Polaris Ranger EV

[matt889]

I would love to know the range you're getting once you have this new setup installed and also some pictures of it once finished as this is something I will be doing with my brand new 2020 Ranger when I buy it. Also if you get a cycle analyst it would be a incredible I said for you to have for your cell info display and related battery info, it gives you exact power input and output and regen braking and you can customize 3 power profiles to limit your amp draw if needed Etc it will be the first upgrade I get on my Ranger when I get it

[speedmd]

I would love to know the range you're getting once you have this new setup installed and also some pictures of it once finished as this is something I will be doing with my brand new 2020 Ranger when I buy it. Also if you get a cycle analyst it would be a incredible I said for you to have for your cell info display and related battery info, it gives you exact power input and output and regen braking and you can customize 3 power profiles to limit your amp draw if needed Etc it will be the first upgrade I get on my Ranger when I get it

Will have updates - photos as this develops. The Pol. EV comes with a 3 way dash switch stock. Can add a meter like the CA but first need to get pack built -installed and charger setup in a idiot proof manner. The BMS has a bunch of capability I need to look further into, and the stock controller may be a bit of a issue messing with. Certainly not something I want to mess with unless I have to given I know very little about programing it and tools to do such are a bit prohibitive.
As far as range goes, the 14 leaf modules in a 7s 2p setup are about 7 KWH. The 8 stock wet batteries in a 4s 2p setup are claimed to be around 10 KWH. Given the wet batteries can not be run down much further than halfway without some serious decay, it should be better with the Leaf pack. Plus the spec. C rate of the typical wet battery is much lower.

Nice things are that it will be some 600 pounds lighter, and has room enough in the battery area to hold multiples of the pack size I am installing. Range should not be a issue for most anyone if you load it up with leaf cells. If I find a local leaf wreck, I will be trying to get it for the battery.

[Curtisgc1]

Hello Everyone, I just ordered battery packs from Techdirect to put in my 2011 ranger ev. I am following this post and appreciate the info. I bought 48 volts Nissan Leaf Lithium ion Mini Power Pack Battery for golf cart 7 kwh G2 W/ Charger Lot of 2. 60AH. I am hoping thats enough. I just need to drive around my hilly 5acre home. I dont need to venture far or very long. What do you guys think?

So, If I understand correctly. The sevcon converts the 48vds to ac for the motor? Do we need to reprogram the sevcon? I am getting a bms charger with the battery pack so it appears to me its just plug and play. Is that correct?

Thanks in advance.

[speedmd]

14S, 7 of the leaf modules should be a direct drop in. You may need check the stock controller programing for a suitable low voltage cut off for Li packs. Put a voltage indicator or alarm on the pack so you don't get too low if your exploring. The BMS I am waiting for will take care of that issue. Interested to see how they work out for you. Mine is still running the lead acids until I finish the new battery box.

[Astropower]

Hello,

Chargery BMS16T if almost fine.
You should ask for 600A Shunt and 600A Relay. 800A will be better.

The problem that BMS16T, that balance function work on bleeding. not suitable for big capacity cells. i suggest to add active cell balancer. 3-8A.

Increase voltage would not increase speed simple as BLDC motor, for AC Induction motors, there is specific Hz/Voltage ratio. need to control the frequency as well.

I suggest do not change nothing with the original controller, and use aftermarket controller, like Kelly.

[folseman]

I just bought a 2018 Ranger EV and want to convert to lithium. I've done a golf cart conversion, but it seems the Ranger will be a bit more challenging.

I currently have (16) 152ah Life Prismatic Batteries and a 16S Chargery BMS for an initial conversion, and later use (20-24) 200ah batteries and 24S Chargery 24S BMS to over-volt it (64-72V). Oh the dilemmas!

Some challenges: I noticed additional wiring coming off of the battery pack. Is this for the 12V accessories? Maybe 48V to 12V reducer Charger for the Ranger seems more complex than my old straight forward Lithium charger on my golf cart. Lots more wires coming out of the Delta.

[speedmd]

The chassis wire -switches- lights are 12v, and share many of the Ice components. I most likely will leave a second- 12v battery in it if easier. May make it easier to have a onboard LI battery heater connected for those times it may be needed and no outlet is near by for the overnight ac heater setup.

Not sure how overvolting will work on this motor- controller setup. It is plenty fast for our app. Polaris EV forums claim that they run maybe 5 mph faster with some programming changes and higher volts. Not sure it would be worth it.

[curtr109]

I'm curious how well the techdirectclub battery packs worked in the ranger. Seems the 60amp discharge on the packs would be too low and you may need 3 packs to support the cart??

[Astropower]

Hello,

You can ignore this 12V.
all the 12V system works on 48V to 13.8V converter.

Here is the biggest Lifepo4 converter for Polaris Ranger EV

64 Cells, 16S4P of 100Ah CALB (108-112Ah Real Capacity) over 21Kw Battery.

Chargery 16S PRO BMS (The 1.2A Balance not suitable for high Capacity cells)
Active Balance 16S 5A
30A Charger, controlled by SolidState Relay for Charger protection.
Wires Upgrade to 70mm^2 (35mm^2 before)
New Battery housing.

Can driver about 150-180Km without problem.

best OFF-ROAD performance.

Enjoy.

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[Astropower]

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[Terry7]

Greetings: Can you tell me if the Polaris Ranger (Sevcon controller) will take 72 volts without modifying the settings?

I've got a bunch of 36v packs and would be interested in putting them to use in an UTV like this.

Thanks in advance.

Terry

[speedmd]

Not sure if they program a high voltage cut off but would tread softly. I know from experience that you can run it near dead with the wet batteries. Sevcon lists a size 6 in 36 -48 volt and 72 - 80v models. The 36- 48v which is most likely in them has a 69.6v max listed.

[Terry7]

This link below indicates the Gen 4 can do 24v - 96v :
http://www.sevcon.com/news/articles/190 ... echnology/

I'm guessing there could be programming to limit the voltage input as you suggest.
Not looking for speed, just want to know what will be involved to make it run on what I have. I did see a 56V level on one of the dash photos posted in this thread.

Thanks for you reply!

[speedmd]

I would not assume it is just programing. These can charge above 55v with the wet batteries. I have not pulled it apart to check cap values. With regen - slide braking as programed, you want a bit of head room.

[Astropower]

Polaris Ranger have Induction motor (AC),
The RPM controlled by Phase Frequancy.

Higher Voltage have potential of higher current = More Torque.

This Vehicle Build for 48-56V. Motor contoroler and DC-DC converter.

In this voltage range you need battery which can supply 480A continual current supply, to enjoy full offroad capabilities.