[CLOSED]

[ST Dog]

I run all day with $80 In batts. Then use them again and again.

Granted, I got out before Lithium took over.
Still, I like glow engines for the sound. And the little 4 strokes running nitro-methane were cool, but too $$$ at the time.

You're way over budget for a charger for these. $30 total tops for your regular consumer.

$30 with proper balancing for multi-cell series packs? Paint me surprised.
Just at a glance I see Tower has the Duratrax Li-24 for $25.
TowerHobbies.com | Duratrax Li-24 2S-4S AC Balance Charger Star

*****************
Dang it all, now in have to go dig the car out of the shed, charge/check the batteries, buy some fuel and glow plugs...

 

[beckdg]

Bwahahaha... got bit by the bug again, eh?

Yeah, I have the t-maxx for all that. Things a money pit and a tank though. Kids would do serious property damage.

Yeah lipo and charger tech has made serious leaps and bounds in the last few years.

Tapatyped

 

[Nautilusfan]

I certainly appreciate all the input on the lipo batteries and chargers! I guess my real question is how much space will be saved by using them as opposed to doing dual 18650's? Or even dual 26650's

 

[Hemptation]

Well. Space. And over all performance for regulation is the ongoing discussion I believe. Because of the current amp limit on regulated chips. When dealing with 18650's. So we are talking about longevity, consistency. And over all power for
True regulation I believe my brother


But honestly I am way lost in the tech specs I understand basic principals and battery safety. And I have seen and used both types of power supplies. But these guys are spitting true knowledge. Lol.

 

[Nautilusfan]

Yea I guess that's the part I'm not understanding. The sx350 chip will output 9.5 volts and 40 amps with 96% efficiency if I'm not mistaken. This is with dual batteries either 18650 or 26650. This will give you 120 watts. Correct?

 

[Tbev]

Basically I want a lipo that will supply the min required input to run the chip at what would be the equivalent of dual batteries 18 or 26. Because the chip only powers half way with one battery. I think we'll actually be able to save some space but for example, my 18650 mod could be smaller but it's made so a 22mm atomizer does not hang over the edge. I'm pretty sure the size differance is going to be negligible, I was hoping to put an 18650 and a chip in the 26650 size mod. For the record the 26650/15ml mod is only 0.2in wider and thicker than the 18650.

 

[Tbev]

Lancia Cap/Tips if anyone wants pm me.

 

[Nautilusfan]

Basically I want a lipo that will supply the min required input to run the chip at what would be the equivalent of dual batteries 18 or 26. Because the chip only powers half way with one battery. I think we'll actually be able to save some space but for example, my 18650 mod could be smaller but it's made so a 22mm atomizer does not hang over the edge. I'm pretty sure the size differance is going to be negligible, I was hoping to put an 18650 and a chip in the 26650 size mod. For the record the 26650/15ml mod is only 0.2in wider and thicker than the 18650.

So how much bigger than the 26650 mod would it have to be with dual 18650's, a 10ml bottle and a sx350 chip??

 

[supertrunker]

Mail in transit. HRH posted to the lookout tower for 3 days.

< not interested in high powered regulated mods. The chips are fragile and 'the same vape until the battery dies' is overrated.

T

 

[beckdg]

Real benefit to lipo is it would be nigh impossible to stress the battery.

Low internal resistance and fantastic discharge characteristics may mean you get to use more of the batteries capacity between charges with a cleaner output as well.

Think of an mvp 2 with 2600mah lasting some people 2 days @ around 8 watts while a 2000 mah AW barely lasts them through the day.

Then figure you'll have 2 of those cells in the mod.

Tapatyped

 

[supertrunker]

What about physical abuse like dropping the mod?

I'm not Devil's advocate here (he's a pal of mine), but back in the day, i recall the first 'Groove' mod that would catch fire from just a poke on the LIPO or a drop on carpet. I like the idea of the battery capacity, but the expensive chargers and need to charge them in a bag, is frankly too much hassle compared to IMR's.

I'm deliberately ignoring all the chipsets, because i'm not interested

T

 

[beckdg]

If you're in a position to need a sac to charge in you besta be doing that stuff outside.

