Could you post a picture of your charger? I have a feeling the guy I bought it from sent the wrong one....It doesnt have a light on it. My charger that plugs into the outlet has a small red led that lights up. If you unplug the MP40 with it plugged into the backup the MP40 controller will flash green while its running on battery backup.
Also you can open it up and put another battery in it. Its just a small motorcycle battery in that big white case. You can google it.
It is actually a small green LED and it will stay on if unplugged from the wall outlet running on battery power. Sorry I thought it was red. Also the MP40 will blink this green color and the dial will go all the way to the right on battery backup.Could you post a picture of your charger? I have a feeling the guy I bought it from sent the wrong one....
I have that link. If I knew the charger I had was the right one, I would do the battery replacement. I even priced a rivet gun.If this is not allowed mods please delete it. Ecotech Battery Backup Replacement
14.5v=1.6a..........spoke with seller and will accept return.What is the output of your charger?