# 2016+ High voltage conversion… successful!✅ **URL:** \ **Category:** GEM Forum\ **Created:** [July 27, 2021, 1:38am UTC](https://community.electricforum.com/t/2016-high-voltage-conversion-successful/22001 "2021-07-27T01:38:25Z")\ **Posts on this page:** 18\ **Page:** 2
**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\ **Post date:** [August 9, 2021, 2:11am UTC](https://community.electricforum.com/t/2016-high-voltage-conversion-successful/22001/21 "2021-08-09T02:11:00Z")
@LithiumGods get a head start by downloading the free software. @djgabriel2004 may be able to help with the process. I have an extra Sevcon dongle if you are going all in. You can borrow it if you like. ---
**Author:** ![djgabriel2004](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/djgabriel2004/32/12304_2.png) [@djgabriel2004](https://community.electricforum.com/u/djgabriel2004)\ **Post date:** [August 9, 2021, 2:49am UTC](https://community.electricforum.com/t/2016-high-voltage-conversion-successful/22001/22 "2021-08-09T02:49:32Z")
> [@MaxAtMaxMarine](#): > > 2015 trunk on a 2016+? I haven’t tested it yet, grant told me he was able to do it ---
**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\ **Post date:** [August 9, 2021, 10:59pm UTC](https://community.electricforum.com/t/2016-high-voltage-conversion-successful/22001/23 "2021-08-09T22:59:44Z")
What did you use for constant 12v? I just thought of it. You didn’t use the dci charger like I did. ---
**Author:** ![djgabriel2004](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/djgabriel2004/32/12304_2.png) [@djgabriel2004](https://community.electricforum.com/u/djgabriel2004)\ **Post date:** [August 9, 2021, 11:16pm UTC](https://community.electricforum.com/t/2016-high-voltage-conversion-successful/22001/24 "2021-08-09T23:16:10Z")
Found the same sevcon style dc dc converter but capable to go up to 120v Here the specs ![image](https://canada1.discourse-cdn.com/flex030/uploads/electricforum/original/2X/6/604de9b4b0c319d1ecb8a26ed076c77df6de7fc8.jpeg) ![image](https://canada1.discourse-cdn.com/flex030/uploads/electricforum/original/2X/a/a27adc7bcf9294d565081eeac8b2faa2581360ad.jpeg) its almost plug and play. There’s an easy mod that needs to be done (jump the 4th and 5th pin) to make it work. ---
**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\ **Post date:** [August 10, 2021, 12:57am UTC](https://community.electricforum.com/t/2016-high-voltage-conversion-successful/22001/25 "2021-08-10T00:57:19Z")
I thought the new Gems needed a battery for 12v dc to start, and the 12v converter came on with the key. Do you have a 12v battery? ---
**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\ **Post date:** [August 10, 2021, 1:12am UTC](https://community.electricforum.com/t/2016-high-voltage-conversion-successful/22001/26 "2021-08-10T01:12:36Z")
Reason for asking. Thinking of buying a bunch of these surplus 80v 300w converters. Not sure if they work without a constant 12v out. ![image](https://canada1.discourse-cdn.com/flex030/uploads/electricforum/original/2X/d/d5ea641bd37755c80f3196eecce4a1307c9643ad.jpeg) 5 wire plug in the Gem? ---
**Author:** ![djgabriel2004](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/djgabriel2004/32/12304_2.png) [@djgabriel2004](https://community.electricforum.com/u/djgabriel2004)\ **Post date:** [August 10, 2021, 1:30am UTC](https://community.electricforum.com/t/2016-high-voltage-conversion-successful/22001/27 "2021-08-10T01:30:33Z")
> [@Inwo](#): > > Do you have a 12v battery? I do have a 12v battery, the 5th pin is “enable” I jumped it to +in The original dc dc has 4 pins, the gem cuts the input power when the ignition is turned OFF. In this case it works the same way. With the 5t pin jumped Don’t buy them if they are the part 00010011. I’ve read that Polaris replaced them because they used to catch on fire. I can give you the name of the guy I bought it from. You will need the 5 pin connector too ---
**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\ **Post date:** [August 10, 2021, 1:55am UTC](https://community.electricforum.com/t/2016-high-voltage-conversion-successful/22001/28 "2021-08-10T01:55:05Z")
> [@djgabriel2004](#): > > 00010011 These are not Gem parts. Sevcon 622711202. The only car that I did, did not have the aux. battery. It used a tap from traction battery #1. So I used the dci 12v always on output. As I’m out of chargers, looking for another way to get 12v to key. $75 without plug. “Can be used to charge a battery” 🙂 > **[Sevcon DC/DC Isolated Converter / Voltage Reducer 72 to 12V, 300 Watt -...](https://evdrives.com/sevcon-dc-dc-isolated-converter-voltage-reducer-72-to-12v-622-11202-5-pin/)** > > Sevcon DC/DC Converter / Voltage Reducer 72 to 12V - 622/11202 ---
**Author:** ![djgabriel2004](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/djgabriel2004/32/12304_2.png) [@djgabriel2004](https://community.electricforum.com/u/djgabriel2004)\ **Post date:** [August 10, 2021, 2:03am UTC](https://community.electricforum.com/t/2016-high-voltage-conversion-successful/22001/29 "2021-08-10T02:03:58Z")
It should work, Mine is 500w, I know you like the plug and play things, find a female and make a harness from 4 to 5 pin. Yea it charges the battery (13.8 when ignition is ON) ---
