What picture, the one that was flagged up? ChargerDid you actually look at the picture of the replacement charger, and identify the DC charging cable and connector? It appears to be only two wires.
There is nothing on the other two wires from that replacement, except possibly a short or a diode....
As, if I understood it fully, the original charger is defective, why not inspect the cable carefully? It could tell you a lot! And possibly save you money, and help others here who might get into a similar situation....
Andy
That one illustrated is not even for the Impulse 2, the thread subject.
I have seen no other picture of the correctly configured charger, indicating only two wires are used.
The web page very clearly states to message them about the charger needed to be replaced and plug type, and we know that requires an XLR4 4 pin plug.
There is absolutely nothing showing that they then only wire the XLR4 to just two of its 4 pins.
I have every reason to believe for the Impulse 2, that "cyclebuddy" is way more on the correct path, in that charger features a "handshake to battery" circuit using at least one more of the pins.