Questions:
- What is the charger light doing while the battery is disconnected?
- What colour is the status light? Flashing red, solid red, red/blue fault
- Does the status light change to solid red once the charger is connected? Or does it stay flashing?
- Is there a second battery or charger than can be used to isolate the issue to either the battery or the charger?
Possible causes :
- Charge detect connector within battery has come loose / been disconnected
- Charger has possibly blown component.
- Charger end plug has come loose, yellow part unthreaded causing loss of contact within the battery socket