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Rectangular lithium-ion battery pack, dark casing with label showing 6.4V 6000mAh 38.40Wh

MPF Products

MPF Products 6.4V 6000mAh 38.40Wh Li-ion Battery Pack 105631 106656

SKU CH-9RNH-YWR9C

6.4 V 6000 mAh lithium-ion pack replaces part numbers 105631 and 106656 for Welch-Allyn Spot Vital Signs monitors

  • Battery typeLithium Ion
  • Compatible with Welch-Allyn Spot Vital Signs monitors
  • Replaces original part numbers 105631 and 106656
  • 4V 6000mAh lithium-ion rechargeable battery pack
  • 40Wh capacity for extended monitoring time
  • New condition, ready for immediate clinical use

Compatible Vital Signs Monitor Battery

This lithium-ion battery pack replaces Welch-Allyn part numbers 105631 and 106656 for Spot Vital Signs Monitors. It fits models 42M0B-E1, 42MTB-E1, 42N0B-E1, 42NTB-E1, 4200B-E1 and 420TB-E1. The pack delivers 6.4 volts, 6000mAh capacity and 38.40Wh of energy for medical monitoring equipment.

Replaces Original Welch-Allyn Cells

The pack directly substitutes the factory batteries listed above when runtime drops or charging fails. A swap is justified when the original cells no longer hold sufficient charge for a full shift or when the monitor reports a battery fault. It restores the specified voltage and capacity without modification to the device.

Simple Pack Swap With Basic Precautions

Installation requires opening the monitor battery compartment, disconnecting the old pack and connecting the new one using the existing connector. Common issues include reversed polarity if the plug is forced, debris blocking the latch, or failing to seat the pack fully so the monitor does not recognise it. Observe electrostatic precautions during the swap.

How it compares

Measured against everything we stock in Household Batteries & Chargers, at today’s prices. Recalculated every night.

Price $25.99
Pricier than about 82% of the 10,440 comparable items (median $10.99).

Specifications

Power
Battery typeLithium Ion

Questions about this item

What connector and voltage does the 105631 pack use to fit the Spot Vital Signs Monitor?

The pack is a 6.4 V lithium-ion unit built to match the original 105631 and 106656 form factor, so it slides into the monitor's battery compartment without adapters.

Which step do installers often miss when fitting the 106656 replacement into a 42MTB-E1 monitor?

After inserting the pack, the monitor must be powered on and left on charge for a full cycle so the fuel gauge relearns the new capacity; skipping this leaves the runtime indicator inaccurate.

When should the 38.40 Wh pack be swapped out in a 4200B-E1 device?

Replace the pack when the monitor no longer holds a full shift's charge or the battery-status icon shows a permanent fault, typically after several hundred charge cycles in clinical use.

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