TJDJ Posted December 6, 2017 Report Share Posted December 6, 2017 anyone come across this the problem i'm having is i set it 70w press the power button and it shows its only giving about 18w at 8.5a and only 1.8v i have tried the tank on my other 75w and works fine its just on this mod as though it's not giving enough voltage to run at 70w checked wiring all fine Link to comment Share on other sites More sharing options...
giz_60 Posted December 6, 2017 Report Share Posted December 6, 2017 (edited) Can you post a screenshot/print screen of Device Monitor in Escribe with the following fields checked...Pack, Power, Power Set, Temperature, Temperature Set, Cold Ohms & Live Ohms Edited December 6, 2017 by giz_60 Edit Link to comment Share on other sites More sharing options...
TJDJ Posted December 6, 2017 Author Report Share Posted December 6, 2017 hi thanks for the quick reply hope you can shed some light Link to comment Share on other sites More sharing options...
giz_60 Posted December 6, 2017 Report Share Posted December 6, 2017 (edited) Ok...now how about one while firing the device... Edit: And what kind of wire & atomizer & mod are you using? Edited December 6, 2017 by giz_60 Edit 1 Link to comment Share on other sites More sharing options...
TJDJ Posted December 6, 2017 Author Report Share Posted December 6, 2017 i'm using the manta works fine on all my other 75w mods its got 2 fused claptons 3mm dia been using the tank a few months with no problems the problem is on a Athena pride which i have 2 and it works fine on one i even tried a different tank as you can see when firing it drops straight down Link to comment Share on other sites More sharing options...
TJDJ Posted December 6, 2017 Author Report Share Posted December 6, 2017 on this one i've ticked the currant & voltage which is showing 8.26a and only 1.88 v Link to comment Share on other sites More sharing options...
giz_60 Posted December 6, 2017 Report Share Posted December 6, 2017 You are having a severe battery sag...either a weak/bad cell or bad/dirty connection... 1 Link to comment Share on other sites More sharing options...
giz_60 Posted December 6, 2017 Report Share Posted December 6, 2017 Look at your battery voltage...2.75v Link to comment Share on other sites More sharing options...
TJDJ Posted December 6, 2017 Author Report Share Posted December 6, 2017 yea thanks for that i tried a different battery that i know is good iv'e looked at the connections and seem ok Link to comment Share on other sites More sharing options...
giz_60 Posted December 6, 2017 Report Share Posted December 6, 2017 Your not getting enough power to the board...usually a sign of a weak/bad cell or a connection issue...if that mod has a screw on battery cover, then I would recommend cleaning all the threads etc. really good with so iso alcohol...I have had similar issues before with that type of setup and cleaning made a big difference... 1 Link to comment Share on other sites More sharing options...
TJDJ Posted December 6, 2017 Author Report Share Posted December 6, 2017 ill go through all the connections it must be one of them as i say iv'e tried a battery from my other mod so iv'e ruled the battery out Link to comment Share on other sites More sharing options...
TJDJ Posted December 8, 2017 Author Report Share Posted December 8, 2017 (edited) Think i have found the problem i'm guessing it needs a new board as iv'e stripped it down and checked the wire going to the board and it's showing 3.7v which is fine but the wire that comes from the board that goes to the 510 is only showing 1.88v from the connection off the board so i'm guessing it could be a resistor or something that's gone whats your thoughts Edited December 8, 2017 by TJDJ Link to comment Share on other sites More sharing options...
VapingBad Posted December 8, 2017 Report Share Posted December 8, 2017 As @giz_60 said I think it is the battery sag before it gets to the board, the output voltage is tailored to the load and wattage and you can't look at it as a simple resistive loss. My best advise would be to check the ground connections and the battery connections. 1 Link to comment Share on other sites More sharing options...
TJDJ Posted December 9, 2017 Author Report Share Posted December 9, 2017 hi the sag is not before it gets to the board i have checked the power to the board while firing with a multimeter and is ok is the voltage coming back off the board to the 510 is where it drops i checked the out put direct from the board and thats where it's dropped to 1.8v there is no short or anything so im guessing a resistor or something on the board has gone Link to comment Share on other sites More sharing options...
giz_60 Posted December 9, 2017 Report Share Posted December 9, 2017 The battery pack sag you are seeing in Device Monitor is an input voltage sag, not output...this is what the board is reading when firing... Link to comment Share on other sites More sharing options...
giz_60 Posted December 9, 2017 Report Share Posted December 9, 2017 Quick question...is this the same mod that you posted about in another thread ( on the negative wire there is a plate that has a shrink tube on it then the wire at the other end and goes to the board)...if so, then you might want to consider replacing that wire with a solid piece of wire...just a thought!!! Link to comment Share on other sites More sharing options...
TJDJ Posted December 9, 2017 Author Report Share Posted December 9, 2017 yea i got that wrong its a plate on the positive wire under the shrink tube was like white tape or something the wire came from the connection of the top of the battery to the plate thing and from the other end of the plate it went to the board Link to comment Share on other sites More sharing options...
giz_60 Posted December 9, 2017 Report Share Posted December 9, 2017 Same thing applies..you might want to consider replacing that with a solid piece of wire. There shouldn't be any type of interruption of the circuit from the battery to the board. The positive wire would be even more so because the board is going to be make contact with ground through the mount screws & the metal case... Link to comment Share on other sites More sharing options...
TJDJ Posted December 9, 2017 Author Report Share Posted December 9, 2017 yea i will make a direct connection iv'e no idea what it is i even looked at my other athena pride which works fine and that for some reason has the same plate thing Link to comment Share on other sites More sharing options...
TJDJ Posted December 9, 2017 Author Report Share Posted December 9, 2017 This is on the good one just thought i'd post a pic of the plate thing Link to comment Share on other sites More sharing options...
giz_60 Posted December 9, 2017 Report Share Posted December 9, 2017 On all my 75's & 75C's, they have a solid piece of wire on both the positive & negative, with the exception of the mods that transfer the ground through the metal case. If you don't have a wire from the battery tube to the board, check all your board mount screws are tight as well...have seen that problem before as well...just a thought... Link to comment Share on other sites More sharing options...
TJDJ Posted December 9, 2017 Author Report Share Posted December 9, 2017 thanks for your reply all my other DNA's is a straight wire but for some reason the pride has this the wire from the top of that plate goes to the positive on the battery tube so it's confused me what the plate does Link to comment Share on other sites More sharing options...
TJDJ Posted January 31, 2018 Author Report Share Posted January 31, 2018 (edited) An update i think i have now found out what the problem was with it sagging i found the owner had try to repair it but the wire was only rated 8 amp which at the time i didn't know and with it open i could see when pressing the fire button the wire was smoking so quick question again as i will replace the wire i was thinking 30 to 35 amp rated wire would that be correct thanks Edited January 31, 2018 by TJDJ Link to comment Share on other sites More sharing options...
retird Posted January 31, 2018 Report Share Posted January 31, 2018 See the wire sizing in the wiring section of this data sheet for the 75.... it may help.... https://downloads.evolvapor.com/dna75.pdf Link to comment Share on other sites More sharing options...
TJDJ Posted February 1, 2018 Author Report Share Posted February 1, 2018 Thanks for that retird thats helped a lot cheers Link to comment Share on other sites More sharing options...
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