VapingBad Posted November 30, 2015 Report Share Posted November 30, 2015 Opako said:What i have found after a closer look it thats the negative pin on the cell 1 is recessed compared to the other ones. That should not be a problem as long as they feel held tight, some people have reported that the plastic rings round the positive terminal can cause a poor contact with some batteries. Link to comment Share on other sites More sharing options...
VapingBad Posted November 30, 2015 Report Share Posted November 30, 2015 The ground strap I was speculating about is shown in the 1st pic in this post. Link to comment Share on other sites More sharing options...
bmclaurin Posted November 30, 2015 Report Share Posted November 30, 2015 FWIW, cell 1 on my Reuleaux also sags more than cells 2 and 3, regardless of how the individual cells are arranged in the cradle. Hmmmmm..... Link to comment Share on other sites More sharing options...
lewisss Posted November 30, 2015 Report Share Posted November 30, 2015 This might be a stab in the dark but are all the balance leads the same length? I had the same issue with a 3x18650 dna I built, two of the leads were short as they were connected close to the balance port.and the other lead was the length of a battery as it had to be connected the other end. Once I remade it with equal length balance leads the issue went away! Link to comment Share on other sites More sharing options...
VapingBad Posted November 30, 2015 Report Share Posted November 30, 2015 lewisss said:This might be a stab in the dark but are all the balance leads the same length? I had the same issue with a 3x18650 dna I built, two of the leads were short as they were connected close to the balance port.and the other lead was the length of a battery as it had to be connected the other end. Once I remade it with equal length balance leads the issue went away!It only has 2 balance wires, number 1 & 2, GND & 3 are jumpers from the battery connection pads, but the negative battery connection goes via the ground tab to the top left ground point on the board and the positive is wired. So as I said above there is a possibility the GND balance connection is higher resistance and why I asked if it is common that cell1 is the low one. Link to comment Share on other sites More sharing options...
dedone Posted December 1, 2015 Author Report Share Posted December 1, 2015 VapingBad said:[QUOTE=lewisss]This might be a stab in the dark but are all the balance leads the same length? I had the same issue with a 3x18650 dna I built, two of the leads were short as they were connected close to the balance port.and the other lead was the length of a battery as it had to be connected the other end. Once I remade it with equal length balance leads the issue went away!It only has 2 balance wires, number 1 & 2, GND & 3 are jumpers from the battery connection pads, but the negative battery connection goes via the ground tab to the top left ground point on the board and the positive is wired. So as I said above there is a possibility the GND balance connection is higher resistance and why I asked if it is common that cell1 is the low one.[/QUOTE]Sorry Vaping, i'm not so "technical", does it mean that i have to send it back (if Wismec reply me) or i can do something to fix it by myself? Link to comment Share on other sites More sharing options...
Spector NS5 RD Posted December 1, 2015 Report Share Posted December 1, 2015 same here with cell one but it flip flops between draining harder and less cells two and three.second screen shot is higher wattage. edit........you know what, mine ain't so bad. no 3 cells are going to drain absolutely identical. I think I'm making a mountain out of a single cocaine line. If it gets worse i'll update. Link to comment Share on other sites More sharing options...
Opako Posted December 1, 2015 Report Share Posted December 1, 2015 Something is very wrong with this Reuleaux some times it works fine and from nothing it starts to check baterry i think im going to return mine... Link to comment Share on other sites More sharing options...
VapingBad Posted December 1, 2015 Report Share Posted December 1, 2015 dedone said:[QUOTE=VapingBad][QUOTE=lewisss]This might be a stab in the dark but are all the balance leads the same length? I had the same issue with a 3x18650 dna I built, two of the leads were short as they were connected close to the balance port.and the other lead was the length of a battery as it had to be connected the other end. Once I remade it with equal length balance leads the issue went away!It only has 2 balance wires, number 1 & 2, GND & 3 are jumpers from the battery connection pads, but the negative battery connection goes via the ground tab to the top left ground point on the board and the positive is wired. So as I said above there is a possibility the GND balance connection is higher resistance and why I asked if it is common that cell1 is the low one.[/QUOTE]Sorry Vaping, i'm not so "technical", does it mean that i have to send it back (if Wismec reply me) or i can do something to fix it by myself?[/QUOTE]IDK, there seems to be a patten, but only a few people have reported it so far although it is always cell 1. I think it will only effect the battery monitoring under load which may cause the DNA to go into weak battery earlier the otherwise and not the vape. You could check the ground strap connection, but the screw hole is covered with a white plug and removing it would probably void your warranty. I am waiting for one to be delivered and will have a closer look at the issue then. Link to comment Share on other sites More sharing options...
Spector NS5 RD Posted December 1, 2015 Report Share Posted December 1, 2015 i'm struggling to reconcile this as just normal 18650 inconsistency. i dunno here's another snap shot Link to comment Share on other sites More sharing options...
VapingBad Posted December 1, 2015 Report Share Posted December 1, 2015 Yea yours is really only on the preheat and not just one channel Chunky. Link to comment Share on other sites More sharing options...
dedone Posted December 2, 2015 Author Report Share Posted December 2, 2015 This is the official reply from Wismec about my problem:Dear friend, Thanks for your email and sorry for the delayed reply.As for the problem you mentioned, kindly suggest you contact Evolv for help since our chip is provided by them.Have a nice day. Best wishes! ShirleyMarketing DepartmentI've send the email not to the marketing, but to service@wismec.com (as write in their website fot techincal support)I 'm starting to upset! ok....and now!?!?!?!!? Link to comment Share on other sites More sharing options...
