General 500x battery light

[Dtosh271]

Hi

Looking for some pointers. Car wouldn't start, garage said it was alternator. Got it replaced. When driving indicator was showing it was now charging the battery but warning light came on. After a month, the car wouldn't start. Got a jump start and got the battery changed. Battery warning light still on with new battery and alternator. Still starting for now but looking for ideas

 

[The Panda Nut]

Start by checking earth is connected
IF THE CAR HAS STOP START there is a sensor in the system. Battery replacement process must reset this.
I once had a faulty fuse cause this! It was satanically hard to diagnose. And impossible to see. On old experienced engineer went straight to it.
Check the voltage is c 14.4 engine running.
Check no wires loose disconnected on the alternator.
Get a diagnostic to check the battery and ecu voltages agree.

Make sure main ecu plugs still solidlyconnected.
Some new alternators dont work!!!!