Discontinued The Persei Vaporizer for herbs and concentrates.
- Thread starter THC SCIENTIFIC
- Start date
tsc.v8
Active Member
"There's a limit to the total power for your house, but turning on another lamp doesn't dim the others." (because the lamp doesn't use all available power?) - note by tsc.v8.
Okay, so we're back to the question: does one cartridge alone really use all available battery power? If so, adding another cartridge is going to 1) "make the system fail" or 2) divide the power in some way between cartridges...?
TommydCat
Well-Known Member
The batteries deliver power at a voltage, that power regulated by the resistance of the cartridge to limit the current (rather than deliver at the full limit of the battery).
The dual head has the cartridges wired in parallel so that the voltage is the same and the current to each is again limited by the cartridges resistance. One or both, as long as the batteries can supply the total current, each cartridge should perform almost identically as they would separately. (There are other factors that negate this statement as 100% accurate, but in the real world it's "close enough".)
The "easiest" comparison chart is the one based on wattage on the wiki site, as it gives a more direct comparison (measured in energy expended rather than volts or current). What max wattage is the dual head rated for (I would prefer the RMS value), half of that would be the biggest cart (wattage-wise) to use.
I've done dual 3.0 ohm carts in a freshly-charged 7.2v config with two AW IMR 18350's and really don't remember if there was a voltage drop (indicating the circuit couldn't deliver the required current) or, actually remember much at all that weekend. I'm thinking there wasn't an issue
The dual head has the cartridges wired in parallel so that the voltage is the same and the current to each is again limited by the cartridges resistance. One or both, as long as the batteries can supply the total current, each cartridge should perform almost identically as they would separately. (There are other factors that negate this statement as 100% accurate, but in the real world it's "close enough".)
The "easiest" comparison chart is the one based on wattage on the wiki site, as it gives a more direct comparison (measured in energy expended rather than volts or current). What max wattage is the dual head rated for (I would prefer the RMS value), half of that would be the biggest cart (wattage-wise) to use.
I've done dual 3.0 ohm carts in a freshly-charged 7.2v config with two AW IMR 18350's and really don't remember if there was a voltage drop (indicating the circuit couldn't deliver the required current) or, actually remember much at all that weekend. I'm thinking there wasn't an issue
OF
Well-Known Member
It's in the loading instructions on the D9 site.
No, it still does not. Didn't I just answer that twice? Once directly, once indirectly? Each load takes as much power (measured in Watts, the product of the voltage and current) as it wants within the limits of the system. The system simply generates more power total (just like Boulder Dam does when the load goes up) and the rules of electricity continue to divide the current up according the the value of the loads (more current to lower Ohms loads).
It does divide the power, but the total goes up. Each cart gets the same power as it would normally get alone. Twice the total power, twice the total vapor, yet the cart is not overdirven.
Again, think about your house. Up the total load it simply 'buys' more power from the lines and divides it up so each load gets it's normal level. Same thing here, except the meter doesn't spin faster.....'cuz there's no meter.
OF
PhotoRider
Diagnosed with level 11 G.A.S.
The easy answer...
The 2 carts are in parallel not series. Both receive the same voltage and ohms law says there they both burn the same power. Parallel means the battery "+" is connected directly to both "+" terminals on the cart. Same goes for the "-" terminal.
If the 2 carts were put in series (daisy chained) then they would divide the power between them aka each get 1/2 the voltage. This is not was the dual base does...
What an issue could be if the power source can't handle 2x the current draw then it drops the voltage... This isn't an issue however with these mechanical bases such as the Persei since the batteries and connection can deliver the current up to I think 5A.
OK, on the battery side it works the opposite way since its a power source, not a load. If you put the batteries in series (again daisy chained) the voltage doubles and the current stays the same. This is what the Persei does when you put in 2 3.7V 18350 batteries. You get 3.7V + 3.7V = 7.4V.
Ok if you put the batteries in parallel the voltage stays the same, but the current capability doubles.
However since P = V * I the power is the same on each setup: 2V * I (series) = V * 2I (parallel).
Physics...
The 2 carts are in parallel not series. Both receive the same voltage and ohms law says there they both burn the same power. Parallel means the battery "+" is connected directly to both "+" terminals on the cart. Same goes for the "-" terminal.
If the 2 carts were put in series (daisy chained) then they would divide the power between them aka each get 1/2 the voltage. This is not was the dual base does...
What an issue could be if the power source can't handle 2x the current draw then it drops the voltage... This isn't an issue however with these mechanical bases such as the Persei since the batteries and connection can deliver the current up to I think 5A.
