# Battery current-peaks

**URL:** <https://discuss.bluerobotics.com/t/battery-current-peaks/22690>\
**Category:** Batteries and Chargers\
**Tags:** basic-esc\
**Created:** [March 24, 2026, 3:58pm UTC](https://discuss.bluerobotics.com/t/battery-current-peaks/22690 "2026-03-24T15:58:22Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![EliotBR](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/eliotbr/32/6937_2.png) [@EliotBR](https://discuss.bluerobotics.com/u/EliotBR)\
**Post date:** [March 26, 2026, 7:43pm UTC](https://discuss.bluerobotics.com/t/battery-current-peaks/22690/2 "2026-03-26T19:43:28Z")

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Hi @Erlingns95,

> [@Erlingns95](#):
>
> I cannot seem to find “maximum burst current rating”. Is this usually not an issue?

Definitions of “burst” can vary substantially, so it’s a difficult rating to provide in a meaningful capacity (not to mention the variable impact of the operating conditions).

[This comment](https://discuss.bluerobotics.com/t/bluerov2-total-draw-current-from-t200s-and-basicescs-etc/923/5) covers the main reasoning behind how we’ve sized power cables - in short “use the biggest thing we can fit through a penetrator, and assume standard ROV usage won’t overload it”. Worth noting that cable ratings are generally not made for use in water, which can cool the cables much more effectively than when they’re in air.

> [@Erlingns95](#):
>
> What is the worst case scenario if we pull too high currents for too long?

Overheating the battery, cables, and/or ESCs can all be problematic. In the worst case things can melt and/or burn, resulting in permanent damage to those components, and possibly also some of the components around them.

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