History & Awards

2021 – Cadex New Product: Data Acquisition Unit (DAU)

Release of the Data Acquisition Unit (DAU) profiling batteries. The resulting matrices enable battery capacity measurement with multi-model EIS in 30 seconds, a technology offered in Spectro™ devices. (EIS stands for Electrochemical Impedance Spectroscopy.)

2021 – U.S. Patent 11,079,437 B2

Measuring battery state-of-health by capturing SoC with the Kalman Filter and the counting coulombs to full charge. Read more

2019 – U.S. Patent 10,302,709

Method to evaluate battery state-of-health determination using multi-factor normalization. (QuickSort V4)  Read more

2018 – Release of battery pack and charger for medical surgery device.

Release of battery pack and charger for medical surgery device. These power-assisted surgical tools reduce invasiveness in operations and reduce blood loss.

2018 – Release of tactical battery charger for mobile communications.

Release of tactical battery charger for mobile communications. Coded battery adapters service dumb and smart batteries side-by-side. Ability to field-replace prevents obsolescence. Discharge function calibrates and tests batteries with readout on graphic displays.

2017 – U.S. PATENT 9,851,408

Methods and apparatus for testing electrical storage batteries monitor magnetic susceptibility of components of the storage batteries. (Q-mag) Read more

2017 – Release of military edition Universal Conditioning Charger

Release of military edition Universal Conditioning Charger. The UCC series comes in single, dual and six-bay configuration servicing Li-ion, NiMH and NiCd batteries. Input 10–36VDC and 100–250VAC. Coded battery adapters configure the charger to the correct charge algorithm.

2017 – Release of KIA CA-12 Automotive Battery Tester

Release of Kia CA-12 Automotive Battery Tester; utilizing EIS technology to estimate battery state-of-health.

Explore the CA-12

2016 – Release of Hyundai CA-12 Automotive Battery Tester

Release of Hyundai CA-12 Automotive Battery Tester; uses electrochemical impedance spectroscopy to read CCA and capacity of starter batteries; predicts end-of-life before deficient capacity prevents cranking.

Explore the CA-12

2016 – Release of intrinsically safe battery

Release of intrinsically safe battery for mining. Battery pack has a built-in charger.

2016 – Release of QuickSort 4

Release of QuickSort 4, a generic rapid-test for single-cell Li-ion batteries up to 4Ah. QS4 is available in the Cadex C5100 battery analyzer to service mobile phone batteries at storefront and in service centers. The test time is 4 minutes.

2016 – Release of Batteries in a Portable World, 4th edition

The expanded 360-pages gives a realistic view of what is real in the battery world and what systems benefit society, going beyond media hype. The book elaborates on the different lithium chemistries, summarizes the pros and cons of alternative systems, addresses safety and transportation regulations, and looks at the battery in the electric powertrain. Buy from Amazon

2016 – Battery University gets a new logo

The crest combines battery Power and Knowledge to create the Latin verbiage POTESTAS ET SCIENTIA. We chose 3D graphics with four components to give it a look reminiscent to the original crest it replaces.

2016 – Cadex Europe GmbH

Incorporating Cadex into Cadex Europe GmbH at the new location in Frankfurt.

2015 – Move Cadex subsidiary to Frankfurt

The new location brings the company into the center of European business activities, a transportation hub for air, rail and road.

2014 – Release of UCC Solar Charger

The UCC Solar Charger includes a charge controller that adjusts to the available energy and provides a controlled shutdown at dusk and restart at dawn. The two-bay charger comes with custom battery adapters to charge Li-ion, NiMH and NiCd batteries simultaneously. Each bay delivers 25W and charges SINCGARS military batteries.

2013 – Release of UCC V2 Military Charger Module

This advanced module charges Li-ion, NiMH and NiCd batteries with 25W; configurable to 3.6–15V at 0.250–3A. A seamless up/down DC-DC converter charges batteries with a higher voltage than the input. Cold and hot charge protection; boost revitalizes over-discharged batteries. Features calibration by applying a discharge/charge cycle.

