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. 14.4V 5.1Ah (73.4Wh) Lithium Ion Battery (20A capable)
Brand Image for 14.4V 5.1Ah (73.4Wh) Lithium Ion Battery (20A capable)


14.4V 5.1Ah (73.4Wh) Lithium Ion Battery (20A capable)

Status: 'Pre-Production'

The CMX420M is in Pre-Production. Please contact us for sample availability.

The new CMX420M is a high power 14.4V 5.1Ah Lithium Ion Smart battery with a stored energy of 73.4Wh. 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 CMX420M allows it to discharge continuously at up to 20A (or 220W 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 CMX420M 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 CMX420M 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 CMX420M meets the requirements of IEC62133-2 (pending), UL62133 (pending) and UN38.3 (pending), meaning that that it can be quickly and easily designed into the next generation of medical devices with minimal cost to the OEM.

The CMX420M 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

Chemistry: Rechargeable Lithium Ion
Voltage (nominal): 14.4V
Capacity (nominal): 5.1Ah
Energy (nominal): 73.4Wh
Discharge current (maximum): 20.0A
Discharge power (maximum): 220.0W
Length (maximum): 171.0mm
Width (maximum): 85.5mm
Height (maximum): 28.5mm
Recommended cavity cross section: Contact us
Weight (typical): 0.53Kg
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 'M' series - optimised for capacity and power
◾ 20A or 220W 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

  • ◾ Portable and transportable medical devices.
  • ◾ Robots & Robotic applications
CMX420M data sheet 06/2016 CMX420M data sheet 06/2016
Batteries for Robotics Brochure Batteries for Robotics Brochure - Innovative power solutions for stationary & mobile Robots from Accutronics & Ultralife
Product 1 - 11 12 - 23  
CMX820P     View

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

CMX810M     View

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


    Be one of the first to get the very latest news from Accutronics direct to 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
  • Need a #battery specific #subcontract #manufacturer? We can expertly translate your #batterydesign into a final re… https://t.co/eUVUpJWCl9
  • Untethered #subsea operations that are advancing the industry require #batteries that are safer, smarter, smaller,… https://t.co/h4q0VyUs3O
  • #9V #batteries can be used in #beacons and emergency location transmitters, #securitysensors, #sonobuoy's and much… https://t.co/WaZWn1rIGS
  • #Batteries have played a vital role in allowing #SurgicalRobots to become accepted by #surgeons & patients alike.… https://t.co/C0TaUODxOw
  • For remote #healthmonitoring devices that are constantly using a low voltage, the stability offered by #Lithium… https://t.co/ACAnW4esXm
  • @ravicr_ind Thanks for getting back to us, it's sales@accutronics.co.uk
  • @ravicr_ind Hi, what is the best e-mail address to reach you on? If you do not wish to provide that information he… https://t.co/gitbcxGPjf
  • By holding regular customer development meetings & technical reviews, we aim to continuously improve our overall se… https://t.co/xCBX7Z0ayZ
  • The URB12400-U1-SMB #LithiumIronPhosphate #smartbattery can be used to power a wide range of transportable and stat… https://t.co/hL5gS9sKBg
  • The latest #InspiredEnergy #SmartBatteries use 21700-sized cells to extend runtime (#energy ranges from 36 to 90Wh)… https://t.co/06lqMGDWn9