VTCs are IMR. Safer Chemistry batteries. When they have a thermal failure they'll vent smoke but they will not catch fire or explode.
Li-ions explode.
Li-ions explode.
batteries for ipv4 100 watt adv mod
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Not arguing with you, but IMR's are still Li-ion since the manganese is ionized. I'm curious as to what makes the manganese safer.
I feel an after school vape special coming.
I feel an after school vape special coming.
Lithium-manganese, IMR, cells have a higher thermal runaway temperature threshold than lithium-cobalt, ICR or LiPo, cells do. The also have a lower temperature of reaction and release less energy during thermal runaway than LiPo's. This can reduce the chance of the solvent igniting or the runaway spreading to nearby cells.
LiPo's don't explode unless the mod isn't vented, but then it's the mod blowing from the pressure, not the cell. Their thermal runaway is certainly more violent than other chemistries though, and burns hotter.
Well I did the math .05 at 1.89 volts = 71.44 watts at 37.8 amps on my calculator you must be thinking of .5 not .05
Well sir I have the data sheet that shows these batteries being hit at 100 amps I did not say there safe to run there but it's nice to know they'll take it small car battery runs at 650 amps forklift battery depend on the size of work with might be as high as a thousand amps now back 2 mods the ipv4 witch I own and use calls for a 40 amp battery fact there are sheets out there with data that's not true like this one it's way off in mater of fact the resion pioneer 4 u has all ready up dated the ipv3last to temperature control is for a wider range of ohms in j mode ipv4 is .1/.05 not what this attach spec sheet reads now is it wich changes every thing nowwell there are a few batteries that can run at over 100 Amps.... car batteries, forklift batteries, electric automotive
you might want to rethink that incorrect statement sirwell there are a few batteries that can run at over 100 Amps.... car batteries, forklift batteries, electric automotive
this is scary give somebody a Google acount and they're going to spread more false information I had to go to a battery store to get the actual facts on the Samsung battery r25 I was lucky he had just come back from the trade show I walked in I asked for 2 25 amp continuous draw Samsung batteries he said there is no such thing I immediately whipped out my Google proceeded to look up the specs as he reached under the counter and set the specs on the counter the real ones no sir too much false misleading information going on out there and it is dangerous
It doesn't matter what the resistance is when you're vaping in VW mode since the DC-DC regulator controls the mods output. Batteries do not change their voltage, the regulator takes battery output and changes the voltage to what is correct to keep the watts at set point for the resistance in the atty. What remains constant is power (watts) out from the batteries equals power out from the mod plus regulator inefficiency loss.
The IPV4 uses 2 batteries in series. Here is the Steam Engine battery drain calculator with Samsung 25R's preset. Leave it set for 'power regulation (VW)', enter 2 ohms for 'Atomizer resistance', enter 100 watts for 'Power (wattage) setting' and make the 'Battery voltage' 6 volts (2 batteries in series so the volts add up) which is about the lowest they will ever be and amp draw will be the highest. In the 'Battery drain' window you'll see that battery drain current will be 18.52A each. Change the resistance to 0.1 ohm and battery draw stays at 18.52A. Increase the battery voltage to 8.4V as it will be with fresh batteries and you'll see battery amp draw has gone down to 13.23A each. I'm leaving battery voltage drop out of the equation at 8.4V, but it doesn't affect the outcome as we should be calculating at lowest voltage anyway for battery safety. Lower the watts and you'll see battery amp draw decrease.
So, 20A batteries will stay within continuous amp draw ratings up to about 100 watts in pretty much any VW mod and 30A batteries up to about 150 watts with any resistance build you use.
This is of course not the way it works with mechanical mods or when setting volts in a regulated mod. Battery current draw with a mechanical is highest at 4.2V per battery so use 4.2V with a single battery mod for these calcs. In a VV mod use 3V for a single battery mod as that works the same as in VW. If you set this up in the calculator you'll see that the lower the resistance the higher the battery current draw becomes.
Hope this helps.
In your post #49 in this thread you show a pulse rating of 95A for 1/2 second. Is this what you're referring to above? If it is, I'll just repeat what I said before (slightly modified so Bunnykiller doesn't need to correct me
:There is no 18650 cell that is safe to vape at 100 amps under any circumstances.
I'm not aware of a Samsung R25, but I know the 25R and I suspect that is the one you're referring to. Please correct me if I got that wrong.
To find the real amp limit on that battery, you could also have read this thread. Susan posted it earlier along with other battery limits and you will find it here.
No it is a mistake on my part 25R got me on that one
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