Charging port.

Cant get your radio to work? General Hardware issues?
Rad
Posts: 455
Joined: Wed Apr 20, 2016 3:43 pm
Country: Austria
Contact:

Re: Charging port.

Post by Rad »

Great to know that is normal to disconnect it when on. :D
At this very moment: Charger says 8,19v,
9xtreme said 8.1v (I might need to adjust it manually)
Polimeter in battery said 7,94v

Battery in place, charging, polimeter in mosfet, positive in center, negative in left leg it said 8,20
Battery in place, charging polimeter in mosfet, positive in right leg, negative in left leg, said 8,09v
I hope that brings you loads of info.
https://radindustries.wordpress.com/

User avatar
MikeB
9x Developer
Posts: 17990
Joined: Tue Dec 27, 2011 1:24 pm
Country: -
Location: Poole, Dorset, UK

Re: Charging port.

Post by MikeB »

You are measuring from the Gate, not between Drain and Source.
Please measure, with the meter, between the two pads of the original diode.

Mike
erskyTx/er9x developer
The difficult we do immediately,
The impossible takes a little longer!
Rad
Posts: 455
Joined: Wed Apr 20, 2016 3:43 pm
Country: Austria
Contact:

Re: Charging port.

Post by Rad »

Between the two pads of the original diode I got right now 0,04v when charging.
0,00 when not charging.

By the way, charger said battery is full now. (8.2v) radio said 8.3, and poli in battery said 8.07v
https://radindustries.wordpress.com/
User avatar
MikeB
9x Developer
Posts: 17990
Joined: Tue Dec 27, 2011 1:24 pm
Country: -
Location: Poole, Dorset, UK

Re: Charging port.

Post by MikeB »

0.04V looks good while charging.

Mike
erskyTx/er9x developer
The difficult we do immediately,
The impossible takes a little longer!
User avatar
jhsa
Posts: 19480
Joined: Tue Dec 27, 2011 5:13 pm
Country: Germany

Re: Charging port.

Post by jhsa »

I think I have Mosfets on some of my radios charging circuit. Will try charging them with a B6 charger tomorrow. But I have NiMh batteries on my radios. I have never charged any Lithium battery inside a radio. I like my radios a lot ;) :P :mrgreen:

João
My er9x/Ersky9x/eepskye Video Tutorials
https://www.youtube.com/playlist?list=PL5uJhoD7sAKidZmkhMpYpp_qcuIqJXhb9

Donate to Er9x/Ersky9x:
https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=YHX43JR3J7XGW

Rad
Posts: 455
Joined: Wed Apr 20, 2016 3:43 pm
Country: Austria
Contact:

Re: Charging port.

Post by Rad »

jhsa wrote: Sat Mar 20, 2021 12:54 am I think I have Mosfets on some of my radios charging circuit. Will try charging them with a B6 charger tomorrow. But I have NiMh batteries on my radios. I have never charged any Lithium battery inside a radio. I like my radios a lot ;) :P :mrgreen:

João
Well, those li ions are super safe. I have never heard/seen anybody having problems with those 18650 packs, and they are everywhere, E-bikes, tesla cars, electric tools, lawn mowers...

If they were Lipo, then yes, are very dangerous, but those li ion are another story.

Anyway, yeah, keep us informed when you test it!.

So far it seems it works, but the only thing that worries me is the voltage difference.
https://radindustries.wordpress.com/
User avatar
jhsa
Posts: 19480
Joined: Tue Dec 27, 2011 5:13 pm
Country: Germany

Re: Charging port.

Post by jhsa »

There should not be any voltage drop with a Mosfet..

João
My er9x/Ersky9x/eepskye Video Tutorials
https://www.youtube.com/playlist?list=PL5uJhoD7sAKidZmkhMpYpp_qcuIqJXhb9

Donate to Er9x/Ersky9x:
https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=YHX43JR3J7XGW
Rad
Posts: 455
Joined: Wed Apr 20, 2016 3:43 pm
Country: Austria
Contact:

Re: Charging port.

Post by Rad »

Hi, as a small update here, I must say everything works as it should. I am very happy, and yet again, I could have not done it without your help!
https://radindustries.wordpress.com/
User avatar
jhsa
Posts: 19480
Joined: Tue Dec 27, 2011 5:13 pm
Country: Germany

Re: Charging port.

Post by jhsa »

Cool, Well done :D ;)

João
My er9x/Ersky9x/eepskye Video Tutorials
https://www.youtube.com/playlist?list=PL5uJhoD7sAKidZmkhMpYpp_qcuIqJXhb9

Donate to Er9x/Ersky9x:
https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=YHX43JR3J7XGW

Post Reply

Return to “Hardware”