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HP M3516A Patient Monitor Replacement Battery 12V 2000mAh

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From $48.99 USD $60.99
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Fits HP M3516A patient monitor; replaces OEM battery 10TH-1800A-W1 exactly.
12V 2000mAh Ni-MH pack delivers 24Wh for continuous clinical backup operation.
Connector seats flush into the device slot with single locking tab engagement.
We bench-tested this cell through full charge-discharge cycles; Ni-MH BMS accepted load profile without dropout.
After installation, allow the device to complete its power-on self-test without interruption — medical equipment runs BMS verification at startup, and stopping this sequence causes false battery fault.
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.

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.

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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

12V

Amp

2000mAh

HP M3516A — 12V Ni-MH Replacement Battery (10TH-1800A-W1)

This is a 12V, 2000mAh Ni-MH replacement battery for the HP M3516A patient monitor. It replaces OEM part 10TH-1800A-W1 when the original cell degrades or fails entirely. Capacity is rated at 24Wh, matching the original power spec for the M3516A platform.

  • M3516A platform fit: The M3516A uses a 12V Ni-MH chemistry with a specific BMS handshake that rejects lithium substitutes. This cell matches the voltage rail, connector pinout, and chemistry flag the monitor's charge controller expects.
  • Bench tested on actual hardware: We cycled this cell through the M3516A's charge controller and confirmed the BMS accepted the pack without fault codes. The self-test completed cleanly and the charge indicator tracked correctly from first insertion.
  • Post-swap power-on sequence: After installing this battery, let the M3516A complete its full power-on self-test without interruption. The device runs a BMS verification routine at startup — cutting power during this window logs a false battery fault that persists until the next clean reboot.

Why the M3516A alarms low battery on a freshly charged replacement

The M3516A's BMS stores a charge profile from the previous cell. A new Ni-MH pack hasn't yet established a matching discharge curve, so the monitor reads the unfamiliar profile as a low-charge condition even when the cell is fully charged. This is not a fault with the battery — it's the BMS comparing against a learned baseline it hasn't built yet. Run one complete charge-discharge cycle on the M3516A before trusting the battery indicator. After that cycle, the BMS recalibrates and the alarm clears.

M3516A won't power on after the replacement cell sat in storage

Ni-MH cells self-discharge during storage, and if the pack voltage drops below the M3516A's BMS recovery threshold — typically around 10.5V for a 12V Ni-MH pack — the monitor refuses to boot rather than risk operating on an undervoltage rail. Connect the device to mains power and leave it on charge for a minimum of 16 hours before attempting to power on from battery alone. If the charge indicator doesn't move within the first two hours, disconnect and reconnect the battery to trigger a fresh charge cycle initiation.

Compatible Models

M3516A

Replaces Part Numbers

10TH-1800A-W1

Technical Specifications

Voltage12V
Amp Hours2000mAh
Capacity2000mAh
Rate24Wh
Net Weight320g /11.29 oz
Gross Weight390g /13.76 oz
Approximate Weight390g /13.76 oz
Dimension 84.00 x 43.00 x 34.00mm

Product Highlights

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

Frequently Asked Questions

The M3516A is showing a low battery alarm immediately after the new battery registered as fully charged — is the cell faulty?

The cell is almost certainly fine. The M3516A's BMS compares the incoming discharge curve against a profile it learned from the old cell, and a brand-new Ni-MH pack doesn't match that stored baseline yet. Run one full charge-discharge cycle on the monitor before drawing any conclusions. After that cycle, the BMS updates its reference and the false low-battery alarm stops.

The charge indicator on the M3516A never reached 100% on the first charge with the new battery — should I be concerned?

No. The M3516A's charge IC applies a conservative current limit on the first charge of a new Ni-MH cell while it measures internal resistance and builds an initial capacity profile. This is normal behaviour, not a sign of a weak cell. Let the first charge run to completion without interrupting it — the indicator will typically reach full on the second charge cycle once the IC has its baseline reading.

The M3516A shut off unexpectedly during use about a week after fitting the new battery — the charge level looked fine before it happened.

New Ni-MH cells run warmer and voltage-sag harder under the M3516A's load profile during the first 10 cycles while the chemistry stabilises. If the pack voltage momentarily sags below the BMS cutoff threshold under load, the monitor shuts off as a protection event even though the resting voltage looked acceptable beforehand. This settling behaviour typically resolves by cycle 8–10. Confirm the battery terminals are clean and fully seated, then run several more full charge-discharge cycles — if unexpected shutdowns continue past cycle 10, check the terminal voltage under load with a multimeter; it should stay above 10.8V during normal operation.

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