# Artemis Nano using 50 mA **URL:** \ **Category:** Artemis\ **Created:** [June 6, 2023, 11:44am UTC](https://community.sparkfun.com/t/artemis-nano-using-50-ma/45720 "2023-06-06T11:44:39Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![gauteh](https://yyz1.discourse-cdn.com/sparkfun/user_avatar/community.sparkfun.com/gauteh/32/6710_2.png) [@gauteh](https://community.sparkfun.com/u/gauteh)\ **Post date:** [June 6, 2023, 11:44am UTC](https://community.sparkfun.com/t/artemis-nano-using-50-ma/45720/1 "2023-06-06T11:44:39Z")
Hi, I’ve bought purchased probably close to 60 Redboard Artemis Nanos, and I have had a fair bit of problems. Sometimes the RTC doesn’t work, sometimes its other things. Lately I’ve noticed that several of them use almost 50 mA!! Whereas the same sketch will use 4 mA on the regular Redboard Artemis. Is this a bad batch? A few bad ones? Or all of them currently? Regards, Gaute ---
**Author:** ![gauteh](https://yyz1.discourse-cdn.com/sparkfun/user_avatar/community.sparkfun.com/gauteh/32/6710_2.png) [@gauteh](https://community.sparkfun.com/u/gauteh)\ **Post date:** [June 6, 2023, 12:18pm UTC](https://community.sparkfun.com/t/artemis-nano-using-50-ma/45720/2 "2023-06-06T12:18:00Z")
I am measuring the current using a CurrentRanger, 4.2V in on Vin and GND. I tried three brand new Nanos and they showed 4, 6, and 10 mA each with the default blink-program. I see one with 2 mA and one with 50 mA with my own program. ---
**Author:** ![paulvha](https://avatars.discourse-cdn.com/v4/letter/p/65b543/32.png) [@paulvha](https://community.sparkfun.com/u/paulvha)\ **Post date:** [June 6, 2023, 7:06pm UTC](https://community.sparkfun.com/t/artemis-nano-using-50-ma/45720/3 "2023-06-06T19:06:24Z")
wooow… very weird. Could it be the Apollo3 chip revision? Try the attached sketch. Maybe it will bring some insight? [Get\_Apollo\_rev.zip](https://community.sparkfun.com/uploads/short-url/edSxi8cxUBTtXKT4qt9F4HL1i5n.zip) (819 Bytes)