the quick & simple way of testing Symmetra batteries

Simply plug the SYBester into the SYBTU1-PLP tray and instantly get voltage, thermistor health, and battery class.

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SYBESTER Features

get a snapshot on the battery tray status
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Battery Voltage

Gives you the string voltage of the battery tray to measure general health. From 20-120volts

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Thermistor Health

Gives you the resistor value of the heat senstive Thermistor. Use the value to guage environmental health.

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Battery Class

Quickly differentiate between the battery class V66/C10/B20/C69 by noting the resistance value.

VIEW THE SYBester

Designed for service techs in mond
smartphone-1 SYBT Tester

Quick and Easy

Simply plug in and get all the values you need. No need to fumble with a multimeter, the SYBester's quick connect mounts securely on the back of the SYBT tray.
Download the one sheet or watch the upcomming video.

REAL-TIME STATISTICS

The field tool allows quick and comparable health values across multiple battery trays. The Symmetra's own battery monitoring will not display these health and environmental values easily. Using the SYBester over time, problems can be identified and pro-actively addressed.
Click to view the manual and quick guide.

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smartphone-3 Easy v1.0

ENGINEERED FROM GROUND UP

Robert Furmanak's SYBester design is a clean and affordable design. Using just 13 parts, the version 1 design delivers 3% accuracy, ideal for cursory field testing. Future versions may add a battery load test.

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?

PRE-ORDER on our GreenLightUPS website. As of January 2021, the first batch of SYBesters are being made. We expect to ship these first versions late January 2021. Full production will begin in late February.

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