Cable Upgrade - TXT 48V

[bighanded]

Originally Posted by JohnnieB

Overkill is underrated.

2Ga has 59% less resistance than 4Ga and 153% less resistance than 6Ga.

If you have about 20' of high current cables in your cart, with 6Ga cables you lose about 79W/100A, with 4Ga it's about 50W/100A and with 2Ga it's about 31W/100A.

However, the biggy is going from OEM cables that are more than a year or two old to new, high quality, 4GA or 2Ga cables, or thicker if controller throughput is over about 500A.

My first very upgrade was going to 2Ga cables in an otherwise stock, 3 year old 36V PDS and I got a seat of the pants increase in acceleration.

hey Johnnie...recommended best source for 2ga cable set?

[JohnnieB]

Originally Posted by bighanded

hey Johnnie...recommended best source for 2ga cable set?

Here is where I got my cables: http://www.cartsunlimited.net/battery-cables.html

Silver soldered ring terminals and hermetically sealed.

[bighanded]

Originally Posted by JohnnieB

Here is where I got my cables: http://www.cartsunlimited.net/battery-cables.html

Silver soldered ring terminals and hermetically sealed.

2) more questions:

A) old PDS 36volt - 2ga gonna make a difference on being able to sustain speeds on the road on inclines? I've got plenty of low end torque now...I'm chasing the ability to hold speed on a hill...ie 15mph cruising down my 2 lane..and we hit even a mild hill and speed drops significantly..down to maybe 10 at best...

and.. I have to beg the obvious question...what am I getting for $200 that I can't get from the cheapos on amazon for a $100ish less?

[JohnnieB]

Originally Posted by bighanded

2) more questions:

A) old PDS 36volt - 2ga gonna make a difference on being able to sustain speeds on the road on inclines? I've got plenty of low end torque now...I'm chasing the ability to hold speed on a hill...ie 15mph cruising down my 2 lane..and we hit even a mild hill and speed drops significantly..down to maybe 10 at best...

and.. I have to beg the obvious question...what am I getting for $200 that I can't get from the cheapos on amazon for a $100ish less?

I need some information about your cart to answer the questions and the answers are going to be long ones, so please start a new thread instead of hijacking this one.

Info needed in first post of new thread.
Tire height?
Which PDS plug installed in J2?
Rear Seat?
What is resting battery pack voltage.
What is battery pack voltage at top speed on level pavement?
What is battery pack voltage while climbing the hill that slows cart to 10MPH?

[bighanded]

will do..apologies for the hijack

[geoffarias]

Thanks for the input and discussion. I was looking at Scotty B page and just confused as what to buy. I currently have a stock motor and controller. What cables need upgrading. I am assuming all the cables running to each batter and the negative and positive coming to and from controller?

[geoffarias]

Originally Posted by orangeman6

It might be applicable to ask which size cables you’re currently running. I’ve seen the debate here by the smart guys about if 2g was overkill compared to 4g for most upgraded carts. I’ve never seen one of them recommend the stock 6g cables. And, Bob is crazy knowledgeable about this stuff. If he was tuning my cart and recommended something, I’d do it.

Running stock cables from what I can tell- 6 gauge. Just trying to determine what cables I need to upgrade.

[JohnnieB]

Originally Posted by geoffarias

Running stock cables from what I can tell- 6 gauge. Just trying to determine what cables I need to upgrade.

All ten of them.
The two 8 or 10 Ga to the motor's Field windings are adequate.

[sigfla45]

Scotty sells a full kit and all the info you need is on his site. 5-10 minutes reading and you will know what to order.

[Out2Sea]

Originally Posted by JohnnieB

Overkill is underrated.

2Ga has 59% less resistance than 4Ga and 153% less resistance than 6Ga.

If you have about 20' of high current cables in your cart, with 6Ga cables you lose about 79W/100A, with 4Ga it's about 50W/100A and with 2Ga it's about 31W/100A. .

For clarity, are you saying you don’t have to upgrade all the wires to see an improvement vs “you’re only as fast as the slowest horse.”

In laymen’s term a relay race vs a stage coach team. In one the finish time is lessen, while the other will be fixed.