dwcraig1

The best place for your answer is here: https://helpdesk.evolvapor.com/index.php?a=add&category=1

Rotating the cells of the pack when in a series serves no purpose like it would if they were in a parallel, if they work best in a particular order you might consider installing them that way every time.

https://redirect.viglink.com/?format=go&jsonp=vglnk_148359602427212&key=ccc2217bc2b75c4bdf5f7e57267f0464&libId=ixjyq4sw010009xy000DLqiyi2ag0&loc=https%3A%2F%2Fevolvapor.forumchitchat.com%2Fpost%2Fearly-firmware-7508618%3Fpid%3D1293056071&v=1&out=https%3A%2F%2Fdownloads.evolvapor.com%2FSetupES250.exe&ref=https%3A%2F%2Fevolvapor.forumchitchat.com%2F%3Fforum%3D454151&title=Early%20Firmware%20-%20Evolv%20DNA%20Forum&txt=https%3A%2F%2Fdownloads.evolvapor.com%2FSetupES250.exe Darn that's a lot of text, must be a better way...........but it does work.

If you feel like affixing a jumper wire from the output and ground for the 510 on the board and use atomizer analyzer in Escribe that will narrow down to whether it's a problem with the board or not. Kind of extreme perhaps but effective.

Well I think I missed part of your post, how about how well the body of the 510 grounds to the case....any oxidation?

check the 3 screws holding the board in the case to make sure they are not loose, that's the ground for the 510.

First 3 2500' in parallel, 2nd 3 2500's in series

It would pertain to all cell types. To be more clear perhaps, two (same) cells whether connected in a series or parallel would have the same watt hours when paired. https://milliamps-watts.appspot.com/

Tell us more please, what was it?

Example:

Escribe will show what the voltage of the cells are under load. It sounds as if the board is not getting good power. Might be the batteries, might be bad connection(ect.) of battery contacts to battery. Might be bad solder joint somewhere between batteries and board.

The curve only makes the battery gauge more accurate, it doesn't change battery performance

Have you tried logging off then back on?

Where you bought it if new, Lost Vape service center or a ticket with Evolv. 4.2 volts is full charge for most Li-on cells, there are some that are 4.35 volts.

See that cell #2 reading 5.05 volts, the board is the problem.

Bridge ground to B -, bridge 3 to B + to eliminate using wires. That leaves 1 & 2. Starting from left 3 (red),2,1, gnd.

Maybe uninstall and re-install Escribe, might try a different cable too.

LOL, comes out the same.

Well SP5 is fine but for the 75 it is the same firmware. So your good there.

Escribe/tools /apply service pack. Steer it to the latest date of DNA75. Start with Escribe 1.2 SP3

Did you re-flash the firmware by chance also? You might give that a try, can't hurt.

The curve can probably be found on this forum. I calculate 12.5% less than stated mah for 18650's ( on a 200 board) Keep in mind that only the "fuel gauge" is effected not battery performance with the csv

It depends on the speed that they are going South, a little is normal.

Agree. As cells age capacity drops, abused drops even more.

If it were mine I'd lower the watt hours by 15 - 20% and see how that goes, battery performance won't be affected.