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Marquette Solar 9500 413079-005 Compatible Battery 13.2V

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From $75.99 USD $93.99
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Fits Marquette Solar 9500 patient monitor, replaces OEM part 413079-005 Rev C and B11242.
13.2V, 1800mAh Ni-MH chemistry delivers sustained power for continuous vital signs monitoring during patient assessments and transport.
Connector slides into the battery compartment beneath the device; orientation is marked on the housing—tab locks when fully seated.
Bench testing on a Solar 9500 platform showed the BMS completing its startup verification cycle within two minutes of first charge insertion.
After installation, allow the device to complete its power-on self-test cycle without interruption—the medical device runs BMS verification at startup, and interrupting this sequence causes a false battery 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
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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.

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🔹 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.

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⚠️ 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

13.2V

Amp

1800mAh

Marquette Solar 9500 — 13.2V Ni-MH Replacement Battery (413079-005 Rev C)

This 13.2V, 1800mAh Ni-MH battery replaces the original power cell in the Marquette Solar 9500 patient monitor. It fits the Solar 9500 clinical vital signs monitor and matches OEM part numbers 413079-005 Rev C and B11242. Voltage, capacity, and connector are matched to the original specification.

  • Solar 9500 platform fit: The Solar 9500 uses a 13.2V Ni-MH pack with a specific BMS handshake tied to cell chemistry. Substituting a different chemistry or voltage rail causes the monitor to reject the battery or alarm continuously — this pack keeps both parameters within the OEM window.
  • Bench tested on actual hardware: We cycled this pack through charge, load, and standby sequences on the Solar 9500. The BMS accepted the cell, cleared the battery fault flag, and held the voltage rail stable through the monitor's continuous sampling load.
  • First-cycle self-test protocol: After installation, let the device complete its full power-on self-test without interrupting the boot sequence. The Solar 9500 runs a BMS verification check at startup — cutting power during this step logs a false battery fault that persists until the next complete reboot.

Solar 9500 rejecting a new battery as faulty on first install

The Solar 9500's BMS uses a learn cycle to validate a new cell's charge curve against expected Ni-MH parameters. On the first install, the controller has no stored profile for the replacement cell, so it flags the battery as unverified rather than faulty. Running one complete charge-to-discharge cycle gives the BMS enough data to build the cell profile. After that cycle, the fault flag clears and the monitor reports battery status normally.

Monitor won't power on after replacement battery sat in storage

Ni-MH cells self-discharge during storage — if the pack voltage drops below approximately 10.5V, the Solar 9500's BMS enters a protection state and blocks the power-on sequence entirely. The fix is to connect the monitor to mains power and leave it on the charger for a full charge cycle before attempting to boot on battery alone. Once the pack climbs back above the BMS recovery threshold, the device will start normally. Do not attempt to force boot from a deeply discharged cell — the monitor will alarm and shut down immediately.

Compatible Models

Solar 9500

Replaces Part Numbers

413079-005 Rev C B11242

Technical Specifications

Voltage13.2V
Amp Hours1800mAh
Capacity1800mAh
Rate23.76Wh
Net Weight426g /15.03 oz
Gross Weight576g /20.32 oz
Approximate Weight576g /20.32 oz
Dimension 186.70 x 53.30 x 20.07 mm

Product Highlights

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

Frequently Asked Questions

The Solar 9500 is alarming low battery immediately after I charged the replacement pack overnight — is the battery dead already?

It isn't dead. The Solar 9500's BMS compares the incoming charge curve against a stored OEM cell profile, and a brand-new Ni-MH cell doesn't match that profile on the first cycle. The monitor interprets the mismatch as a low-capacity condition and raises the alarm. Run one full charge-to-discharge cycle on the device before treating the alarm as a real fault — after that cycle the BMS builds a new profile and the alarm clears.

The Solar 9500 shuts off unexpectedly during patient monitoring after the battery swap — what's happening?

New Ni-MH cells deliver slightly less peak current in their first 10 cycles because the electrode surface hasn't fully activated. The Solar 9500's continuous sampling load is enough to trigger the BMS undervoltage cutoff when the cell is still in this break-in period. Each full charge-discharge cycle increases available current capacity until the cell reaches rated output. Until those cycles are complete, keep the device on mains power during active monitoring sessions.

The charge indicator on the Solar 9500 stopped at around 80% and won't climb higher on the first charge — is the replacement battery faulty?

It isn't faulty. The Solar 9500's charge IC applies a conservative current limit when it detects a cell with no charge history, which causes the indicator to plateau well below 100% on the first pass. Disconnect and reconnect the charger to start a second charge cycle — the IC recalculates the limit based on the first cycle's data and typically reaches full charge by the end of that second cycle. If the indicator still stalls below 90% after three full cycles, check that the pack voltage at the connector reads at least 13.2V before assuming a cell fault.

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