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Rectangular lithium battery pack with black plastic casing and connector port

Estry

Estry 42MTB-E1 standard battery 6.4V 5000mAh

SKU CH-FAVD-H76VE MPN 42MTB-E1

6.4 V lithium replacement pack for Welch Allyn Spot Vital Signs monitors, 5000 mAh capacity with overcharge and short-circuit protection

  • Battery pack size1-pack
  • Battery typeLithium
  • Battery capacity5,000 mAh
  • Battery voltage rating6.4
  • Product typeBatteries
  • 4 V lithium chemistry powers compatible Spot Vital Signs monitors
  • 5000 mAh capacity supports extended clinical use between charges
  • Built-in overcharge, over-discharge, over-voltage and short-circuit protection safeguards battery life
  • Meets ISO 9001, RoHS, CE, UN 38.3 and MSDS certifications for safety and quality
  • Direct replacement for part numbers 105631 and 106656 across listed device models

Direct replacement battery

The Estry 42MTB-E1 is a 6.4V 5000mAh lithium pack built to match the original specifications for Welch Allyn Spot Vital Signs monitors and related 4200B-E1, 42M0B-E1, 42N0B-E1 and 42NTB-E1 models. It replaces part numbers 105631 and 106656 in a single-unit pack.

Voltage and capacity match

The pack delivers 6.4V and 5000mAh, matching the OEM ratings so the monitor’s fuel gauge and runtime calculations remain accurate. Overcharge, over-discharge, over-voltage and short-circuit protection circuits are integrated for safe operation.

Fits monitored devices directly

The battery slides into the existing compartment without adapters or cable changes, restoring portable power to compatible vital-signs monitors. It is not suitable for devices that require a different voltage, connector layout or higher capacity than 5000mAh.

How it compares

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

Price $48.99
Pricier than about 90% of the 10,440 comparable items (median $10.99).

Specifications

Product
Product typeBatteries
Power
Battery typeLithium
Battery capacity5,000 mAh
Battery voltage rating6.4
In the box
Battery pack size1-pack

Questions about this item

What does the 5000mAh rating mean for runtime in a Spot Vital Signs monitor?

The 5000mAh capacity at 6.4V provides 38.4Wh of energy, determining how long the monitor runs between charges depending on its power draw.

What connector standard does this 6.4V lithium pack use to interface with the 42MTB-E1 device?

It is built to the exact specifications of the original battery for the listed compatible models including 42MTB-E1 and 4200B-E1.

Will the 111.0 x 79.0 x 59.0mm dimensions fit the battery compartment of a 42N0B-E1 unit?

Yes, the pack matches the original form factor for all compatible models such as 42N0B-E1 and 42NTB-E1.

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