Cmanning90 Posted December 9, 2015 Report Share Posted December 9, 2015 I'm having the same issue. Like I'm not even sure where else to turn. I had a reuleaux for like 5 days running 3 brand new Samsung 25r's and it just quit. It won't turn on and if you hold the fire button it will start to come on and display the usual wismec logo and such... then immediately it flashes check battery. Cell 1 showed 0.01v while Cell 2 and 3 where just over 5v each (yup... 5) on escribe. I tried with 3 brand new batteries and same issue... even checked all the batteries in other mods and they're all good. So I took it back and the shop was awesome and they replaced it. Perfect. No issues for one whole week with the second unit then all of a sudden the same friggin thing happened. TWO fricken units?! Like come on... I'm so choked. I figured I had one faulty one and decided the second one was all I needed to bring into the bush for 3 weeks at work and here I am 5 days in with no vape. Link to comment Share on other sites More sharing options...
Cmanning90 Posted December 9, 2015 Report Share Posted December 9, 2015 Oh and heres the crock I got from wismec a week later Dear friend, sorry for the late reply. May I ask which country are you in? We suggest you to contact the seller for some help. Wismec will provide after-sales for dealers and our dealers have the obligation to provide warranty for end-users like you, as it is known to all that itâs more convenient for our customers. Have a nice day. Olivia Marketing Department Link to comment Share on other sites More sharing options...
RoofMonkey911 Posted December 9, 2015 Report Share Posted December 9, 2015 I've been wordering what the battery locations were for 1,2 & 3 in the Reuleaux. Thanks! VapingBad said:From the photos I think these are the cell numbers when looking from above. Link to comment Share on other sites More sharing options...
VapingBad Posted December 9, 2015 Report Share Posted December 9, 2015 I got one today and all the cells have about the same voltage drop, it may just be the ground strap screw is not tight enough in the ones with a weak cell 1. Link to comment Share on other sites More sharing options...
dedone Posted December 11, 2015 Author Report Share Posted December 11, 2015 VapingBad said:I got one today and all the cells have about the same voltage drop, it may just be the ground strap screw is not tight enough in the ones with a weak cell 1.Where is this screw? It's accesible without avoid the warranty? Link to comment Share on other sites More sharing options...
dedone Posted December 11, 2015 Author Report Share Posted December 11, 2015 VapingBad said:I got one today and all the cells have about the same voltage drop, it may just be the ground strap screw is not tight enough in the ones with a weak cell 1.Vaping.......YOU'RE THE MAN!!!!!!!! YOU SAVE ME!!!!!!!!!!All the problem in in the srew under the white sponge, i had removed the sponde and tight the screw, and now all is working perfect!!!!!!!THANKS THANKS THANKS!!!!!!!!!!! Link to comment Share on other sites More sharing options...
VapingBad Posted December 11, 2015 Report Share Posted December 11, 2015 dedone said:[QUOTE=VapingBad]I got one today and all the cells have about the same voltage drop, it may just be the ground strap screw is not tight enough in the ones with a weak cell 1.Vaping.......YOU'RE THE MAN!!!!!!!! YOU SAVE ME!!!!!!!!!!All the problem in in the srew under the white sponge, i had removed the sponde and tight the screw, and now all is working perfect!!!!!!!THANKS THANKS THANKS!!!!!!!!!!![/QUOTE] glad you got it sorted Link to comment Share on other sites More sharing options...
Cmanning90 Posted December 14, 2015 Report Share Posted December 14, 2015 Hopefully thall fix mine too... I'll let you guys know asap Link to comment Share on other sites More sharing options...
BillW50 Posted March 28, 2016 Report Share Posted March 28, 2016 VapingBad said:Because you have a high voltage sag from the batteries. 18650s will never perform as well as decent LiPosReally? I am into RC and my lipos are horrible for battery sag. Same ones that the DNA200 often uses. And the electric car manufacturers have lots of smart scientists, researchers, and engineers. And oddly enough they are using 18650s for their battery packs. So you better call them and set them straight. Link to comment Share on other sites More sharing options...
retird Posted March 28, 2016 Report Share Posted March 28, 2016 BillW50 said:Really? I am into RC and my lipos are horrible for battery sag. Same ones that the DNA200 often uses. And the electric car manufacturers have lots of smart scientists, researchers, and engineers. And oddly enough they are using 18650s for their battery packs. So you better call them and set them straight. They also use Li-Po's for their battery packs... just one example... http://www.ronlund.com/rcheli-prod/ELEC_BATL6/CS5200-6S-50C.html Link to comment Share on other sites More sharing options...
BillW50 Posted March 28, 2016 Report Share Posted March 28, 2016 Not here.What Goes Into A Tesla Model S Battery--And What It May Cost? Link to comment Share on other sites More sharing options...
VapingBad Posted March 28, 2016 Report Share Posted March 28, 2016 BillW50 said:Really? I am into RC and my lipos are horrible for battery sag. Same ones that the DNA200 often uses. And the electric car manufacturers have lots of smart scientists, researchers, and engineers. And oddly enough they are using 18650s for their battery packs. So you better call them and set them straight. Only 140 W as the coil I had handy for the battery analyser was 0.557 ohm and the power limit for that is about 145 W, I'm sure it would look even more dramatic if I used a higher power and newer LiPo let alone a 90C LiPo. Same charge level, same fire duration 5 seconds, same coil, though the LiPo has had a lot more charge cycles that the VTCs, the LiPo is only a 30C rating 900 mAh. Link to comment Share on other sites More sharing options...
dwcraig1 Posted March 28, 2016 Report Share Posted March 28, 2016 Here's a link were I compared a lipo with 18650's, both packs were at 12.6 volts at firing.https://forum.evolvapor.com/topic/67734-topic/?do=findComment&comment=909671 Link to comment Share on other sites More sharing options...
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