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DNA200 - Low battery
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Michael Offline
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DNA200 - Low battery
Usually my Panzer DNA200 only pops up the "Low Battery" warning when it's around 40-50%. Today, I noticed it said "Low Battery" at 75%. I figured maybe it was just because I had turned the power up and it was drawing more amps so maybe it needed to be closer to full power. So I charged it, and now it's at 100% charge... and still says "Low Battery" every time I take a hit. 

Anyone got any ideas what's going on here? Have I just killed the battery through overuse? Or is this just a glitch that will go away eventually? 
15-10-2016 10:26 PM
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gentlydoingit* Offline
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Post: #2
RE: DNA200 - Low battery
Mike, I've got bad news.. my local b&m have had several back with the same complaint. Seems the last cell in the 'series' always goes tits up. They're actually not selling the rest of the stock because of it.
I feel a little guilty as it was me who suggested it to you first, sorry dude, in my defence that was long before the returns came in.

Don't forget to apply for the freecycle section!
http://www.thevapingforum.com/Forum-FreeCycle--191
15-10-2016 11:03 PM
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Post: #3
RE: DNA200 - Low battery
Sounds to me like a computer code issue and not a hardware issue...have you tried a different set of batteries? I've been pondering getting my hands on some O/S s/w and do some deep code snooping.... Smile
15-10-2016 11:41 PM
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gentlydoingit* Offline
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Post: #4
RE: DNA200 - Low battery
That went clean over my head fb but now you mentioned it.. I believe the dna chip let's you regulate the power from the batteries, it's possible it's been set too high damaging the cell. 
One of the batteries was tested on a balance charger from one of the returned mods, one cell was obviously f**ked.

Don't forget to apply for the freecycle section!
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16-10-2016 01:53 AM
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Fatboy (10-16-2016)
Michael Offline
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RE: DNA200 - Low battery
I believe there's a cell diagnostic option in eScribe iirc. I'll try hooking it up to see if there's anything I can do there. Fatboy, it's a built-in LiPo so it's not like I can just try another set of 18650s. I might be able to find a replacement 1s3p (edit: 3S1P) LiPo if needed. 
16-10-2016 02:13 AM
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RE: DNA200 - Low battery
(16-10-2016 02:13 AM)Michael Wrote:  I believe there's a cell diagnostic option in eScribe iirc. I'll try hooking it up to see if there's anything I can do there. Fatboy, it's a built-in LiPo so it's not like I can just try another set of 18650s. I might be able to find a replacement 1s3p LiPo if needed. 

Do you have the data packet? A copy of the downloaded s/w?
16-10-2016 02:15 AM
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Michael Offline
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RE: DNA200 - Low battery
Not sure where I'd even find that tbh. Looking through eScribe, there's an option to run battery diagnostics but you need to attach a resistor instead of an atty since it fires at 40W constantly until the battery is drained. Soooo yeah I don't have the tools to do that at the moment. 
16-10-2016 02:34 AM
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Michael Offline
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RE: DNA200 - Low battery
I just checked the "Device Monitor" and it's showing two cells as 3.92V, while the third cell is 3.59V which seems quite a big difference. I wonder why it did that? Do other DNA200 mods have this problem, or is it just the Panzer? Maybe if I can find a decent LiPo that's the same size as the one in the mod, I could replace it. 
16-10-2016 03:00 AM
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Post: #9
RE: DNA200 - Low battery
The best bet is to find one of the right size and rating. Evolv do actually have recommendations on their website.

But if it'll do 55A continuous, you'll be fine.

TVF tested battery info to be found here

[Image: 24291313393_16615b20b2_m.jpg]
16-10-2016 07:23 AM
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Michael Offline
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RE: DNA200 - Low battery
Here's what the Device Monitor looks like. Those drops are where I fired the mod for a couple of seconds at ~5s intervals. As you can see, cell 2 is showing basically full charge when it's not firing, but when I fire the mod it drops drastically, to around 3.7V or so. 

[Image: Screenshot%202016-10-16%2018.21.40_zpsmafrzqh3.png]
16-10-2016 11:31 PM
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