ICOFUS Posted March 29, 2017 Author Report Share Posted March 29, 2017 Cheers all - Back for round two. About two months ago, I posted about my Triade DNA 250 never getting above 0.58A. Ran a train of chargers and wall warts on it with no difference in charge rates displayed, and being a device acquired 3rd party and no experience wiring/reassembling the board, looks like I may be out the warranty and will have questionable results with sending the board to Evolv for review.So, trying anything further I can to fix it before deciding next steps, I picked up a USB tester. I have it plugged in a dedicated charging port for a laptop dock rated at 5V/2A, showing 5.07V from the dock. Also picked up three fresh VTC6's. Plugged it in and got the same results; 0.57-0.58A.However, the USB tester is reading 4.86V/1.27-1.30A(fluctuating between) while the board screen is reading 4.56V/0.57A. Tried a few other charging systems5V/1.2A wall wart read 5.06V no load - 4.89V/1.29A load5V/2A wall wart read ~5.3V no load - 5.18V/2.32A loadEach rang in about the same at the DNA...~4.54-4.56V, 0.53-0.58A, 2.55-2.57W. Any thoughts on the discrepancies? I have seen other users report similar issues where one DNA 250 displays ~2A and another will not exceed 0.**. Seems the reader is accurate, but no idea what to make of the 0.30V/~0.7A differences between the meter and board figures. Escribe shot attached; the drop and steps up in USB Current were from manually setting max amp to 0.35, 0.5, and 1.0A. Taken after setting the max current in escribe to 0.5A Link to comment Share on other sites More sharing options...
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