[DNA 250 only charging at .59a]

bashct said:

So have you figured out what the problem was yet?

I am hearing that there was a run of 100 or so boards that has the wrong component and they do this. Answer is send it in for replacement. Problem is I don't want to disassemble mod at the moment. One day I am going o out another board in there and send it back but not worried till then. It has a 5200mah battery so it last 2 days or more between charges and charges overnight so I just deal with it

[Two DNSA 250 boards will not connect to escribe]

I have 2 brand new boards that are not recognized by any of my Windows systems that recognize other devices. I have uninstalled and reinstalled escribe numerous times trying to resolve the issue. I have also sent a RMA request and have not gotten a response in over a week. 
Attached are screens of the error message from each board. 

[DNA 250 only charging at .59a]

ChunkyButt200 said:

not really the same USB voltage, as you can see at 4.27v the black mod is limiting the current down to 1.3a. that .01v DOES make a difference. on all of my DNA 250 mods the USB voltage rarely goes below 4.65v. this insures enough head room and proper charging. i use USB cables that are charge only, when charging. this style USB cable allows more room for larger gauge charging wires. it could be a bad charging circuit on the silver mod but i would invest in a good USB cable that doesn't let the USB voltage sag so much. whenever you see the USB voltage sagging down to 4.2X, it's time to get a good USB cable or wall wart (USB power source). we need to provide the board enough USB voltage head room before condemning the board.

here's what i use..... just an example.

https://www.amazon.com/PortaPow-Specialised-3-3ft-20AWG-Charge/dp/B00RQ5AZ6Q/ref=sr_1_1?ie=UTF8&qid=1489955435&sr=8-1&keywords=portapow+usb+cable

I have ordered some larger cables and better charging block but have tried all cables I have and am having the same result. I am thinking it is a charging circuit on the board and really don't want to have to rip it out and rma the board, if I do I am going to repolish the scratches from enclosure and clear coat to avoid them coming back. Maybe John or Brandon will chime in and it's a simple fix. I will update post when other cables and block arrive.

[DNA 250 only charging at .59a]

ChunkyButt200 said:

RCM Vapes......you lipo settings look fine. your board temp seems OK. your cells appear to be balanced. however, your USB voltage is sagging severely down to 4.26v. when the DNA board sees the USB voltage drop down to 4.27v and below, it limits it's current draw. basically your not supplying enough power to the board. this can be a crappy USB cable, a USB port incapable of providing the necessary power. you should set, through EScribe, to see USB VOLTAGE on your DNA mod's screen and notice the voltage during charging. this will help you pick a good setup (charger + USB cable).

I would understand if this were the case on all mods but it is this mod in particular. The same USB block and cable provide 2a (1.97a) charging on other mods without issue. I will set USB voltage on screen of two different mods and use various cables. Same block with the same cable produces same charging voltage and different amp. First picture is mod in question Second picture is another mod with same block and cable.

[DNA 250 only charging at .59a]

Wayneo said:

Stolen from 2 of the finest on here:

 

With Device Monitor showing you just hit the "prt sc" button on your computer.

Open a Paint software program and click on "Paste".

You can change size, orientation, and etc. in the Paint software.

Save this to your computer.

Attach the saved file to a post here.

 

OR

 

(if you press [ALT]+[PRT SCN], open MSPaint and paste [CTRL]+[V] you have a screen shot from any program, that you can save and upload)

 

Best I can do on tablet is picture with phone, print screen acts idiotic. I'll try though

[DNA 250 only charging at .59a]

ChunkyButt200 said:

can you post a screenshot of device monitor with the battery options and board temp boxes ticked? also a screenshot of your battery settings. what version firmware are you running?

First picture is of board screen when attached to wall charger that has verified output of 1.97a on another DNA 250. Second picture is of battery settings. Third picture is of device monitor with USB current and device board temp checked. Fourth and fifth picture with all battery settings checked. Firmware version 1.2 SP5

[DNA 250 only charging at .59a]

Recently built a DNA 250 with a 5200mah lipo and the board is only allowing .59a input.
I have tested cable and charging box on other DNA 250 mods and it supplies 1.97a so it has to be in the board.
All settings have been changed to the correct value for battery.
I can deal but charging this massive battery at .59a is extremely slow.