# Cooling for basic BLue Rob. ESC **URL:** \ **Category:** Speed Controllers (ESCs)\ **Created:** [November 26, 2016, 5:23pm UTC](https://discuss.bluerobotics.com/t/cooling-for-basic-blue-rob-esc/564 "2016-11-26T17:23:06Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![darren-smith-2](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/darren-smith-2/32/732_2.png) [@darren-smith-2](https://discuss.bluerobotics.com/u/darren-smith-2)\ **Post date:** [November 26, 2016, 5:23pm UTC](https://discuss.bluerobotics.com/t/cooling-for-basic-blue-rob-esc/564/1 "2016-11-26T17:23:06Z")
Will the BR basic ESC require cooling such as by fan or heat sink? My installation is for an RC boat with two T100’s and two basic ESC’s. The ESC’s will be housed within the boat hull with little air movement. Air temps may be in the upper 30’s (C) during usage. ---
**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:** [November 27, 2016, 2:57am UTC](https://discuss.bluerobotics.com/t/cooling-for-basic-blue-rob-esc/564/2 "2016-11-27T02:57:11Z")
Hi Darren, It depends on how heavily the ESCs will be used. If they will be run constantly, then they will probably need cooling. If they are only used occasionally, then they may not. For example, on the BlueROV2 the thrusters are usually not running most of the time, so the ESCs are fine. For most boat applications I would recommend cooling because you’re generally running constantly. -Rusty ---
**Author:** ![darren-stanley-smith](https://avatars.discourse-cdn.com/v4/letter/d/2acd7d/32.png) [@darren-stanley-smith](https://discuss.bluerobotics.com/u/darren-stanley-smith)\ **Post date:** [November 27, 2016, 7:43pm UTC](https://discuss.bluerobotics.com/t/cooling-for-basic-blue-rob-esc/564/3 "2016-11-27T19:43:34Z")
Hello Rusty, That makes perfect sense. Cheers for responding so quickly and on a holiday weekend! -Darren ---
**Author:** ![yurik\_il](https://avatars.discourse-cdn.com/v4/letter/y/e36b37/32.png) [@yurik\_il](https://discuss.bluerobotics.com/u/yurik_il)\ **Post date:** [June 15, 2017, 3:33pm UTC](https://discuss.bluerobotics.com/t/cooling-for-basic-blue-rob-esc/564/4 "2017-06-15T15:33:08Z")
Hi Rusty. What is the maximum operating temperature of the blue ESC? If you have the exact number its excellent if not I would like to have the approximate value. Best Regards, Yuri ---
**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:** [June 15, 2017, 10:31pm UTC](https://discuss.bluerobotics.com/t/cooling-for-basic-blue-rob-esc/564/5 "2017-06-15T22:31:53Z")
Hi Yuri, We don’t have an exact number but most of the electrical components are rated for 85C maximum. It usually run much much cooler than that in water. -Rusty ---
**Author:** ![yurik\_il](https://avatars.discourse-cdn.com/v4/letter/y/e36b37/32.png) [@yurik\_il](https://discuss.bluerobotics.com/u/yurik_il)\ **Post date:** [July 3, 2017, 8:54am UTC](https://discuss.bluerobotics.com/t/cooling-for-basic-blue-rob-esc/564/6 "2017-07-03T08:54:28Z")
Hi Rusty, Thank you for your reply. Just to be sure - 85C is the environment temperature right? Not the temperature of the ESC itself? Yuri ---
**Author:** ![darren-stanley-smith](https://avatars.discourse-cdn.com/v4/letter/d/2acd7d/32.png) [@darren-stanley-smith](https://discuss.bluerobotics.com/u/darren-stanley-smith)\ **Post date:** [July 3, 2017, 9:40am UTC](https://discuss.bluerobotics.com/t/cooling-for-basic-blue-rob-esc/564/7 "2017-07-03T09:40:22Z")
Just following up here. I put some small CPU type fans on my ESC’s. With constant usage (50% power to the motors) they seem to be fine. ---
**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:** [July 5, 2017, 11:52pm UTC](https://discuss.bluerobotics.com/t/cooling-for-basic-blue-rob-esc/564/8 "2017-07-05T23:52:11Z")
Hi Yuri, 85C is the temperature of the ESC itself, not the environment. -Rusty