ttatlanta
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Posts posted by ttatlanta
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Yes, I think we've got this sorted out, thanks to admins. Please don't take me being caustic personally, it was directed towards Evolv's UI decisions regarding the "mod" tab⦠which I still find confusing, despite being quite a nerd myself.
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retird said:
The post you mention references the DNA75. The DNA75 and DNA60 have a choice to select "18650 Li-ion". Both devices are single battery configured.
[â¦]
As far as I recall there has never been an EScribe option of "18650 Li-Ion" available for the DNA200 or 250 board.
You stated the obvious, then basically rephrased my question⦠that doesn't count as an answer. Yes, I think we've established by now that 18650 LiIon have disappeared from the menu options with DNA200&250, but why?! Why single 18650 had a dedicated option, yet 2 or more of them are treated as LiPo? Then again, if you insist that LiIon and LiPo should be treated the same, why not call the menu option "LiPo/LiIon"? Doesn't make sense.giz_60 said:The following is copied & posted from the following post..https://www.reddit.com/r/Vaping/comments/3j1i6e/lipo_vs_liion_cell_18650/
A Reddit post with 3 upvotes is a very scientific source of information indeed. </sarc>
LiPo, LiIon and LiFePO4 have one thing in common: they all have a lithium anode, just like disposable lithium batteries do. Moreover, as you correctly stated above, the LiPo is a subclass of LiIon.
Here's Wikipedia's take on the difference:Lithium polymer cells have technologically evolved from lithium-ion and lithium-metal batteries. The primary difference is that instead of using a lithium-salt electrolyte (such as LiPF6) held in an organic solvent (such as EC/DMC/DEC), the battery uses a solid polymer electrolyte (SPE) such as poly(ethylene oxide) (PEO), poly(acrylonitrile) (PAN), poly(methyl methacrylate) (PMMA) or poly(vinylidene fluoride) (PVdF).
From the vaper's perspective, we should be comparing LiPo packs to 18650 LiIons. Physically (other than the form factor), LiPo packs don't have a PTC and CID protection, as they are not supposed to be [easily] removable from the device (unless you're an RC enthusiast, of course)). They rely on expertise of the mod designer to provide necessary fuses and sensors.
Now, back to the point that you've missed again. LiPo and LiIon are different chemistries, and in a perfect world they require different charging techniques (cell balancing is not the question here, please stay focused). Any scientific or hobby charger (here's an example) will have separate modes for LiPo and LiIon, and if you look at the charge graphs, they are indeed different.
Can you charge LiIon as a LiPo? Sure. But same applies to LiFePO4, so why bother with a separate menu item then? Just give us an option for manually entering a cutoff voltage while charging (3.6V with LiFe as opposed to 4.2V for LiPo/LiIon) and call it a day.
TL;DR: Even if Evolv decided to charge LiIon as a LiPo (makes sense, considering that they are somewhat compatible in this regard), the UI choice is just plain wrong and confusing. Adding a 18650 option to the pulldown menu would've taken 2 minutes at most â just copy&paste from the LiPo options if you insist.
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giz_60 said:
Lithium Polymer setting for the Li-ion 18650 cells... "Lithium-polymer batteriesâ are actually âLithium-ion polymerâ batteries
Semantically you are correct, but⦠While both are lithium based, these are very different batteries in the real world. AFAIK there's no LiPo on the market in 18650 form factor. Most importantly in this case, LiPo and LiIon have a different charging dynamics.
Edit: maybe I've been mislead by this post, as it mentions "18650 LiIon" setting, but I'm reading the official Escribe manual and there's no mention of this option. -
Just received my Therion 166 today (and enjoying the heck out of it!)
Connected to Escribe, flipped through the tabs and found out that the default chemistry is LiPo. Known issue, so let's select the 18650 from the pulldown menu. Wait, what?!â¦
No LiIon option in Escribe
in Report a Bug
Posted
Well, DNA is definitely the leader in all of the above. By the way, RT monitoring (which many consider to be a gimmick) just helped me tune a Kayfun in no time at all. Great feature!
I'm just not a big fan of the Escribe's UI. It's⦠archaic, almost as if it was designed for a CNC machine or some military appliance.
There's an easy way for Evolv to assure their eternal domination of the high end market. Make the next DNA chip with a built-in Bluetooth (we already have battery chargers with BT, so why not?) and⦠make the API open source, so any developer could not just use it, but build it on any platform. Just imagine an Escribe-like app on your smartphone, or the real time monitoring on a smartwatch. Or a BT-enabled charger telling your mod that the next batch of batteries is ready to be loadedâ¦
Thanks!