Battery % issue

[Kratos]

The last days my Triade DNA 200 has been going crazy on the battery %.

It constantly changes and does not even charge correctly, it stops when it thinks it is at 100% but it's not even 50% (my OPUS broke down so I have been charging it from the usb port for the last month or so, never noticed any issues with the voltage of my batteries, checked almost every day)

I have 3 lg hg2's in it who are supposedly new (2 months old) and the right .cvc for them
Tried different .cvc's from other sites, the problem keeps coming up

Reseted the whole device, problem keeps coming up


Any ideas? Has this happened to anyone else before?

[Spector NS5 RD]

Kratos said:

The last days my Triade DNA 200 has been going crazy on the battery %.

It constantly changes and does not even charge correctly, it stops when it thinks it is at 100% but it's not even 50% (my OPUS broke down so I have been charging it from the usb port for the last month or so, never noticed any issues with the voltage of my batteries, checked almost every day)

I have 3 lg hg2's in it who are supposedly new (2 months old) and the right .cvc for them
Tried different .cvc's from other sites, the problem keeps coming up

Reseted the whole device, problem keeps coming up


Any ideas? Has this happened to anyone else before?

what are your battery settings in EScribe? post a screenshot of them. 3 lg hg2's would be 33.3 watt hours (closer to 28-30 watt hours in reality). obviously, make sure you have the fields set to "lithium polymer" for battery type. "3 cell" (because it's 3S). for your "cell soft cutoff" i would input a cutoff of 3 volts. i would also set the charging mode to "maximize puffs", this option charges your batts to 4.2v.

here's my curve for a set of 3 LG HG2's >>>>>>  LG HG2 28.39 WH.csv.txt (remove the "txt" part to use with EScribe.)

[dwcraig1]

CSV files will upload to here.

LG_HG2_28.39_WH.csv

[jurdanas]

Maybe better:
 for your "cell soft cutoff" i would input a cutoff of 2.75 volts

[dwcraig1]

Perhaps I'm mistaken or it changed by FW update but the cell hardware cutoff for the 200 board is 28.5 volts.

[Kratos]

The settings were as you said they should be, cvc was the same I've been using. But for some reason the watt hours were set to 9... I had it set to 33.3 by a friend when I got the device, have no idea how it changed.

Thanks for this, if this isn't the problem I will post my settings

[jurdanas]

dwcraig1 said:

Perhaps I'm mistaken or it changed by FW update but the cell hardware cutoff for the 200 board is 28.5 volts.

 I like 28.5 volts 
friendly

[Spector NS5 RD]

for strictly testing limits, oddly, EScribe will let me input and "appear" to upload 2 volts as a "cell soft cutoff" setting for a DNA 200, i tried to input 1 volt and upload it but EScribe changed it 2. i know for a fact the board cannot operate at 2 volts, more likely closer to the dna 75 (Hrd Ctff 2.5v). with the 2 volt CSC uploaded to the device, when i press download settings immediately after the upload, the CSC field does not change to a different value, it stays at 2 v.

for lipo's i use 3 volts as a CSC and for 18650's i use 2.65 and 2.8 volts on the DNA 75 and DNA 133/200/250, respectively.

[Modbustersecig]

 
i just built this DNA250 num 3 cell i am wondering if i should replace the lipo  looks like a week cell ?

[dwcraig1]

Not much difference, give it some time charging/using, it should balance.
Then see how it does under load.
After looking at it more ...maybe, see if it continues after some cycles.