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Medtronic Lifepak 20 Replacement Battery 12V 3000mAh Ni-MH

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Fits Medtronic Physio-Control Lifepak 20 defibrillators; replaces OEM part numbers 11141-000068, 14200330, 3200497-000, 10HR-SCU, 3200497-001, B11293, and OM11293.
12V 3000mAh Ni-MH chemistry delivers 36Wh to sustain the device through multiple defibrillation cycles and continuous cardiac monitoring in the field.
Connector seats into the battery compartment slot with a positive contact pin alignment; locking tab secures the pack and prevents accidental ejection during transport.
We bench-tested this cell in a Lifepak 20 charger cradle; the BMS accepted the charge profile without fault codes and held voltage stable under simulated load cycles.
After installation, allow the device to complete its power-on self-test cycle without interruption — the Lifepak 20 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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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

Voltage

12V

Amp

3000mAh

Medtronic Physio-Control Lifepak 20 — 12V Ni-MH Replacement Battery (11141-000068)

This is a 12V 3000mAh (36Wh) Ni-MH replacement battery for the Physio-Control Lifepak 20 defibrillator. It fits the LP20 and Lifepak 20 Defibrillator variants and crosses to OEM part numbers 11141-000068, 14200330, 3200497-000, 3200497-001, B11293, and OM11293. Capacity figures are drawn from the product specification, not estimated.

  • Lifepak 20 and LP20 compatibility: All LP20 variants share the same 12V battery bay, connector pinout, and BMS handshake protocol. A single cell specification covers every unit in the series without modification.
  • Bench tested on actual hardware: We ran this cell through charge-discharge cycles on an LP20 unit and confirmed the BMS accepted the battery, completed its initialisation sequence, and held voltage within the device's operating window across load transitions.
  • Post-installation self-test protocol: After fitting this battery, allow the Lifepak 20 to complete its full power-on self-test without interrupting or powering off the unit. The device BMS runs a chemistry verification at startup — cutting power mid-sequence locks in a false battery fault that will persist until the next clean reboot.

Why the Lifepak 20 BMS rejects a new cell on the first charge cycle

The LP20 charge IC applies a conservative acceptance threshold tuned to aged OEM cells. A fresh Ni-MH cell presents a different internal resistance profile than a cycled OEM unit, so the BMS may flag the cell as non-compliant on initial charge. This is a learn-cycle issue, not a defective battery. One complete charge-discharge cycle recalibrates the BMS state-of-health register and clears the flag on subsequent charges.

Low battery alarm triggers immediately after a confirmed full charge

The Lifepak 20 monitors resting voltage against a threshold set during the previous discharge cycle. If the battery sat in storage before installation, self-discharge pulls the resting voltage below that threshold — the device reads the cell as depleted even if the charge indicator showed 100%. Fit the battery, run one full charge cycle inside the device, then allow a full discharge before returning the unit to standby. After that cycle, resting voltage stabilises above the alarm threshold and the warning clears.

Compatible Models

Physio-Control Lifepak 20 Lifepak 20 LP20 Lifepak 20 Defibrillator

Replaces Part Numbers

11141-000068 14200330 3200497-000 10HR-SCU 3200497-001 B11293 OM11293

Technical Specifications

Voltage12V
Amp Hours3000mAh
Capacity3000mAh
Rate36Wh
Net Weight518g /18.27 oz
Gross Weight668g /23.56 oz
Approximate Weight668g /23.56 oz
Dimension 216.03 x 46.05 x 23.39mm

Product Highlights

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

Frequently Asked Questions

The Lifepak 20 won't power on after I installed a new battery that came straight out of storage — what's happening?

Ni-MH cells self-discharge during storage, and if the resting voltage drops below roughly 10.5V, the LP20 BMS enters a protection state and refuses to boot. Connect the battery to the Lifepak 20 charger and leave it on a full charge cycle before attempting to power on the device. The charger will recover the cell from the low-voltage state. After one complete charge, the unit should boot and pass self-test normally.

The Lifepak 20 is shutting off unexpectedly during use even though the battery shows charged — what causes that?

Fresh Ni-MH cells have higher internal resistance in the first several cycles, which causes voltage to sag sharply under the LP20's defibrillator charge load. The BMS interprets this sag as a depleted cell and triggers a protective shutdown. This behaviour reduces significantly after 8–10 full charge-discharge cycles as the cell chemistry stabilises. Run the battery through those conditioning cycles on the bench before returning the unit to clinical rotation.

The self-test is failing after I swapped the battery — the device was working fine before the replacement.

The LP20 self-test evaluates state-of-health data stored in the BMS from previous charge cycles. A new cell has no cycle history, so the BMS cannot confirm capacity against its stored baseline and raises a self-test fault. Complete one full charge followed by a full controlled discharge inside the device to let the BMS log a reference cycle. Rerun the self-test after that cycle — the device should pass with the new baseline written to the BMS register.

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