2001 Club Car Sputtering, Barely Charging

[GolfCartBeanBagBoys07]

Hello, I am new to the Golf Cart world. Well, sort of. I worked at a Golf Course for many years, but we always had gas carts, so I am new to the Electric Golf Cart World haha.

We just bought a used 48V 2001 Electric Club Car. It ran pretty well last fall, only ran it 4-5 time for about 20-30 minutes a clip. After the winter, I charged her up and ran it once! Took about a 10 minute ride around the neighborhood, and as I am pulling back to the backyard it started losing power.

So, I charged it up, and boom nothing. At most, I am getting a consistent sputter. Nothing is moving, and the horn/lights won't even come on. The batteries were tested by a buddy, and they seem to be charging, but very very slowly. The charge is only charging at like 5 amps or less, often it shuts off before ever finishing the charge job.

Am I having a charger problem? A motor problem? Or a battery problem?