OK, on the battery side it works the opposite way since its a power source, not a load. If you put the batteries in series (again daisy chained) the voltage doubles and the current stays the same. This is what the Persei does when you put in 2 3.7V 18350 batteries. You get 3.7V + 3.7V = 7.4V.
Ok if you put the batteries in parallel the voltage stays the same, but the current capability doubles.
However since P = V * I the power is the same on each setup: 2V * I (series) = V * 2I (parallel).
Physics...
OF
Well-Known Member
I can confirm a 5.0 at 6V is really pleasant
Makes sense. It's about half way between 2.4 and 1.5 Ohm carts at 3.7 Volts power wise.
OF
TommydCat
Well-Known Member
This has been my choice for a short while as well, but the CR-123As are definitely another world from the other Omicron and Persei batteries. Needs a special charger (that is a bit wonky to get the batteries in correctly), rattles a bit in the tubes (to no ill-effect other than fit/finish) and isn't part of the standard Persei arsenal (though people may be led to think it comes with the base purchase - I think D9V could be a bit more clear on that).
This does definitely give us a lower gear in the Persei transmission, and it's a mighty useful one!
exit - you're headed down a less-travelled road. This is a good thing in my experience!
Edit: *grumble*Iris*grumble*would*grumble*be*grumble*nice!*grumble*
PhotoRider
Diagnosed with level 11 G.A.S.
This has been my choice for a short while as well, but the CR-123As are definitely another world from the other Omicron and Persei batteries. Needs a special charger (that is a bit wonky to get the batteries in correctly), rattles a bit in the tubes (to no ill-effect other than fit/finish) and isn't part of the standard Persei arsenal (though people may be led to think it comes with the base purchase - I think D9V could be a bit more clear on that).
This does definitely give us a lower gear in the Persei transmission, and it's a mighty useful one!
exit - you're headed down a less-travelled road. This is a good thing in my experience!
Edit: *grumble*Iris*grumble*would*grumble*be*grumble*nice!*grumble*
There are chargers that do both, just not the stock charger. They are smaller in diameter so they rattle, wrap them in foam and its all good...
I also use the 5 ohm at 6V a lot. Its a half step between 2.4/3.7v and 5.0/7.4v and helps the learning curve.
ok guys nibbler XL up, and the coupon code is nibbler for $25 bucks off, only 18 are up for grabs now.
OF
Well-Known Member
ataxian
PALE BLUE DOT
PhotoRider
Diagnosed with level 11 G.A.S.
?
.I put the "nibbler" coupon code in andits states:
The coupon code you entered couldn't be applied to any items in your order.
Nevermind, helps to put the right nibbler in the cart stupid me
.I put the "nibbler" coupon code in andits states:
The coupon code you entered couldn't be applied to any items in your order.
Nevermind, helps to put the right nibbler in the cart stupid me
OF
Well-Known Member
Yeah, PM me if you want the new price......
"Get 'em quick before they're all gone".
A fast keyboard and stolen credit card number, any boy can corner the market with this here internet.....
Hunt Brothers? Eat your hearts out!
Agreed. Not to quibble, but you meant RCR123As, right? 'Plain Vanilla' CR1123s are a whole different animal, not rechargable, but the same size.
OF
PhotoRider
Diagnosed with level 11 G.A.S.
Ok it appears my wax might be thicker than I thought. I had to hold the flame alongside the cartridge fairly low to get the wax to melt onto the contact point. However I see the appeal now of the 2.4 cartridges, very tough to over burn anything off.
Thank you forum members for helping me out.
Thank you forum members for helping me out.
ru_frothi
Portable Vaporist
must be a member of that few percent of double barrel users ans my double head did need repair. One of the sockets got looose. Im the exact opposite I never used the single head even if I was only running one cart.
In other news my Herc1 from dub has bit the dust. Hopefully the SR-71 will be ready soon. back to use myy revolution in the mean time. too bad, I preferred the herc to the revo.
tharealmclovin
Well-Known Member
Hopefully there will be another run once we get our hercs
I am sorry to hear. We still have your original Herc and would send one out to you once we get the new one in. The ETA is around 2-3 weeks still machining the important parts and then engraving and then assembly.
We have to see what the quantity is before we keep them in stock.
PhotoRider
Diagnosed with level 11 G.A.S.
I will soon, ordered 8 of them to test in a setup.
ataxian
PALE BLUE DOT
I love the double barrel action.
Don't know what you should or should not do!
However yes I love the 2.4 cart in a double barrel set up with a 3.7.
I like 2 x 5.0 carts with 2 x 18350's as well.
So many different combinations!
