sotiris.bos

My response:

Their answer:

I just opened a ticket with Evolv. Will report when I get an answer. I urge anyone else with the same problem to open a ticket as well.

Yes, of course! I was thinking of trying to contact some reviewers but didn't know how. Go ahead!

Yeah a ticket was what I intend to do. I just didn't have the time this week

No I just didn't have the time lately to contact them. The problem is on their boards so I don't see how it could be the mods' manufacturer fault. You might as well contact them and point them to these threads. I will too probably tomorrow, the more of us that complain about this, the better. I also thought somebody from evolv would read their forums but that does not seem to be a thing apparently...

No, it is a big problem apparently, lots of people have the same exact issue. Check out my other post where I explain what really is the problem:

Check my thread

My Vaporshark DNA 200 stopped charging and firing. I plugged it in EScribe and one cell was reading really low (sub 2volts) while the other two were fine. A couple of days later not using it, cell number 2 voltage was 0. Bought a new battery, now the pack voltage correctly reads 11.5volts, but cell voltages are 5.75, 0 and 5.75 respectively. Lots of people have been having problems with their mods not charging and they all think it is the battery. Both of my batteries read fine with a multimeter! Save your money and don't go out buying new batteries, the problem is the hideously unreliable onboard battery balancing charger (part number BQ76925 from Texas Instruments). Many thanks to this guy --> https://youtu.be/jHFHN7pHbVo The video is in Russian but the English subtitles might be a bit of help. My mod displays the first problem shown at 0:22. This part seems to have a very high failure rate. Looking through the forum, lots of people have been having the same problem as I. One guy sent his device for RMA, got it back repaired only to have the same fault after 3 days. Most of you are lucky to still be in warranty and live in the USA. I have to spend a fortune in shipping to get my VS to Vaporshark and back to Europe while I am also out of warranty. I was considering to buy a DNA 250 board to replace my broken one but the problem has not been fixed, thus I am not paying 80 dollars to have the new board fail again at some point. Evolv needs to address this problem, rather than replacing the boards under warranty, only to fail again in the future. I would like for this thread to become a sticky and not be buried since it answers most battery problem threads. I expect an answer from Evolv. I am deeply dissatisfied and this is not what I expected from a responsible company like Evolv. Luckily, I still have my DNA 40 to power me through.

I know the red wire is stripped but that should not be the problem

I was hoping I can diagnose the problem with some help from this forum. If the problem is a bad connection on a wire (which does not seem to be as I checked with a multi meter) I am handy enough to resolder said wire. If the problem is on the board, maybe I can get some local electronics guy to repair it. I just need help finding out why my DNA 200 does not recognize the second battery cell. (It is the second cell on both batteries) One more thing to note, it was charging when all of this started happening. That is why I though of the battery being the culprit. I personally think there is something wrong with the balance charger chip on the board. It looks like it has some salt gunk on its feet. I am going to try and clean it with isopropyl alcohol tomorrow, as I don't have any right now.

Well, that is not really an option since I live in Europe and shipping fees would be as much as a new DNA 250..

My Vaporshark has stopped working. I thought the battery died (one cell was reading sub 2.9 volts, I left it for a couple of days and it was reading 0) and went and replaced it today. Device monitor shows 11.5 volts on the package, cell 1 5.75, cell 2 0, cell 3 5.75. The battery is a 3S so the device monitor is reading 11.5 correctly but the individual cells do not display correctly. Screen lights up if I keep the button pressed, device shuts down if I let my finger off the power button. If I unplug the 4-pin connector, the device lights up with a single press of the fire button (no need to hold it down) and turns off after a couple of seconds on the normal volt, resistance, power etc display. The battery indicator always shows 0%. I have dropped the device in water but that was in Christmas, now is June. It had the same behaviour back then for a couple of hours until I got it dry (yes I had fired it up while still somewhat wet). The board seems to have some water damage but it was working fine up until now. Help!!