the quick & simple way of testing Symmetra batteries.. Now Live!

Simply plug the SYBester into the SYBTU1-PLP tray and instantly get voltage and battery features.

AND NOW with version 2: Battery Load Testing, Bluetooth Recording, and more!

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SYBESTER-LIVE Features

get a snapshot on the battery tray status
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Ver 1 Features

Gives you the voltage, thermistor, and resitance of the battery tray to measure general health.

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Battery Load Testing

Tests the entire string with a burst of 600watts to measure the health of batteries under load.

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Companion App

Battery Test results, Temperature, Resistor Value, Date Stamp and more get sent to the companion app for download and analysis

VIEW THE SYBester

Designed for service techs in mond
smartphone-1 SYBT Tester

MORE POWERFUL

The new SYBester has been completely redesigned based on your feedback.   A new Microchip AVR processor will record data and transmit it to your phone through the Bluetooth enabled App.

The Built-In Battery Load Tester gives you confidence in the Symmetra's battery health. 

Watch the video or download the specification sheet

COMPANION APP

The Companion App logs all the data from your battery test.   Voltage, Voltage under load,  Temperature, and Resistor Value.. making it an ideal preventative maintenance tool.

Optional Voice Annoucement allows you quickly copy the key data values during the test.

Watch the video and App video

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smartphone-3 Live! v2.0

ENGINEERED FROM GROUND UP

Robert Furmanak's SYBester designs have evolved from a simple voltage tester to a powerful battery health instrument for professionals.

Follow Robert on LinkedIn and Learn more about his challenge to find a safe way of testing batteries in a small package.

What people are saying

Reviews
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Having a technician insert voltmeter probes into the battery terminals is inefficient and error-prone, i knew i could find a better way.

Robert Furmanak, Inventor and Engineer at GreenLightUPS Quote 2
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Easy tools that provide quick actionable information in the field are a welcome resource.

Bob Durham, President of GreenLightUPS Quote 2

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Development TEAM

taking a problem and creating a solution
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Robert Furmanak

The SYBester is another one of Robert's great contributions to our company. Robert innovative abilities has led Greenlight to be a leader in repairs and new solutions.

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GreenLightUPS

What started out as a need to measure trays has become a tool which is worth sharing with the entire industry. For 40 years we have been a solutions firm.

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UPS Service Techs

This tool was made for you, with input from people like you. Have a suggestion? Let us know and we'll try to incorporate your ideas in future versions.

How to GET THE SYBESTER?

We released the Sybester 1st generation in Spring 2021 and it quickly sold out. We are building another around of Classic Sybesters (v1) shortly. Our new SybesterLIVE (v2) is going into pre production in September.

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