New to carts….just bought a 2020 Club Onward and need help please

[KnowNothing]

The thing is like brand new but I’m guessing the batteries were neglected…After what seems to be a full charge the cart run amazing then after a very short time (maybe 10 minutes) the cart pauses/jerks at full throttle from a start….after a short run time the yellow battery starts blinking yet the battery level indicator shows a full charge….When I plug in the charger the charger shows 3/4 charge.
Are my batteries junk?
Is now the time to consider an upgrade to lithium?

Thanks in advance

[KartMan154]

First of all, is the cart still on warranty?

[KnowNothing]

Originally Posted by KartMan154

First of all, is the cart still on warranty?

I’m not sure and either is the original owner from whom I bought it. He said he gave me all the paperwork he had on it and I can’t find anything about warranty. Is there a standard transferrable warranty that comes with the cart?

[Volt_Ampere]

Batteries are probably not on warranty anyway. Get a multimeter and measure all of your batteries right after charge and then under load when driving. You are probably right to suspect bad batteries.

[KnowNothing]

Originally Posted by Volt_Ampere

Batteries are probably not on warranty anyway. Get a multimeter and measure all of your batteries right after charge and then under load when driving. You are probably right to suspect bad batteries.

Silly questions….should I disconnect the batteries from one another for testing to assure I’m testing them individually? Also….what method should I use to test while driving/under load?

[Volt_Ampere]

You do not have to disconnect anything. You can measure a battery at a time with your DVM.

[KnowNothing]

Originally Posted by Volt_Ampere

You do not have to disconnect anything. You can measure a battery at a time with your DVM.

Another silly question….aren’t the batteries wired in series?
How do I isolate them for testing without taking them out of the series?

[Volt_Ampere]

They are wired in series. But you can measure them individually with your meter even when they are still connected. Just put one probe on the + and one on the - terminal of each battery. You would get exactly the same results if you disconnected them. (I'm an EE so I'm not blowing smoke)

[KnowNothing]

Originally Posted by Volt_Ampere

They are wired in series. But you can measure them individually with your meter even when they are still connected. Just put one probe on the + and one on the - terminal of each battery. You would get exactly the same results if you disconnected them. (I'm an EE so I'm not blowing smoke)

Awesome…thank you

[KnowNothing]

Should I need to…which Navitas system should I consider?