2012 – Release of PC-BatteryStore™ software for the Cadex C5100

PC-BatteryStore™ software provides an extension to storefront battery testing. With a PC, you can store customer information, record anomalies and provide customers with a receipt. More importantly, PC-BatteryStore™ streamlines battery testing to increase customer traffic and generate additional revenue. See Product Details

2011 – Release of Batteries in a Portable World, 3rd edition

The fully revised book expands on Li-ion technology, addresses safety issues, advises on shipping and traveling restrictions, describes charging and test methods, and examines the battery in the electric powertrain. The reader learns about different battery types, how to select the right system, and how to maximize battery life. See Book Details

2010 – C8000 Advanced Battery Testing System receives V2 upgrade with new accessories

The Cadex C8000 receives a significant update to enable new accessories including a Load Capture Unit (external device to capture and store discharge load signatures up to 100A), Dual Port Power Cable (channel paralleling to increase discharge power to 20A/160W) and support for External Load Control Units and Thermal Chamber Control.  See Product Details

2009 – U.S. Patent 7,622,929

A method for evaluating the conditions a battery by applying a discharge pulse and monitoring the response. Read more

2009 – Cadex Spectro™ CA-12 Battery Rapid-Tester

Cadex introduced the first battery rapid tester capable of measuring capacity, state-of-charge and CCA non-invasively. The invention is protected under the U.S. patent 6,778,913 entitled: Multiple model systems and methods for testing electrochemical systems. See Product Details

2009 – RigidArm™ adapter for cell phone batteries

The RigidArm™ achieves ease-of-use with spring-loaded arms that meet the battery contacts from the top down. Lockable mechanism allows quick and repetitive testing. The retractable floor holds the battery in vertical or horizontal position. The RigidArm™ is programmed to service single-cell Li-ion with a rating of 500-1500mAh. See Product Details

2009 –Battery Analyzer for Point-of-sale

The Cadex 5100 allows testing mobile phone batteries at storefronts. The single-bay battery tester comes with the RigidArm™, a battery adapter that allows easy connection to most cell phone packs. The Cadex C5100 also accepts the popular SnapLock™ adapters. See Product Details

2008 – Advanced programmable battery testing system

The four-channel Cadex C8000 is a laboratory battery testing system that examines battery safety circuits, verifies SMBus settings and captures load signatures for runtime simulations. The instrument performs complex battery tests in stand-alone mode or with a PC. See Product Details

2007 – Cadex opens European office

In support of our international growth plans, Cadex opened an office in Nürnberg, Germany. In addition to Business Development and Sales, Cadex Electronics GmbH also conducts research. The shared activity with Cadex Headquarters satisfies both North American and European market requirements.

2006 - U.S. Patent 7,072,871

Fuzzy logic estimates battery state-of-health by measuring electrochemical parameters. U.S. Patent 7,072,871 Application: Spectro™ rapid-testing Read more

2006 – U.S. Patent 7,019,542

U.S. PATENT 7,019,542. A method to test an electrochemical cell by applying a portion of a cycle of a low-frequency excitation waveform. Read more

2005 – Release of UCC 1 Series Chargers

Release of UCC 1 Series Chargers for military use. Each bay of the multi-bay charger can be configured to Li-ion, NiMH or NiCd. Field-upgradable with adapter change.

2005 – Cadex receives ISO 13485 certification.

Cadex receives ISO 13485 certification of our quality management system for the design and manufacturer of medical devices.

2004 – U.S. Patent 6,778,913

A method to test an electrochemical system by obtaining complex impedance data with multiple frequencies, fitting the complex impedance data to two or more models to obtain a set of fitted parameters. Read more

2003 – BatteryUniversity.com educational website

Cadex launches Battery University, an educational on-line resource that provides practical battery knowledge for engineers, educators, students and battery users alike. The papers address battery chemistries, best battery choices and advises methods make your battery last longer. Visit Site

2001 – Universal Conditioning Chargers

Cadex designed a series of advanced battery chargers for communications, medical and mobile computing applications. The SM Series chargers are based on the level-3 SMBus protocol. The off-the-shelf Universal Conditional Charger comes in one, two and six bays and can be adapted to many battery types. The UCC2 is built for vehicular use. See Product Details

2001 – Release of Batteries in a Portable World, 2nd Edition

The 292-page second edition replaces the 88-page first edition released in 1997. The book sold out quickly. Mr. Buchmann's articles on battery technology appear in leading trade magazines in many languages. Many had been translated into different languages.

