Not even for a brand new, freshly polished Treebox?
Meh, everyone knows imma grab my ankles for a TreeBox...
Aaah Style, I like your style. 1 Canadian and 2 young male Aussies inbound. I hear their Grampa was quite famous. Last name Gibson.
Some Rugby/footie? coach, Jack Gibson
Say, I know the DNA200 you could change the battery type to IFR LiFePo4 with EScribe. I don't have any DNA250, is the option still there? And I just checked my two 75C and two 250C and I see the battery type is greyed out and stuck on 18650 Lithium Ion. Are they locked there?
Left brain: Maybe you can't change it if it has batteries in it perhaps.
Right brain: Just try it Bill!
Left brain: Ok, I will!
Left brain: Didn't work.
Right brain: Don't look at me, I didn't say anything.
Left brain: Maybe you can't change it if it has batteries in it perhaps.
Right brain: Just try it Bill!
Left brain: Ok, I will!
Left brain: Didn't work.
Right brain: Don't look at me, I didn't say anything.
Then there's me, I have no C's. If you change from 8.4 volts to 12.x, 14.x does it become adjustable then? (on the 250C)
You can change the number of cells on the 250C, but that still doesn't allow me to change the battery type.
Say, I know the DNA200 you could change the battery type to IFR LiFePo4 with EScribe. I don't have any DNA250, is the option still there? And I just checked my two 75C and two 250C and I see the battery type is greyed out and stuck on 18650 Lithium Ion. Are they locked there?
Left brain: Maybe you can't change it if it has batteries in it perhaps.
Right brain: Just try it Bill!
Left brain: Ok, I will!
Left brain: Didn't work.
Right brain: Don't look at me, I didn't say anything.
Hey Bill I'm using a Mac, So I have E-Scribe for Mac.
For my 75c I have a choice of lithium ion 18650 0r lithium Polymer you can find & load a custom CSV file for your battery.
The 250c has all four choices lithium ion lithium polymer liFePo4 & power supply
I can also choose removable or not # of cells & watt hour calculator
But in this latest version the actual Wh has been removed for the Color boards. Only the ability to create the curves.
These new C's have the default CSC set at 2.75V, and I remember the big fight with Jaquith saying to use 2.5V. But here's the oddity in the whole situation. James once said to use 2.9V for CSC so the BMIC could squeeze out the last remaining juice. So this new 2.75V looked a bit odd.
James words below. With these new boards his thoughts might have changed.
CSC Cell soft cutoff - Wismec Reuleaux Mod Resistance
With soft cutoff at 2.8V, when the battery gets very low/weak, instead of the DNA dialing down the power so you can extract the last 10% or so of battery life, it is just going to say Check Battery. And you will have to dial down the power manually.
It isn't what I'd do. But, to each their own. I'd make it at least 2.9V to get the battery-extending of the soft cutoff.
People often misunderstand the nature of soft cutoff. If you look at a battery discharge curve, with lines for 1C, 5C, 10C, etc., it isn't saying Check Battery at that voltage. Instead, you'll notice that the lines tend to crater in voltage at a particular mAh. What soft cutoff does is, when the battery is about to fall off at that voltage, it instead goes *horizontally* on that curve, to the right, toward lower C value curves that end at a higher mAh. The battery can't give full power at that point much longer, and if you try it's about empty, so soft cutoff kicks in and gives you a power level it can keep going on. For total battery life soft cutoff is your friend.
Maybe we should have given it a better name...
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I have all 4 options available for the multi cell devices and just lithium ion or polymer for the single cell ones.You can change the number of cells on the 250C, but that still doesn't allow me to change the battery type.
What version of eScribe are you using?
Version 2.0 SP15.1 here.
I thought I was up to date? Version 2.0 SP15.1 (Mac)
Funny I get the watt hour calculator with my 4S, & don't with my 3S?
But in this latest version the actual Wh has been removed for the Color boards. Only the ability to create the curves.These new C's have the default CSC set at 2.75V, and I remember the big fight with Jaquith saying to use 2.5V. But here's the oddity in the whole situation. James once said to use 2.9V for CSC so the BMIC could squeeze out the last remaining juice. So this new 2.75V looked a bit odd.
James words below. With these new boards his thoughts might have changed.
CSC Cell soft cutoff - Wismec Reuleaux Mod Resistance
With soft cutoff at 2.8V, when the battery gets very low/weak, instead of the DNA dialing down the power so you can extract the last 10% or so of battery life, it is just going to say Check Battery. And you will have to dial down the power manually.
It isn't what I'd do. But, to each their own. I'd make it at least 2.9V to get the battery-extending of the soft cutoff.
People often misunderstand the nature of soft cutoff. If you look at a battery discharge curve, with lines for 1C, 5C, 10C, etc., it isn't saying Check Battery at that voltage. Instead, you'll notice that the lines tend to crater in voltage at a particular mAh. What soft cutoff does is, when the battery is about to fall off at that voltage, it instead goes *horizontally* on that curve, to the right, toward lower C value curves that end at a higher mAh. The battery can't give full power at that point much longer, and if you try it's about empty, so soft cutoff kicks in and gives you a power level it can keep going on. For total battery life soft cutoff is your friend.
Yeah, maybe a better name for soft cutoff would be "tootle puffer power extender" and hard cutoff maybe "lipo fire risk setting".
As an avid lipo user for years in rc airplanes I can honestly say that lipos cannot tolerate the dark side of 3.1 without incurring extensive damage within the cell. The general rule for lipos is to never discharge them below 3.4 per cell (that leaves 20% capacity remaining) and will greatly extend the lifespan of the cell. Repeatedly dragging the cell down to even 3.1v will cause it's early demise for sure and why anyone would think it's ok to drag one down to 2.7 per cell is beyond me.
ETA: Tootle puffers using lower current draw from the batt could certainly drag a batt to lower than 3.1 per cell without noticing a reduction in vaping performance whereas higher power vapers like myself would. Therein lies the danger for tootlers ie pushing the lipos below the threshold of safety. I will say however that fire risks during the charging cycle for our mods (1 amp) is some order of magnitude less than the potential for fire while charging on our programmable rc chargers (4 amps and higher). Still, I want my mod lipos to last as long as possible and be safe so I set my soft cutoff to 3.45v and hard cutoff to ? (Senior moment, I'll have to check). Should be easy, I sold all but one lipo dna.
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Checked my hard cutoff, it's set to 3.2v on my Lavabox dna200. Thing is, at the power levels I run on this mod (90w or more) I notice a performance drop and recharge before it ever reaches cutoff voltage. With the settings as they are I can vape about the same mils of juice as with a Sony vtc 5a 18650 in my dna75 (about 6 ml). Not great, but safe.
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