Did your forget to charge your golf cart and now the charger will not start working when you plug it in? This video will show you how. Most newer 36 volt chargers will not work it if the voltage of your batteries get to low and you will need to get the voltage up to start the charging process.
If you are running 12 volt or 6 volt batteries in your golf cart if could be as simple as using a basic car battery charger to bring each battery up in voltage one by one.
Just follow this guys simple to understand battery recharging video.