# Heltec CubeCell - part 1

**URL:** <https://www.thethingsnetwork.org/forum/t/heltec-cubecell-part-1/30684>\
**Category:** Heltec CubeCell\
**Created:** [October 11, 2019, 1:12pm UTC](https://www.thethingsnetwork.org/forum/t/heltec-cubecell-part-1/30684 "2019-10-11T13:12:18Z")\
**Posts on this page:** 1\
**Showing post:** 93

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**Author:** ![bluejedi](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/bluejedi/32/44639_2.png) [@bluejedi](https://www.thethingsnetwork.org/forum/u/bluejedi)\
**Post date:** [February 8, 2020, 7:38pm UTC](https://www.thethingsnetwork.org/forum/t/heltec-cubecell-part-1/30684/93 "2020-02-08T19:38:39Z")

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I did a small test with the standard LoRaWAN.ino example.

When powered by LiPo battery via the battery connector the CubeCell board uses only 8.5 uA during deep sleep! 😃 👍

When externally powered directly on the 3.3V pin, either by LiFePO4 (3.2V nominal) or by two Alkaline batteries (2 x 1.5V = 3.0V nominal) the CubeCell board uses only 3 to 3.5 uA in deep sleep.

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