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Where do the 2 pink wires go on the Polaris Ranger EV Lithium conversion? What about a winch?

Tuesday, February 17, 2026

Ok Friends this is a question that has been brought up a few times: Where do these 2 pink wires go? In many lithium conversions, (including our own) the question about these 2 little pink wires comes up (color may vary with the model year of the unit) and people want to know where to connect them. The best answer from our side is: DON’T CONNECT THEM. These are no longer needed and can cause your charger to sometimes not to charge your batteries properly. Also, if you connect them improperly you could over volt your dash board lights and or rail which would require you to get new dashboard lights and switches. 

 

(image source credit: https://www.facebook.com/groups/233139440447381/posts/2207623199665652/)

That being said, if you insist on connecting them, lets first see what these wires do on the Ranger EV:

1) One of the pink wires is for accessory power, this is for a 12v feed that allows you to attach accessories to your unit that requires a 12v supply (up to 2 amps). If you want to use this you, you will need to connect the pink wire to the correct SFK battery, once done your 12v rail will have power (this is normally under the hood on the Polaris Ranger):

 (image credit: https://www.rangerforums.net/threads/confirmation-of-what-where-the-2-pink-wires-go.50867/page-2)

2) The other wire is used by your charger/dashboard lights. This can help the charger access the condition of the batteries, however, IT CAN ALSO BLOCK charging. If you find the unit is not charging you may need to disconnect this wire.

Since the SFK conversion kits use 12v batteries you can connect these to the final positive battery (passenger rear battery’s positive terminal) this will give you dashboard lights and aux power if you need it. Most other 48v conversions simply do not even use these wires at all and will ziptie them to the rail. Should you decide you want to connect these 2 wires, follow the diagram below:

The second most common request we get is: How can we use one of the batteries for a winch or snow plow? Something that can draw a lot of power like a high powered winch or a heavy duty snow plow is going to need some serious amps, for these setups we recommend connecting the winch directly to one of the batteries, specifically battery 3 (see diagram above). This will prevent damage to the main dc-dc converter on the Polaris and the 315EX will be able to provide 300 amps or more to the winch or snow plow, far exceeding the 30 amp limit of the dc-dc converter.

NOTE: you can not be accelerating or using your unit aggressively while using the winch, limit your amp usage on the Polaris to under 100 amps when doing heavy loads as it may amp out battery no. 3. Also note, this will cause a battery imbalance, so fully charging the battery set will take longer, or consider getting our 4 port aux charger to ensure proper charging.

 

 


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