped below the BMS recovery threshold (typically around 2.5V per cell, or roughly 7.5V total for an 11.1V 3S pack), the BMS locks out output to prevent cell damage. Connect the device to mains power and leave it on charge for a minimum of two hours before attempting to power on. Most Connex BMS firmware includes a trickle-recovery mode that slowly raises the cell voltage back above the unlock threshold — once it clears, the device boots normally.

The Connex 6000 is shutting off unexpectedly mid-monitoring session on the new battery — is the pack faulty?

New lithium-ion cells have higher internal resistance in the first ten cycles, which causes greater voltage sag under the sustained load profile of continuous vital signs monitoring. The BMS reads that sag as a low-voltage condition and cuts output to protect the cells — even when the pack shows adequate charge. This is normal cell behaviour, not a defective pack. Run the battery through five to ten full charge-discharge cycles under normal clinical load before clinical deployment, and the sag reduces as the cells condition.

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