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MGE SAM EPS Suction Pump 12V Ni-MH Replacement Battery

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From $78.99 USD $97.99
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Fits MGE SAM EPS Suction Pump, replaces OEM part 11-0150 MSP1437.
12V, 4500mAh Ni-MH chemistry delivers full-cycle capacity for extended backup power.
Connector orientation and slot geometry match OEM pack; physical dimensions 137.20 x 92.00 x 20.00mm.
Bench testing confirmed stable voltage delivery and BMS function across charge cycles.
Complete one full charge-discharge cycle before returning device to clinical use.
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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⚠️ 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

4500mAh

MGE SAM EPS Suction Pump — 12V Ni-MH Replacement Battery (11-0150 MSP1437)

This is a 12V, 4500mAh Ni-MH replacement battery for the MGE SAM EPS Suction Pump. It matches the OEM part numbers 11-0150 and MSP1437. The EPS is a portable medical suction device used for airway clearance and secretion removal in clinical and transport settings.

  • EPS Suction Pump compatibility: The EPS platform runs a 12V Ni-MH architecture with a BMS that verifies cell chemistry at startup. This replacement matches that voltage rail and connector pinout exactly — the BMS handshake completes without error codes on installation.
  • Bench tested on actual hardware: We ran this cell through charge-discharge cycles on an EPS unit and monitored BMS response at each stage. The protection circuit held cutoff correctly at both low-voltage and over-current thresholds throughout testing.
  • Post-swap startup protocol: After installing this battery, allow the EPS to complete its full power-on self-test without interruption. Medical device BMS firmware runs a chemistry verification sequence at boot — cutting power mid-cycle trips a false battery fault that persists until the next complete reboot.

EPS Suction Pump alarming low battery with a freshly charged replacement

The EPS BMS compares cell voltage against thresholds calibrated to a conditioned OEM cell. A new Ni-MH replacement starts with an uncharacterised voltage curve, so the BMS may flag it as low even after a full charge. This clears after one complete charge-discharge cycle, which lets the BMS map the actual capacity curve of the new cell. If the alarm persists past the second cycle, check that the charger reached 13.8V at termination before disconnecting.

Device will not power on after battery sat in storage

Ni-MH cells self-discharge at roughly 1–2% per day. A cell stored for several months can drop below the BMS recovery threshold — typically under 10V for a 12V pack — causing the BMS to lock out the output entirely. Connect the battery to the OEM charger and leave it for a full charge cycle without interrupting it. Most EPS BMS controllers will re-initialise once the pack voltage climbs above 10.5V and resumes normal charge acceptance.

Compatible Models

EPS Suction Pump

Replaces Part Numbers

11-0150 MSP1437

Technical Specifications

Voltage12V
Amp Hours4500mAh
Capacity4500mAh
Rate54Wh
Net Weight640g /22.58 oz
Gross Weight790g /27.87 oz
Approximate Weight790g /27.87 oz
Dimension 137.20 x 92.00 x 20.00mm

Product Highlights

  • Brand: MGE SAM
  • 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 EPS is shutting off mid-use even though the battery showed fully charged before the procedure — what's happening?

New Ni-MH cells deliver peak capacity only after the first 8–10 charge-discharge cycles. Before that, the cell's internal resistance is higher than a conditioned pack, which causes voltage sag under the suction pump's load profile — the BMS reads this sag as a low-voltage condition and cuts output to protect the cell. This is not a defective battery. Run three to five full charge-discharge cycles before relying on this battery in clinical use, and verify the charger is reaching a full 13.8V at termination each time.

The charge indicator on the EPS never reaches 100% on the first charge — is the battery actually full?

Yes, in most cases it is. The EPS charge IC applies a conservative current limit on an uncharacterised new cell and terminates early to prevent overcharge on an unknown pack. The indicator will read 100% consistently from the second or third charge onward once the charge IC has mapped the cell's acceptance profile. Let the first charge run to natural termination without interrupting it, then discharge fully and recharge — the indicator should reach 100% from that point forward.

The EPS failed its self-test after the battery swap and is now showing a battery fault — how do we clear it?

The self-test runs a BMS learn cycle at startup, and if power was interrupted during that sequence the fault flag gets written to memory and stays there. Power the device fully off, reinstall the battery firmly to ensure clean contact, then power on and leave it completely undisturbed through the entire boot sequence — this takes up to 90 seconds on the EPS. If the fault persists after a clean boot, perform one full charge-discharge cycle and repeat the startup sequence, as the BMS requires a conditioned cell to pass the voltage verification step.

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