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Black rectangular lithium-ion battery pack with connector port

KingSener

KingSener LP-PBXMAXI1S2P laptop battery 4350 mAh 3.7V

SKU CH-ZRPW-QW6V5 MPN LP-PBXMAXI1S2P

Replacement Li-ion battery rated 4350 mAh at 3.7 V for Masimo Radical-7 Pulse CO-Oximeter models 27057, 25950 and 4676

  • Battery voltage rating3.7 V
  • Battery capacity4,350 mAh
  • 4350 mAh capacity delivers extended runtime for medical monitoring
  • 7 V Li-ion chemistry provides stable power output
  • Direct replacement for Masimo Radical-7 part numbers 27057, 25950, 4676
  • Brand-new cells with full design capacity — no inflated ratings
  • 100 % compatible fit matches original battery dimensions exactly

Replacement Battery for Masimo Radical-7

The KingSener LP-PBXMAXI1S2P is a rechargeable lithium-ion battery built for the Masimo Radical-7 Pulse CO-Oximeter. It delivers a 4350 mAh capacity at 3.7V and matches the original part numbers 27057, 25950 and 4676. The pack is supplied new and uses high-quality cells with a reliable PCB for stable output.

Direct Fit with Simple Break-In

Installation is a direct swap because the battery shares the same dimensions as the original unit. The supplier recommends two or three full charge and discharge cycles at low current to condition the cells. Avoid leaving the charger connected during use, keep the pack away from heat and humidity, and store it above 80% charge if removed for long periods.

For Biomedical Teams Maintaining Radical-7 Units

This battery suits technicians who need a drop-in replacement for the Masimo Radical-7 Pulse CO-Oximeter. It is not intended for other medical monitors, different Masimo models, or any non-medical laptop or consumer device. Buyers who require a different voltage, capacity or form factor should look elsewhere.

How it compares

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

Price $51.99
Pricier than about 83% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameKingSener
Model nameLP-PBXMASI1S2P
Part number27057
Power
Battery voltage rating3.7 V
Battery capacity4,350 mAh

Questions about this item

How can I verify the LP-PBXMAXI1S2P battery is working correctly after installation?

The battery should hold a full charge at 4350 mAh and 3.7V, powering the Masimo Radical-7 Pulse CO-Oximeter for the expected runtime without unexpected shutdowns.

What comes with the LP-PBXMAXI1S2P battery and what must I purchase separately?

The package includes the KingSener LP-PBXMAXI1S2P replacement battery only; no tools, cables, or charging adapters are included and must be sourced separately.

Which KingSener battery version matches my Masimo Radical-7 device?

Choose the LP-PBXMAXI1S2P model with part number 27057, rated at 4350 mAh and 3.7V, which also replaces original part numbers 25950 and 4676.

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