Skyzone Cobra X V2 goggles wont turn on properly?

[vernal vector]

So today I was trying discharge my 18650 batteries for my goggles for long term storage. I one in my goggles with it on, checking it every 5 minutes for around half an hour. When it said that the battery was at half capacity in the goggles, I held down the power button and turned off my goggles. Low and behold, after switching out the battery for another, whenever I try to turn them on no start-up screen is displayed, and it is just a backlit black screen. None of the buttons work, I can't even power them off. I have to remove the battery to turn them off now. I tried powering it from a 6s and 4s lipo, no dice. USB powering, no dice. Not really sure where to go from here, might contact customer support later today. Is there any way to solve this without replacing a part or returning them?

Also I doubt I'll be able to return them but I ordered them from racedayquads in February of 2023 and am just now running into this problem as of 10 minutes ago...

[vernal vector]

Just really bummed because I blew around 200$ I think I can hardly remember and for them to stop working like this with such light use is well, disheartening to say the least.

[vernal vector]

<@&851550874227441665>

[worn pawn]

Did you keep the battery polarity correct while changing them?

[vernal vector]

yes

i checked that actually

in the case that i didnt check would that cause irreparable damage? just curious so in the future i can make sure to not do that as well. But i can confirm i did not do that

or maybe i did! now im starting to second guess myself... uh oh

im just not going to rule it out as a possibility but i think i did put the battery in right.

[vernal vector]

By the way I did contact the RDQ support because thats where i bought the goggles. But i doubt theyll reply till later in the week because it is MLK Day

If they dont respond then Ill contact daniel at skyzone cause thats on this little card that came in the box

[kind trellis]

I would honestly be surprised if the goggles didn't have some sort of reverse voltage protection

Especially if plugging the batteries in was as easy as it is with 18650

I would try to talk to rdq, see what they think about it

[vernal vector]

yeah and that backlight is still coming on it just will not do anything with the screen

[kind trellis]

If you did plug the battery in upside down that's on you I am afraid...

Could have cooked the main chip if the goggles aren't too well designed

Talk to race day quads... But like I would say that you may have plugged the battery in upside down

[vernal vector]

D:

[kind trellis]

Cus stuff doesn't usually fail just like that

[vernal vector]

crud. YEah thats why i was kinda second guessing

well

thanks

[kind trellis]

Don't get me wrong

It can

But isn't likely

[vernal vector]

will update when i get a response

yeah of course

i understand

[kind trellis]

Like I know not having reverse voltage protection is stupid

But oh well

[vernal vector]

yeah ill see what i can get from emailing rdq and or skyzone and if i have aynmore questions i post them here

if not then ill makr solved later when goggles are working

[thorn pebble]

i would be surprised if they have it tbh

[kind trellis]

That's so sad. It's literally such a simple thing to implement

[thorn pebble]

ye but thinking about how reverse polarity has ruined so many radios i wouldnt be surprised if they dont have it

[kind trellis]

Ya mean for like

Business

🤣

[thorn pebble]

i mean hell the tx16s doesnt have reverse polarity protection either

unless they changed that with the mk II

[kind trellis]

Bruh

I swear some of the practices companies do rn are so effin shit

Like instead of not including a charger in the box how about y'all make simple safety features

An e fuse would provide all the protection necessary from like 5 diff things

And it's not even 50cents in the individual sale

[thorn pebble]

for goggles i use one of them fatshark cases that has a button to check for voltage, if i reverse the polarity in that the light wont work cuiz that circ would be fried so i have a check before plugging it into the goggles

[kind trellis]

Eh I just put an xt60 onto everything 🤣

[thorn pebble]

but im kinda nervous everytime i put the cells back into my tx16s even tho im pretty maticulous about it

[kind trellis]

My E-Bike, my chargers, ma speakers

[thorn pebble]

well yeah fool proof plugs help for things with plugs

[kind trellis]

I just charge the cells with the radio itself

[thorn pebble]

that circuit died REALLY fast on mine

[kind trellis]

To be faiirr

I work building ebikes

[thorn pebble]

was a huge flaw on the MK 1

[kind trellis]

We had a fried controller die cus the customer plugged an xt60 backwards

It's a 13s7p battery

Like 24ish ah

The capacitor's mind was blown

[thorn pebble]

but to answer this for you: yes if you plugged in backwards and they dotn have a reverse polarity protection it will most likely cause irreperable damage

[kind trellis]

Especially if the main MCU is connected to the batteries without voltage regulation

[thorn pebble]

or the screen drivers

[kind trellis]

I swear if I get into the EE collage degree

I will force e fuses into every single one of my designs 🤣

If I end up as a mech eng idk welp

[thorn pebble]

i probably should make my liion cells into a 2S pack with an xt30 connector for my radio. i do have a spot welder

but im too lazy

[kind trellis]

Bruh

8 spot welds is crazy 🤣

[thorn pebble]

ikr

[kind trellis]

I sometimes do ~5000 in a single shift

Altho, we do have a fancy pneumatic one with auto voltage and current

You press the pedal and make sure it's hitting the right place

[thorn pebble]

well i do have a foot pedal for mint but it dotn do that auuto voltage adjustment

its the sequre SQ-SW2 mini

[vernal vector]

in the case that i didnt is there anything i can do or should i just wait for dustomer support

becuase i might not have but theres a chance i did

[thorn pebble]

customer support is your best bet

[vernal vector]

ok

[kind trellis]

Ah

Well we have 2 types

We have this

and this (idk why we dont use it often. Its legit 5 times faster than a fast human welder)

[vernal vector]

they offered to replace it but now i have to find all of the parts that came with it and i have everything but the usb c cable!

searching for it rn

[thorn pebble]

good luck

[vernal vector]

found one that looks close enough... i hope lol

[vernal vector]

good news! goggles got replaced and I got the V4's with no additional cost.. wondering if theres a difference between v2 and v4?

just got them today and work just fine. will make sure to always plug in battery correctly... lol

tried to figure it out online couldnt get anything

[thorn pebble]

That is awesome, but I can't tell you the difference either lol

[vernal vector]

huh

[thorn pebble]

most likely just some hardware improvements idk

[worthy solstice]

nice! just out of curiosity was it through the shop you got them from or directly from skyzone support?

[vernal vector]

through the shop

either getfpv or rdq i forgot

funnily enough actually when i got the replacement there werent antennas.. good thing i have an upgraded patch and omni for them anyways from truerc or whatever the canadian one is with the x air mk2 or something

its cast to rain for the next few days so no flying yet :(

[worthy solstice]

i see, thanks :)

[frank jewel]

never heard of discharging an 18650 for storage. I have tons of vapes and flashlights just chilling in random places.. never discharged a single one lol

[worthy solstice]

they're lithium ion batteries just like the ones we use for drones, so for long term storage, it's best to keep them around storage voltage

fully charged or fully discharged are both not good

[frank jewel]

Yeah, I was js that’s I’ve never experienced an issue with 18650s and I’ve used them for over a decade. Haven’t had to buy any in years. 🤷

[green idol]

Damn 100+ comments