To BGW
Get a digital Volt meter and check the battery and pack Voltage and post here ?
And clean those battery cables . connectors up before charging again.
I assume this is a 48 Volt cart with a automatic charger, it can take up to 12-16 hours to charge a depleted pack. The good news is it's not totally depleted otherwise the charge would not
even come on.
Check the Focus on that camera