# Did I just fry my flight core?

Source: https://forum.modalai.com/topic/639/did-i-just-fry-my-flight-core
Category: ESCs, Sensors and Accessories (https://forum.modalai.com/category/15/escs-sensors-and-accessories)
Tags: power-module
Posted: 2022-01-07 22:01:50 UTC by jskard
Replies: 2 · Views: 1671

## jskard · 2022-01-07 22:01:50 UTC

I inadvertently connected a 19V supply to the Barrel Jack on my Voxl m500 drone. What are the odds I only damaged the power module and not my flight core? Are there any easy ways to check?

## Reply by Vinny (ModalAI staff) · 2022-01-07 22:31:01 UTC

Hi,
On older drones where we have a V2 power module with barrel jack access port for the flight controller, the maximum that can sustain is 5.5V (5V +/- 10%). 
It is very likely you exposed several circuits on FlightCore to a condition much worse than absolute maximum and I would expect either outright failure to operate or worse (fusing/smoking). If by chance your hardware still works, it likely has a latent defect that will fail later. In my honest opinion, I would only power it on outside in the event of fusing/smoke, but would tag it and recycle it or use it for a mechanical reference.

The power module is still likely OK. Most components on that design allow operation above 20V.

Hope that helps.

## Reply by Eric Katzfey (ModalAI staff) · 2022-01-14 17:01:31 UTC

@jskard Would it be possible for you to please open up new forum posts for these new questions so that they can be better tracked? Thanks!