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Rectangular lithium battery pack with label, 213 by 58.51 by 22.22 millimetres

Estry

Estry Battery Replacement for Qube 91390 Patient 7500mAh 11.1V

SKU CH-YRWZ-8P5KM

Lithium replacement battery delivering 7500 mAh at 11.1 V for the Qube 91390 Patient monitor

  • TypeBatteries
  • Battery Pack1-pack
  • Battery TypeLithium
  • Battery Capacity7500mAh
  • Battery Voltage11.1
  • Replaces original Qube 91390 Patient battery with exact specifications
  • 7500mAh lithium capacity delivers extended runtime for medical devices
  • Built-in overcharge, over-discharge, over-voltage and short-circuit protection
  • Certified to ISO9001, RoHS, CE, UN38.3 and MSDS standards
  • Compact 213.11 x 58.51 x 22.22mm design weighs 615.0g

Direct Replacement for Qube 91390 Patient

This lithium battery pack replaces the original cell in the Qube 91390 Patient device. It matches the listed part numbers including NI2040XXL24, NI2040-SL29 and 146-0142-00 so technicians can swap it without adapter cables.

Thermal Behaviour and Power Draw

The pack delivers 11.1V with a rated capacity of 7500mAh and an energy rating of 86.58Wh. Lithium chemistry keeps self-discharge low during storage and the integrated protection circuit guards against overcharge, over-discharge, over-voltage and short circuit events.

Build Quality and Connector Implications

The unit measures 213.11 x 58.51 x 22.22mm and weighs 615.0g, fitting the existing battery compartment. Certifications include ISO9001, RoHS, CE, UN38.3 and MSDS. Buyers needing a different voltage or a higher capacity pack should verify compatibility before ordering.

Highlights

  • Replaces original Qube 91390 Patient battery with exact specifications
  • 7500mAh lithium capacity delivers extended runtime for medical devices
  • Built-in overcharge, over-discharge, over-voltage and short-circuit protection
  • Certified to ISO9001, RoHS, CE, UN38.3 and MSDS standards
  • Compact 213.11 x 58.51 x 22.22mm design weighs 615.0g

Specifications

TypeBatteries
Battery Pack1-pack
Battery TypeLithium
Battery Capacity7500mAh
Battery Voltage11.1

Questions about this item

How do I install the battery in the Qube 91390 Patient and what step is often missed?

Power off the device, open the battery compartment, align the 213.11 x 58.51 x 22.22 mm pack with the connectors, insert fully until it clicks, then secure the latch; the step often missed is verifying the latch is fully engaged before powering on.

What maintenance or replacement will this 7500mAh lithium pack need later?

No scheduled maintenance is required; replace the pack when run-time drops noticeably or the device reports a battery health warning, typically after several hundred charge cycles.

What limit appears first during sustained use of this 11.1V battery?

The pack’s over-temperature protection will trigger before deep discharge, cutting output to protect the cells when internal temperature exceeds the safety threshold.

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