# Current draw/power information

**URL:** <https://discuss.blues.com/t/current-draw-power-information/1235>\
**Category:** Hardware\
**Created:** [February 4, 2023, 9:04pm UTC](https://discuss.blues.com/t/current-draw-power-information/1235 "2023-02-04T21:04:20Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![jgeckard](https://avatars.discourse-cdn.com/v4/letter/j/d07c76/32.png) [@jgeckard](https://discuss.blues.com/u/jgeckard)\
**Post date:** [February 4, 2023, 9:04pm UTC](https://discuss.blues.com/t/current-draw-power-information/1235/1 "2023-02-04T21:04:20Z")

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I am looking into potentially running these boards on a solar charging system and was wondering what size battery would be required to continue operation for a period of time for situations where light is limited. I cannot find any numbers about current draw in low power states for either of the boards and was wondering if anyone happened to know.

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**Author:** ![robouden](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.blues.com/robouden/32/336_2.png) [@robouden](https://discuss.blues.com/u/robouden)\
**Post date:** [February 6, 2023, 3:00am UTC](https://discuss.blues.com/t/current-draw-power-information/1235/2 "2023-02-06T03:00:57Z")

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jgeckard,

What boards are you thinking of running?

Regards,  
Rob Oudendijk

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**Author:** ![jgeckard](https://avatars.discourse-cdn.com/v4/letter/j/d07c76/32.png) [@jgeckard](https://discuss.blues.com/u/jgeckard)\
**Post date:** [February 6, 2023, 3:26pm UTC](https://discuss.blues.com/t/current-draw-power-information/1235/3 "2023-02-06T15:26:58Z")

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My apologies… should have specified. I am using a sparrow dev kit so I was wanting to power a sparrow reference sensor node with a solar charging system.

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**Author:** ![RobLauer](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.blues.com/roblauer/32/1567_2.png) [@RobLauer](https://discuss.blues.com/u/RobLauer)\
**Post date:** [February 6, 2023, 3:39pm UTC](https://discuss.blues.com/t/current-draw-power-information/1235/4 "2023-02-06T15:39:38Z")

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Hi @jgeckard,

Assuming you are using the provided Sparrow Reference Sensor Node from Blues, it does come with a 2xAAA battery holder. Honestly my personal recommendation would be to drop 2x Lithium AAA batteries in there and not worry about solar at all.

Rob