Blog - About GWL

Please help me – Overstock of Unused Old-like-new...

From email:Our company has some overstock of cells and batteries we purchased in the past. They are like new - they were in the warehouse for last 8 years - completely unused. We have about 3000 pieces. Can you come to our warehouse to check these? We will talk and make the best price for

Child Helpline International – supported by GWL

GWL is helping and supporting. By means of DC/AC technical solutions, we are helping a large communality of energy users worldwide. Through a local financial support, GWL is helping to fund the “Child Helpline International”.

???? For 10 years already, GWL supports child-help nonprofit organizati

GWL’s Team Work: It is beautiful!

When you take a little time and look at all the details of the work of the GWL/Team members, you can only take a breath and say:“Yes, it is beautiful.”

Ideas, colors, designs, efficiency, smartness, clever minds…. and much more.

Thank you all!

The Climate Chamber for the GWL Testing

This is the photo of theclimate chamberin which the GWL products are being tested and verified. Recently GWL team has been testing many ofto confirm the specifications of the cells within the full range of the operational temperaturesfrom -40°C to +50&d

Coffee Time @ GWL

There is also time for a coffee and some small snack: nuts & chocolate.

Let us enjoy the life!

VZV - The Fork Lift Battery Replacement Project

The technical team of GWL keeps working on the project of the battery replacement for the fork lift battery packs.

The original lead- acid cells will be replaced by the LFP. See some project designs with the cell placement in side the battery container. There are many configurations possible,

The CSoD project – 100% Success in Winter 2021

The photo of thewinter day in January 2021. The sun is shining at the lowest sky position and it is quite cold outside even during the daytime. Yet, even in the deepest winter, theCzech Sustainable House project (CSoD)is full of energy and fully habitable.

Some of the doubters of t

GWL/Modular Hammer Holder

A revolutionary solution from GWL! The Hammer Holder.

Are you tired because of holding the hammer in your hands? Just put it into the Hammer Holder.The greatest technology solution from GWL! Enjoy!

[???? joke]

The CSoD Project - Real or fiction?

These photos are fromGWL’s project of the Czech Sustainable house. This project goes on very well and the house is now fully equipped and operating.

The set of these photos showsvarious realities of the same thing. Which of these photos is true?Which of them is the reality?&nb

GWL/Modular Balancing Rail in action

Balancing rail is a setup of 8 balancing resistors connected to the metallic rail-holder.

Each resistor is a20W, 0.68Ohm ceramic model. With balancing voltage of3.65Vit will pass through the current of5.36Amp, releasing some19.6Wof heat.

The metallic rail al