# How can I have 12V and 5,5V?
**URL:** https://foil.zone/t/how-can-i-have-12v-and-5-5v/2480
**Category:** Electronics (ESC, remote, batteries)
**Created:** [August 11, 2018, 12:31am UTC](https://foil.zone/t/how-can-i-have-12v-and-5-5v/2480 "2018-08-11T00:31:59Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@rui\_ribeiro](https://foil.zone/u/rui_ribeiro)
#### Post date: [August 11, 2018, 12:31am UTC](https://foil.zone/t/how-can-i-have-12v-and-5-5v/2480/1 "2018-08-11T00:31:59Z")
Hi guys,
i have a question. I have a SBEC that can make 5,5.5,6,7 or 9 Volts.
My receiver works with 5V so, I have my SBEC with 5V selected. I ordered a computer cooling system for the ESC with a 12V water pump. How can i have those 12V? Do I need another BEC?
Thanks,
PS: My batteries are S6
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### Author:  [@michion](https://foil.zone/u/michion)
#### Post date: [August 11, 2018, 2:16am UTC](https://foil.zone/t/how-can-i-have-12v-and-5-5v/2480/2 "2018-08-11T02:16:05Z")
You could run a step up converter from 5v to 12v into the water pump. Just as easy to install another SBEC. Just make sure it has a 12v option. Lots of people run two SBEC for similar reasons.
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### Author:  [@philippe](https://foil.zone/u/philippe)
#### Post date: [August 11, 2018, 10:16am UTC](https://foil.zone/t/how-can-i-have-12v-and-5-5v/2480/3 "2018-08-11T10:16:45Z")
hello
if you have a schema for your cooling , i am interested because it is necessary to put a vase of expension and how did you fill it ?
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### Author:  [@Hiorth](https://foil.zone/u/Hiorth)
#### Post date: [August 11, 2018, 3:42pm UTC](https://foil.zone/t/how-can-i-have-12v-and-5-5v/2480/4 "2018-08-11T15:42:45Z")
We recently got one of these:
> **[TEN 30-4831WIN | TRACOPOWER TEN 30WIN DC-DC Converter, 5V dc/ 4 A, 420mA...](https://no.rs-online.com/web/p/dc-dc-converters/7065180)**
>
> Buy TRACOPOWER TEN 30WIN DC-DC Converter, 5V dc/ 4 A, 420mA Output, 36 → 75 V dc Input, 30W, Through Hole, +75°C Max TEN 30-4831WIN or other DC-DC Converters online from RS for next day delivery on your order plus great service and a great price from...
It can take a wide range of input voltage and convert it to 5V and 12V. It also has some protection against stupid mistakes 🙂
Super expensive (320 000h/36years lifetime) probably possible to find some cheap alternative on aliexpress or similar.
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### Author:  [@rui\_ribeiro](https://foil.zone/u/rui_ribeiro)
#### Post date: [August 12, 2018, 11:01am UTC](https://foil.zone/t/how-can-i-have-12v-and-5-5v/2480/5 "2018-08-12T11:01:03Z")
Hi Phlilippe,
those are the items i ordered from Aliexpress:
[https://pt.aliexpress.com/item/310mm-Cylinder-Water-Tank-G1-4-Thread-19W-Pump-Computer-Water-Cooling-Radiator-New-Computer-Water/32847354101.html?spm=a2g0s.9042311.0.0.3da2b90amwhvvy](https://pt.aliexpress.com/item/310mm-Cylinder-Water-Tank-G1-4-Thread-19W-Pump-Computer-Water-Cooling-Radiator-New-Computer-Water/32847354101.html?spm=a2g0s.9042311.0.0.3da2b90amwhvvy)
[https://pt.aliexpress.com/item/Cheap-80mm-aluminum-water-cooled-exhaust/32725050079.html?spm=a2g0s.9042311.0.0.3da2b90amwhvvy](https://pt.aliexpress.com/item/Cheap-80mm-aluminum-water-cooled-exhaust/32725050079.html?spm=a2g0s.9042311.0.0.3da2b90amwhvvy)
[https://pt.aliexpress.com/item/Barb-Fitting-Computer-Water-Cooling-Radiator-Copper-Heatsinks-Cooler-Clamp-For-3-8-ID-Turbing-G1/32761237958.html?spm=a2g0s.9042311.0.0.3da2b90amwhvvy](https://pt.aliexpress.com/item/Barb-Fitting-Computer-Water-Cooling-Radiator-Copper-Heatsinks-Cooler-Clamp-For-3-8-ID-Turbing-G1/32761237958.html?spm=a2g0s.9042311.0.0.3da2b90amwhvvy)
[https://pt.aliexpress.com/item/Brass-G1-4-External-Thread-for-9-5-12-7mm-Computer-PC-Water-Cooling-System-Tube/32829999390.html?spm=a2g0s.9042311.0.0.3da2b90amwhvvy](https://pt.aliexpress.com/item/Brass-G1-4-External-Thread-for-9-5-12-7mm-Computer-PC-Water-Cooling-System-Tube/32829999390.html?spm=a2g0s.9042311.0.0.3da2b90amwhvvy)
The Water container is too big… i should have ordered a smaller one like this:
[https://pt.aliexpress.com/item/SC600-140mm-Computer-water-cooling-cooler-Acrylic-cylindrical-transparent-water-tank-pump/32620236019.html?spm=a2g03.10010108.1000014.4.70c87e7eB8PUhe&gps-id=pcDetailBottomMoreOtherSeller&scm=1007.13338.108277.000000000000000&scm\_id=1007.13338.108277.000000000000000&scm-url=1007.13338.108277.000000000000000&pvid=8f6c22c2-8079-43fd-b049-125256f236f6](https://pt.aliexpress.com/item/SC600-140mm-Computer-water-cooling-cooler-Acrylic-cylindrical-transparent-water-tank-pump/32620236019.html?spm=a2g03.10010108.1000014.4.70c87e7eB8PUhe&gps-id=pcDetailBottomMoreOtherSeller&scm=1007.13338.108277.000000000000000&scm_id=1007.13338.108277.000000000000000&scm-url=1007.13338.108277.000000000000000&pvid=8f6c22c2-8079-43fd-b049-125256f236f6)
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### Author:  [@MaxMaker](https://foil.zone/u/MaxMaker)
#### Post date: [August 12, 2018, 3:26pm UTC](https://foil.zone/t/how-can-i-have-12v-and-5-5v/2480/6 "2018-08-12T15:26:23Z")
[https://youtu.be/D\_GZR4VGF\_E](https://youtu.be/D_GZR4VGF_E) At 3:28 you can see how I solved this problem with a step down converter. Also known as buck converter.