Power Electronics and Energy

Since 1947 they have been in manufacturing and marketing of battery chargers, portable power sources, inverters/converters, battery testers, 12V accessories, and welding equipment.

Schumacher Electric - Battery Chargers and Power Inverters

 https://www.batterychargers.com/

Schumacher Electric started originally by designing and producing custom-built transformers for the electronic industry.

PST-900X ProSeries Battery Tester with a Printer

This is 3 Testers Battery, Charging and Starting in one instrument. Easy to use with 3 Button Operation and used for testing 6 & 12 volt batteries.

It is also helpful in evaluating 12 & 24 volt charging systems. It has a 16 Character LCD with Adjustable Backlighting. Includes Case, Clamps, Batteries.

Before you start testing - Precautions - (from the user manual)

Be sure the area around the battery is well ventilated while the battery is being tested.

Clean the battery terminals. Be careful to keep corrosion from coming in contact with your eyes.

Inspect the battery for a cracked or broken case or cover. If the battery is damaged, do not use the tester.

If the battery is not a sealed maintenance free battery, check the level of each cell and if necessary, add distilled water until the battery acid reaches the level specified by the manufacturer. This helps purge excessive gas from the cells. Do not overfill.

If it is necessary to remove the battery from the vehicle to test it, always remove the ground terminal from the battery first. Make sure all accessories in the vehicle are off to ensure you do not cause any arcing.

Schumacher Electric Corporation
801 Business Center Drive, Mount Prospect, IL 60056, USA.

They design and manufacture Battery analyzers, chargers, rapid-testers and monitoring systems. They also create custom test solutions in Power Electronics. https://www.cadex.com/

Battery Systems from Cadex Electronics

Products Include - Cadex C7000 Series battery analyzers, Battery Maintenance and Testing Systems. The Cadex C5100 battery tester. Spectro CA-12 Series is the first hand-held battery tester.

Cadex C8000 Advanced Battery Testing System

The Cadex C8000 is more than a programmable power supply and load bank; the instrument provides intelligence to assist in battery testing.

"You can capture load signatures of power tools and laptops and then perform simulated battery runtime by replying the stored data. Add a thermal chamber, external load bank and other accessories,"

Cadex Electronics Inc.
22000 Fraserwood Way Richmond, BC V6W 1J6 Canada

The K2 Series ultracapacitors are a third generation design that provides 2.7 volt operating voltage while improving Maxwell's high performance and high reliability on a high volume manufacturing platform.  - https://www.maxwell.com/

K2 Series High Capacity Cells - Maxwell

This type of caps are also an ideal source of back-up power. It can provide extended power availability, allowing critical information and functions to remain available during dips, sags, and outages in a power supply or battery change.

The K2 2.7V series works in tandem with batteries for applications that require both a constant power discharge for continual function and a pulse power for peak loads. In these applications, the ultracapacitors relieve batteries of peak power functions, resulting in extended battery life and a reduction in overall battery size and cost.

Maxwell Technologies, Inc.
3888 Calle Fortunada, San Diego, CA, 92123, USA

The ROV device's high current-handling and energy absorption capability, fast response, and low cost can make it suitable for use in line voltage applications.

ROV Metal Oxide Varistors Raychem

"ROV metal oxide varistors help protect power systems from damage caused by transient overvoltage faults such as lightning, power contact, and power induction. Suitable for a broad range of applications, ROV devices help protect sensitive electronic equipment from potential power surge damage by clamping high-energy, short-duration impluses."

"An ROV device is a varistor fabricated using a Zinc Oxide (ZnO) powder, sintered with other metal oxide ceramics. The resulting structure is a polycrystalline ceramic that consists of distributed ZnO grains, separated by other metal oxide ceramics."

Raychem Circuit Protection Products

"A varistor is a variable resistor-a voltage dependent, non-linear device whose resistance decreases as the voltage applied across the device increases. "

ROVs can also be used to help protect electrical equipment from damage caused by large voltage or power transients on the AC Mains inputs. In a coordinated circuit protection scheme the ROV can be paired with a PolySwitch overcurrent protection device to help improve equipment reliability and fulfill IEC-61000 test requirements.