GWL has supplied more than 30 000 pcs of the. Based on the user experience, we have found out that some customers have damaged the board when soldering the wires to the battery contact terminals.
There isa high risk of overheating of the componentsespecially near the (B-) termina
GWL/Team has spent many months testing the active balancers from China. In general, we have found following reasons why to “Say No!” to these products.
1) The risk of a products failure– Low Reliability Several of the balancers simply failed after some time. They either stopped working out of a sudden or
This photo shows the internal design of the energy storage black box from a Chinese supplier.
The battery pack consists of75 cylindrical cells welded togetherinto a fixed pack. This pack is stuffed into the 19” PC rack. See for yourself.
Clearly visible issues
This is the memorial of the oldest battery (as of 8/2020) from the, that we were able to trace back.This battery was produced in 8/2007.
As seen from the photos, the battery served for many years (10+ years) and would keep serving even longer. However, an accident made the end of the life fo
In 1950 the cities in the US got rid of their electric street cars systems. The photo from a tweet shows thePacific street carswaiting for the destruction in 1956. The same story was in Prague. There was a functional trolley-bus system operatingfrom 1936 till 1972. It was discarded in favor of gasoline bu
In July 2019, we received a request to the installation of Solar energy storage 48V 5.4kWh.
It was a complete solution of a photovoltaic power plant for the customer, which was implemented by the assembly company SW-power. After consultation with the company's executive Mr. Coufal, we came up with a
The graph shows the price and size development of the60 cell Poly solar panels from 2013 to 2020.