Patrick.N Posted July 22, 2015 Author Report Posted July 22, 2015 This happens to me only when connecting to EScribe, to reset I have to unplug my battery and balancing and reconnect and all is fine again and charges normally.I do have USB-current and cellvoltages for all cells in display and why I noticed it.
VapingBad Posted July 22, 2015 Report Posted July 22, 2015 OK here Win8.1 64bit USB3 & USB2 almost 500 mA
Patrick.N Posted July 22, 2015 Author Report Posted July 22, 2015 In device tools / diagnostics I just reset usb current limit but no difference, on my decicated usb-charger I normally charge at 700ma, I can still but have to unplug my battery each time after using EScribe
James Posted July 22, 2015 Report Posted July 22, 2015 Hi Patrick.N. What does your board show for Room and Board Temperature?
Patrick.N Posted July 22, 2015 Author Report Posted July 22, 2015 Seems it happens randomly without any help of Escribe as well, it goes up to 0.7A then drops to 0.09 moments later and stays there, weird?
Patrick.N Posted July 22, 2015 Author Report Posted July 22, 2015 Tried with a secondary battery and same
Patrick.N Posted July 22, 2015 Author Report Posted July 22, 2015 Does not happen always on my dedicated usb-charger but seems I can reproduce it every time I connect to EScribe, this is something that occured later hence I set usb-current and cellvoltages in display from day 1, it seems softwarerelated but I'm not really sure.
John Posted July 22, 2015 Report Posted July 22, 2015 If the board temperature is over 130 degrees F or the air temperature is over 113 degrees it will throttle the charge current to 100 milliamps. Is this a 3d printed or plastic case by any chance?
Patrick.N Posted July 22, 2015 Author Report Posted July 22, 2015 It's placed wide open in hammonds and happens without lid as well
Patrick.N Posted July 22, 2015 Author Report Posted July 22, 2015 It's not particurlary hot in sweden either
Patrick.N Posted July 22, 2015 Author Report Posted July 22, 2015 Can we raise those limits a wee bit?, first square thingy feels warm when charging but not overly hot
Patrick.N Posted July 22, 2015 Author Report Posted July 22, 2015 Battery is nanotech 950 so a fairly small one
John Posted July 22, 2015 Report Posted July 22, 2015 Hrm, yeah that doesn't seem like it should be getting that warm unless the board is totally bedded in hot glue or something on the other side. The temperature sensor is down by the USB port, does that part of the board get perceptibly warm? We have some margin on the charger, so we could push the limit up a bit without it causing a problem.
Patrick.N Posted July 22, 2015 Author Report Posted July 22, 2015 I'm switching over to a kanthalbuild which has a lower powerlimit? and see if that makes any difference, I switched to nickel just the other day... the sensorlimits explains my randomness so that's good to know
John Posted July 22, 2015 Report Posted July 22, 2015 How do you have the DNA 200 secured to the project box? Also, have you run case analyzer on your build? The results of that would be quite interesting here.
Patrick.N Posted July 22, 2015 Author Report Posted July 22, 2015 It has a dab of epoxy in front under the shrinktube and adhesive/epoxied arount back of JST-plug so secured very airy, it has plenty of breathingspace on it's right side Running case analyzer it just waits for steady temp (currently +20min), should I increase my ambient temp?
Patrick.N Posted July 22, 2015 Author Report Posted July 22, 2015 I do have some vinyl cutouts on my inside as insulation but I'll doubt that should pose a problem hence it happens without any lid on as well.. switching to kanthal didn't seem to help either, it's been like this past two days only and everything else seems to work as it should.
John Posted July 22, 2015 Report Posted July 22, 2015 Case analyzer takes six hours to run, and you need to start with a fairly discharged battery...
John Posted July 22, 2015 Report Posted July 22, 2015 Did the problem start when you updated the firmware perhaps? What firmware version are you running?
Patrick.N Posted July 22, 2015 Author Report Posted July 22, 2015 Running these nowSetupES_2015-07-16.exe / 2015-07-16.sw-updateBut have switched back to earler builds & firmware afterwards but doesn't seem to help, will try case analyzer in the morning and give my board a good cleanse as well and see if that helps
John Posted July 22, 2015 Report Posted July 22, 2015 Well, the basic issue is that it is running significantly too hot. The question is is it always running hot, or is it just during charging. Case analyzer should be interesting.
Patrick.N Posted July 22, 2015 Author Report Posted July 22, 2015 My wattage usually at 25-30watts and past two days board getting warm like this so could be an update but I'm not sure.This part in particular gets warm, if I take a puff while charging sensor kicks in and lowers charging to 0.09, then I have to wait and unplugging my battery seems to help for it to reset.But will try the case analyzer, should I set USB current to 0 in diagnostics while doing so?
Patrick.N Posted July 22, 2015 Author Report Posted July 22, 2015 That part also gets warm by just vaping without charging but gets even warmer while charging.
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