Blog - Battery Monitoring

The issues of overheating of the cells in large packs

The slide shows two common situation that exist with large capacity battery packs. Both of them are related to the overheating of the cells. The overheating of the cells causes increased aging and degradation of the performance. The different temperatures of the battery pack cause

The frequent issue of the pouch cells

The IR photo shows the frequent issue related to the pouch cells technology. The connection tabs (terminal plates) are limited in size, they will overheat very quickly when loaded with high currents.

The heat from the terminal enters the area of the whole cell and causes gradual overheatin

Prismatic LFP cells – thermal advantages

The demonstration of the excellent thermal performance of the prismatic LFP cells. The IR photo shows the real example and the calculated simulation of the high current discharge of the prismatic LFP cell.

The advantage of the prismatic LFP is that these cells have a massive

Thermal imbalancing of the LFP packs – direct sunshine (2)

Another technical issue with the thermal performance of the LFP cells in motor-cycles. The overheating because of the direct sunshine.

The technical comment follows . The similar issue of the deficient thermal handling o

Thermal imbalancing of the LFP packs - air-flow cooling (1)

The example of a technical solution that shows an improper handling of the LFP cells in the battery pack. The issue here is not the performance of the cells (which themselves are excellent), but the deficient thermal handling of the whole solution.

1) The first photo sho

Arduino Relay Extension Board

This is one of the tips related to operating the power electronics. High current switching components using magnetic coils require high peak currents.

When using low power control electronics (like Arduino boards, or the GWL/Modular CPM board) the switching components can

Testing and working – Non-Stop!

What are you doing on the first spring Saturday in 2020?

Actually, the first spring Saturday in 2020 brought in a wave of cold weather to Europe. It was snowing today even in Prague.

However, the GWL/Team memberskeep working even on weekends

It makes the difference - TSWB cells – 10 years of daily...

Yes, another reference for the Thundersky Winston (TSWB) Lithium Iron Phosphate (LFP) cells. The photos show a pack made of cells from January 2010. The first generation LFP cells TS-LFP150AH with production date 20100130.

This pack is installed in an EV conversion project and has been providing the traction

GWL for Sustainable Green Waste Water Cleaning (2)

This is another photo from the installation of the energy back-up solution. The photo shows the construction of the outside protective housing that is made of a fire-resistant plaster-board. In addition to the temperature sensors, there a smoke detector inside the housing that will provide an

The CPM improvements in progress

We are working on improvements for the. The modifications of the firmware will allow improved settings and communication with theCell Communication Module.

We have also madethe RF (radio frequency) emissions teststo make sure the GWL Modular CPM board is withing the EMC requir