Yamaha electric cart, 36 volt, charging assistance needed

[golfcartnewb13]

Hello all.
I recently purchased a used older Yamaha electric golf cart. It has a 36 volt system. 6 batteries.
It came with an old lestronic II charger.
Can anyone assist me with charging this thing? It is not a simple plug in, it has positive and negative clamps like a battery charger. I'm not sure how to go about charging this thing. I have included pictures for reference. Thanks in advance!

[golfcartg]

This charger is a solid piece of equipment, but it works a bit differently from the typical plug and play chargers you might see on newer carts.

Since your Lestronic II has positive and negative clamps (like a traditional automotive battery charger), you’ll need to connect it directly to your battery bank. Your cart has six 6 volt batteries wired in series to make up the 36 volts. To charge the entire pack, find the main positive terminal (often at one end of the battery chain) and the main negative terminal (at the opposite end of the chain).

Connect the Clamps Carefully. Attach the positive (red) clamp from the charger to the main positive terminal of your battery pack. Then, connect the negative (black) clamp to the main negative terminal. Double check that your connections are secure and on the correct terminals.

Once connected, plug in your charger. It should start charging your battery bank, typically indicated by a hum or a light on the charger itself. Since it’s an older charger, you may need to monitor it to confirm it doesn’t overcharge the batteries. Avoid charging in enclosed spaces, as batteries can emit gases during charging. Proper ventilation is key.

And that’s it! Just keep an eye on it, and let it fully charge the batteries. If you find that the charger doesn’t shut off automatically, you may want to unplug it once the pack is fully charged. If your batteries are deeply discharged, the charger might not kick on right away. In that case, you may need to charge each battery individually for a short period to bring them up to a level where the charger can recognize the pack and start charging normally.

[golfcartnewb13]

This charger is a solid piece of equipment, but it works a bit differently from the typical plug and play chargers you might see on newer carts.

Since your Lestronic II has positive and negative clamps (like a traditional automotive battery charger), you’ll need to connect it directly to your battery bank. Your cart has six 6 volt batteries wired in series to make up the 36 volts. To charge the entire pack, find the main positive terminal (often at one end of the battery chain) and the main negative terminal (at the opposite end of the chain).

Connect the Clamps Carefully. Attach the positive (red) clamp from the charger to the main positive terminal of your battery pack. Then, connect the negative (black) clamp to the main negative terminal. Double check that your connections are secure and on the correct terminals.

Once connected, plug in your charger. It should start charging your battery bank, typically indicated by a hum or a light on the charger itself. Since it’s an older charger, you may need to monitor it to confirm it doesn’t overcharge the batteries. Avoid charging in enclosed spaces, as batteries can emit gases during charging. Proper ventilation is key.

And that’s it! Just keep an eye on it, and let it fully charge the batteries. If you find that the charger doesn’t shut off automatically, you may want to unplug it once the pack is fully charged. If your batteries are deeply discharged, the charger might not kick on right away. In that case, you may need to charge each battery individually for a short period to bring them up to a level where the charger can recognize the pack and start charging normally.

Thank you so much!!