Our Cookie Policy

Cookie Information

This website uses cookies to track and improve the visitor experience.

To learn more,
please click here.

Accutronics - An Ultralife Company
  1. Home >
  2. CMX Series Batteries
  3. >
  4. 28.8V 3.2Ah (92.2Wh) Lithium Ion Battery (15A capable)
Brand Image for 28.8V 3.2Ah (92.2Wh) Lithium Ion Battery (15A capable)


28.8V 3.2Ah (92.2Wh) Lithium Ion Battery (15A capable)

The CMX820P is a high power 28.8V 3.2Ah Lithium Ion Smart battery with a stored energy of 92.2Wh. It is designed to meet the demanding needs of medical device manufacturers and comes equipped with a level of technology and regulatory compliance that will provide the next generation of medical devices with a real competitive edge.

The latest Nickel-Manganese-Colbalt Lithium ion cell technology within the CMX820P allows it to discharge continuously at up to 15A (or 330W continuous) making it ideal for high power transportable devices - either as a primary power source or as a redundant backup supply.

The industry standard smart battery interface on the CMX820P allows a host medical device to ascertain pertinent information such as state-of-charge, remaining runtime, cycle count and serial number, all of which allow the device to provide useful real-time data to the user.

When connected to a compatible smart charger the CMX820P communicates its charging voltage and current requirements which are then provided by the charger - this system increases both safety and battery lifetime as the battery remains in control of its charging regime.

A clear 5-bar LCD display on the rear of the battery provides a quick visual capacity reference for the user so they can decide which batteries need charging and which can be used.

The CMX820P meets the requirements of IEC62133:2012 (Safety), UL62133 (Safety) and UN38.3 (transportation), meaning that that it can be quickly and easily designed into the next generation of medical devices with minimal cost to the OEM.

The CMX820P ships with Entellion branding, white casing and a standard software set-up. All of these can be customised to suit a particular OEM requirement - please contact us to discuss.

Available to Order

Product       Qty
Product 1 - 11 12 - 23  

Embeddable Single Channel Charger for CMX series batteries


CMX Series battery bench test PCB

EVAL009 £252.50   Add

Texas Instruments EV2300 Evaluation Module

Part number: CMX820P
Chemistry: Rechargeable Lithium Ion
Cell Quantity: 16
Cell Array (Series / Parallel): 8S/2P
Voltage (nominal): 28.8V
Capacity (nominal): 3.2Ah
Energy (nominal): 92.2Wh
Discharge current (maximum): 15.0A
Discharge power (maximum): 330.0W
Length (maximum): 171.0mm
Width (maximum): 85.5mm
Height (maximum): 48.5mm
Recommended cavity cross section: Contact us
Weight (typical): 0.88Kg
Colour: White
Visual state of charge indicator: Yes (5 bar LCD)
Communications: SMBus (System Management Bus)
Data system: SBS (Smart Battery Specification)
CE compliant: Yes
UN 38.3 (transportation) certified: Yes
UL 2054 (safety) certified: No
IEC 62133 (safety) certified?: Yes (2nd edition)
UL 62133 (safety) certified?: Yes

◾ Latest Lithium Ion technology
◾ CMX 'P' series - optimised for capacity and power
◾ 15A or 330W continuous discharge capability
◾ SBS Rev1.1 compliant, impedance tracking fuel gauge
◾ Active protection circuitry (OV, UV, OC, SC + 2nd OV)
◾ LCD visual state of charge bar graph indicator
◾ Redundant passive over-current protection
◾ D-Sub 7W2S mixed power/signal connector
◾ Tough, easily cleaned plastic casing
◾ IEC 62133:2012 and UL 62133 (safety) compliant
◾ UN ST/SG/AC.10/11/Rev5 (transportation) compliant
◾ 2004/108/EC (EMC/ESD) compliant

  • Common applications include...
  • ◾ Acute ventilators
  • ◾ Dialysis machines
  • ◾ Anaesthesia workstations
  • ◾ Intra-oral scanners
  • ◾ Security devices
  • ◾ Robots & Robotic applications
CMX820P data sheet 06/2016 CMX820P data sheet 06/2016
CMX820P technical specification Rev2.0 CMX820P technical specification Rev2.0
CMX820P UN 38.3 Test Summary Issue 1 CMX820P UN 38.3 Test Summary Issue 1
CMX820P IEC62133:2012 CB certificate CMX820P IEC62133:2012 CB certificate
CMX820P UL62133 certificate CMX820P UL62133 certificate
CMX820P safety data sheet V2 130221 CMX820P safety data sheet V2 130221
CMX820P UN transportation certificate CMX820P UN transportation certificate
Brochure - Batteries for Robotics Brochure - Batteries for Robotics - Innovative power solutions for stationary & mobile Robots from Accutronics & Ultralife
Product 1 - 11 12 - 23  
CMX810M     View

28.8V 2.55Ah (73.4Wh) Lithium Ion Battery (10A capable)


    Get the latest news from Accutronics and our parent company Ultralife Corporation direct to your inbox

    - Click Here
  2. Credit Card Batteries

    The CC1150, CC2300 and CC3800 credit card batteries allow device designers to integrate a Lithium Ion battery into the next generation of devices with minimal effort and cost

    Click Here
  3. Intelligent Power Vault

    The Intelligent Power Vault (IPV) is a multi-battery hot-swappable power source

    Click Here