**Author:** ![djgabriel2004](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/djgabriel2004/32/12304_2.png) [@djgabriel2004](https://community.electricforum.com/u/djgabriel2004)\ **Post date:** [August 10, 2021, 2:09am UTC](https://community.electricforum.com/t/2016-high-voltage-conversion-successful/22001/30 "2021-08-10T02:09:31Z")
I’ve a charger left, brand new if you need it, I have 2 actually A dci and a Chinese one 30A (96v non canbus) Well I have 3 actually… the other one is can enabled so we can change voltages. But I might use it in parallel with the one I have installed now. Ok I think I have 4… with the deltaq 48v I took from the 2016+ 🤣 Damn ---
**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\ **Post date:** [August 10, 2021, 3:53am UTC](https://community.electricforum.com/t/2016-high-voltage-conversion-successful/22001/31 "2021-08-10T03:53:40Z")
I’m always short of 48v chargers. I still need a solution for the non 12v battery cars. Upgrade them first, maybe. Add one relay and a battery, I guess. ---
**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\ **Post date:** [August 10, 2021, 3:59am UTC](https://community.electricforum.com/t/2016-high-voltage-conversion-successful/22001/32 "2021-08-10T03:59:58Z")
> [@djgabriel2004](#): > > from 4 to 5 pin. My 2016 e2 had the adaptor on it. The other way iirc. Must have been an upgrade or production change. ---
**Author:** ![djgabriel2004](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/djgabriel2004/32/12304_2.png) [@djgabriel2004](https://community.electricforum.com/u/djgabriel2004)\ **Post date:** [August 10, 2021, 4:42am UTC](https://community.electricforum.com/t/2016-high-voltage-conversion-successful/22001/33 "2021-08-10T04:42:47Z")
the 5th pin will turn ON the converter if connected it to B+. In that case It will be always ON like the Dci always on Not sure what’s the dci idle consumption, this is 85mA it should be similar IMO. No need a battery IMO Unless you want a battery, in that case Iwould go with a Relay like you mentioned ---
**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\ **Post date:** [August 10, 2021, 12:10pm UTC](https://community.electricforum.com/t/2016-high-voltage-conversion-successful/22001/34 "2021-08-10T12:10:26Z")
Not good imo to have dc circuits live all the time. Maybe a tiny dc-dc at the battery, replacing the 12v tap is simplest. Or another on of these low cost Sevcons. That means two per car. 🙂 ---
**Author:** ![djgabriel2004](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/djgabriel2004/32/12304_2.png) [@djgabriel2004](https://community.electricforum.com/u/djgabriel2004)\ **Post date:** [August 10, 2021, 5:18pm UTC](https://community.electricforum.com/t/2016-high-voltage-conversion-successful/22001/35 "2021-08-10T17:18:32Z")
Yes I wouldn’t do it that way. I thought about that because you mention you do that with dci, always ON 12v isn’t that how DCI works? I thought the 12v was always ON and the GEM was Switching the 12v side It would be better if the DCDC is Not ON all the times In my case it turns off with the Ignition. the old one used to turn off with the ignition as well. But I don’t know how it works with non Battery cars. ---
**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\ **Post date:** [August 10, 2021, 7:21pm UTC](https://community.electricforum.com/t/2016-high-voltage-conversion-successful/22001/36 "2021-08-10T19:21:04Z")
Non battery cars use a 12v tap from main battery. Not possible with lithium, so correct, we use dci. ---
**Author:** ![djgabriel2004](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/djgabriel2004/32/12304_2.png) [@djgabriel2004](https://community.electricforum.com/u/djgabriel2004)\ **Post date:** [August 10, 2021, 7:38pm UTC](https://community.electricforum.com/t/2016-high-voltage-conversion-successful/22001/37 "2021-08-10T19:38:02Z")
Got it, seems like a solution is needed for Non aux battery and Lithium conversion. In my case, the 12v aux battery was connected in parallel with Traction battery #1 thru the BMC so I thought it was receiving the charge from that battery however after connecting the new Dc DC with the original pins (+ enabled jumped) I see the voltage at the terminals of the aux battery going from ~12v to 13.8v when the ignition is turned ON. The big red wire that used to got to Positive battery #1 is disconnected. ---
**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\ **Post date:** [August 10, 2021, 8:32pm UTC](https://community.electricforum.com/t/2016-high-voltage-conversion-successful/22001/38 "2021-08-10T20:32:49Z")
> [@djgabriel2004](#): > > The big red wire that used to got to Positive battery #1 is disconnected. Yes, that’s part of the upgrade. Mine is still connected. [Previous page](https://community.electricforum.com/t/2016-high-voltage-conversion-successful/22001.md?page=1)