# Recommended Power Supply

**URL:** https://discuss.bluerobotics.com/t/recommended-power-supply/3370
**Category:** Blue Robotics Software
**Created:** [September 18, 2018, 3:10am UTC](https://discuss.bluerobotics.com/t/recommended-power-supply/3370 "2018-09-18T03:10:50Z")
**Posts on this page:** 5
**Page:** 1

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### Author: ![sean](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/sean/32/3024_2.png) [@sean](https://discuss.bluerobotics.com/u/sean)
#### Post date: [September 18, 2018, 3:10am UTC](https://discuss.bluerobotics.com/t/recommended-power-supply/3370/1 "2018-09-18T03:10:50Z")

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Can anyone recommend a bench power supply for powering the BlueROV2 through its battery connector? The battery notes a 90A continuous discharge at 14.8V, but perhaps I could power it and operate thrusters with a bit less? My intention is to be able to develop/test on the onboard computer without constantly using and recharging the batteries. Thanks!

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### Author: ![rjehangir](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/rjehangir/32/671_2.png) [@rjehangir](https://discuss.bluerobotics.com/u/rjehangir)
#### Post date: [September 18, 2018, 4:06am UTC](https://discuss.bluerobotics.com/t/recommended-power-supply/3370/2 "2018-09-18T04:06:40Z")

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Hi Sean,

Good idea. We have a BK Precision 1692 in our lab and it does a good job of providing up to 40A at 15V. I think that would work for most situations. You’ll need to send a pretty thick power cable down to the ROV and it shouldn’t be more than a few meters long to avoid a large voltage drop.

Going to higher current than that usually bumps up the price quite a bit on most power supplies.

Hope that helps.

-Rusty

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### Author: ![sean](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/sean/32/3024_2.png) [@sean](https://discuss.bluerobotics.com/u/sean)
#### Post date: [September 18, 2018, 4:41am UTC](https://discuss.bluerobotics.com/t/recommended-power-supply/3370/3 "2018-09-18T04:41:41Z")

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Hey Rusty,

I don’t mean to send the vehicle underwater with the power supply, only to perform lab testing with it. Thanks for the recommendation. I’m going to pick up one of those supplies.

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### Author: ![jerfox-ratw](https://avatars.discourse-cdn.com/v4/letter/j/c0e974/32.png) [@jerfox-ratw](https://discuss.bluerobotics.com/u/jerfox-ratw)
#### Post date: [September 19, 2018, 1:44am UTC](https://discuss.bluerobotics.com/t/recommended-power-supply/3370/4 "2018-09-19T01:44:46Z")

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I’ve just been using an old laptop power supply that I had laying around ~ 14v / 3A. As long as I’m not running the thrusters, it works great for just doing bench work/testing on the computer.

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### Author: ![sean](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/sean/32/3024_2.png) [@sean](https://discuss.bluerobotics.com/u/sean)
#### Post date: [September 19, 2018, 2:50am UTC](https://discuss.bluerobotics.com/t/recommended-power-supply/3370/5 "2018-09-19T02:50:44Z")

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Thanks @jerfox-ratw. Good to know that that works alright as well.