2000 – C7400 battery analyzers featuring QuickTest™

Cadex introduced the Cadex C7200 and C7400 battery analyzers featuring QuickTest™. Using fuzzy logic, this advanced battery rapid-test technology checks the state-of-health of a battery in three minutes. See Product Details

1999 – Cadex receives ISO 9001 certification

1999 – Moving to custom-built Cadex Headquarters

Moving was nothing new for Cadex. “We have been packing and unpacking ever since I started the company in my house in 1980,” says the founder Isidor Buchmann. “Our frequent moves are not caused by poor planning but growth,” he quipped. The current address in Richmond, BC, is our 6th location, each move doubling and tripling the size.

1998 - Partnership with Motorola

Cadex engages in a partnership with Motorola to manufacture battery analyzers for distribution through Motorola's global network. In the same year, Mr. Buchmann is selected as a finalist in the Entrepreneur of the Year program.

1996 – Supplying chargers/conditioners for healthcare

Cadex reaches an agreement with Medtronic Physio-Control to design and supply intelligent chargers/conditioners for defibrillators.

1996 – Export Award

Cadex achieves international market recognition with a customer base in over 100 countries. The company receives the prestigious British Columbia Export Award.

1997 – Release of Batteries in a Portable World, 1st Edition

Cadex publishes the first edition of Batteries in a Portable World – A Handbook on Rechargeable Batteries for Non-Engineers. This popular book describing the basics of batteries and what the user can expect led to many subsequent releases in 2001, 2011 and 2016.

1995 - Cadex C7000 battery analyzer with SnapLock™ Battery Adapters

Cadex introduces the C7000 battery analyzer featuring the innovative SnapLock™ Battery Adapter system. This analyzer becomes the company's flagship and establishes a new global standard to which competitive products were compared.

1992 - Cadex R2000 - Ruggedized battery analyzer for defense

As part of a five-year program for a US defense project, Racal Communications, now Thales Communications, commissions Cadex to build intelligent chargers and battery reconditioners. Cadex receives several awards, including two Supplier Recognition Awards for Outstanding Performance.

1991 - Cadex C4000 - First programmable battery analyzer

To accommodate a growing diversity of batteries, Cadex releases the first fully programmable battery analyzer. The Science Council of British Columbia and the National Research Council of Canada assist with funds. Interchangeable battery adapters configure the analyzer to the correct setting; a menu function allows reprogramming.

1988 - Cadex C2000 - Compact battery analyzer

The four-station Cadex C2000 provides a low-cost alternative to the modular C6000 system. Batteries that fall below the set target capacity are automatically reconditioned with the AUTO program. Additional battery service programs are PRIME and CHARGE. The battery stations are pre-configured and cannot be changed in the field.

1988 - Cadex C6000 - Modular battery analyzer

The Government of Canada awards Cadex with funds to assist in the development of a new battery analyzer system. The modular Cadex C6000 accommodates 16 Slave Modules to process 64 batteries unattended. The options include printer and bar code scanner.

1985 - DSL 6629 - End-of-Train Unit

A private company commissions Cadex to develop and manufacture a microprocessor-based fast-charger for the End-of-Train Unit. The ETU is a telemetry system that replaces the caboose on a freight train. This charger technology forms the basis for other Cadex products.

1983 - Cadex 550 - First modular battery analyzer

The modular Cadex 550 services three batteries simultaneously; ten with the extension unit. The detachable Slave Modules are custom-built for each battery type. The Cadex 550 sold reasonably well and became the workhorse for many two-way radio users, including railways, public safety and oil companies.

1981 - Cadex 450 Battery analyzer with recondition program

The strength of the early Cadex battery analyzers lies in “Recondition,” a proprietary program that restores nickel-cadmium batteries affected by memory. The Cadex 450 works in conjunction with the original charger and services batteries for GE two-way radios. Only a few units were sold.