Lithium discharge question

[Iflyasa]

I haven’t posted in years. I have decided to upgrade my batteries to lithium. I have an Alltrex 600amp controller. Obviously this is a peak spike to draw 600 amps. I’m a little confused about battery discharge and overcurrent cutout. I don’t want to spike to current where the batteries shut off. Are there any batteries that are good for this 600 amp controller? I see like 200 max continuous batteries. Are these good for 600 amp spikes? Any suggestions on which battery or how to make this works?

Thanks

[Volt_Ampere]

Just because you have a controller capable of 600 amps doesn't mean you ever get even close to that. Run the Alltrax monitor program on your laptop and see what current you are normally pulling. You can set the max current in the software. I don't ever see over 300 amps on my cart (with 500 amp capable controller and D&D motor) My cruise current at 25mph is about 75 amps. If you get a larger lithium pack - say 105AH - you should be able to pull peak burst currents of 300 amps. (check the ratings of the pack you are considering)

[Iflyasa]

Originally Posted by Volt_Ampere

Just because you have a controller capable of 600 amps doesn't mean you ever get even close to that. Run the Alltrax monitor program on your laptop and see what current you are normally pulling. You can set the max current in the software. I don't ever see over 300 amps on my cart (with 500 amp capable controller and D&D motor) My cruise current at 25mph is about 75 amps. If you get a larger lithium pack - say 105AH - you should be able to pull peak burst currents of 300 amps. (check the ratings of the pack you are considering)

Thanks dude. I’ve been searching the net. These say 650 amp spikes for 10 secs. That looks like a safe bet.

https://dakotalithium.com/product/da...4-battery-set/

[Pat911]

Please don’t buy 4x12v batteries, even if they state for golf cart use. You’ll be coming back here asking for help and advice when they’re not performing to spec. Search around this site for many explanations as to why.

Purchase a proper 48v battery. There are many options out there.

Cheers
Pat.

[Iflyasa]

What about 3, 48’s in parallel?

https://thebigbatterystore.com/colle...-life-po4-90ah

[Pat911]

Much better option. I still prefer a single bigger battery but smaller, parallel connected batteries can work well too.

[wingnut2000]

i have a big battery hsky 103 ah in my RXV that runs 28 mph so it draws a lot of amps and havent had any problems since i put it in a couple months ago

[scottyb]

I'm using a 48v 72AH Eco Battery with 300 amp limit running a big longstack 14 hp motor on 500 amps with limit set to manufacturers 300 suggested - no problems works great.

[Bama Brad]

Get a single pack, they usually come with charger and some have built in reducer, also.

[ClubCarDave]

Originally Posted by wingnut2000

i have a big battery hsky 103 ah in my RXV that runs 28 mph so it draws a lot of amps and havent had any problems since i put it in a couple months ago

I have a similiar setup with my Club Car and the Navitas controller. I recently added the Big Battery Husky 48v battery and am still trying to figure this all out. At the beginning I turned off the master battery switch on the Husky battery but then the Club Car OBC didn't like when I Powered it back on and I had to run a reset procedure to make it happy again. Since then I've been leaving the master battery switch on but I think the trade is that it is constantly discharging while I am not using the cart. I guess I need more insight from some of the other golf carters on how to solve this problem or if this is a trade that I have to live with. Thks.