Lithium fumes are sweet but DAMN... that's some potent and toxic stuff that will escape that bag.

My big .... packs have been run 40mph to 50mph dead Into solid objects repeatedly over the years with a lot less protection than anything Tom has produced thus far. Not one vented yet. They're surprisingly resilient because they give.

ETA: have you seen the mvp torture tests? Now imagine that battery's in a tmod instead.

Tapatyped

 

[supertrunker]

No - but battery safety here seems to be 'charge them only when you are there, charge them in a baggie', you know the routine.

From my own point of view, there are cylindrical LIPO batteries that would seem to fit the bill perfectly for mechs, but they are not in widespread use and i wonder why?

T

 

[Nautilusfan]

Real benefit to lipo is it would be nigh impossible to stress the battery.

Low internal resistance and fantastic discharge characteristics may mean you get to use more of the batteries capacity between charges with a cleaner output as well.

Think of an mvp 2 with 2600mah lasting some people 2 days @ around 8 watts while a 2000 mah AW barely lasts them through the day.

Then figure you'll have 2 of those cells in the mod.

Tapatyped

Thank you! I definitely see what you're saying

 

[beckdg]

No - but battery safety here seems to be 'charge them only when you are there, charge them in a baggie', you know the routine.

From my own point of view, there are cylindrical LIPO batteries that would seem to fit the bill perfectly for mechs, but they are not in widespread use and i wonder why?

T

I haven't a reason yet to have much confidence in cylindrical lipos either. Though no reason to doubt them yet.

There is the istick family to consider as I believe they use them.

Thank you! I definitely see what you're saying

I knew you would. An astute group we have here. I suspect few, if any won't understand.

Once written, it's your choice what to do with it.

Though I encourage some fact checking and cross referencing.

Tapatyped

 

[Hemptation]

Yea that's what I was saying. The mvp reference. Every mod I have seen that runs on a lipo pack gets way more out of its mah compared to high drain batteries. And I believe that 2-2600 mah lipo packs will outrun 4- lg he2 or he4's. Performance wise, longevity and endurance over all. Cause I run around .5 in my Reos. And I kill he4's and he2's daily. And they only last 6 months before needing replacing. Lipo packs outlive and outperform by double in every mod I have seen. Seems like a no brainer. Even if we have 1 pack with a back up. They fit a 4400 mah pack in the istick 50. And that thing is small

 

[Tbev]

I believe a pack with say twice the specs of a 26650 should take up less room. As I think of it right now the chip would be submerged in epoxy and the battery well protected from a drop a shotgun or anything else, I'm pretty sure most of those packs are even waterproof. I go thru 5 minimum vtc5's in a day and if I could get mod to run all day on a pack and just rotate two packs I would be happy, that's what I'm shooting for. That way we won't need the high end chargers either, slow charge them, prolly nicer on the cell as well.

 

[supertrunker]

Charging with a USB is pants! Takes too long especially for batteries that can charge a lot faster. I'd have to get a new charger. A $160 charger? Ouch.

Which would be fine, if the batteries were easy to swap in and out - start soldering things and the whole thing becomes a nightmare.

i run 4 18650s a day probably, but i run coils at 0.3Ω and under. Mine are VTC4's.

I'm happy to replace the batteries after 6 months. It's the price you pay for greedy sub-ohming daily.

T

 

[Tbev]

I haven't replaced my vacs in a year and recently I've been noticing that there some duds in my rotation and some are just dying after a couple hits then I throw them back on the charger and they say 4.1 or whatever; pretty much full but they are giving it up. This has really been the number one reason I've been thinking about lipos, I'd way water totally convert to lipos than convert from vacs to he2's or 25r's. I'm not a fan of downgrading, especially paying to downgrade. This and the fact that I can't but a 26650 that is any better than a 18650, bogus. I know I know but you know that I mean.. I have been holding out for some new batteries to pop up but it seems that it's not going to hapoen.

As far as the lipos go in a mod, I would almost positively make them replaceable, definitely not permanent. They will have a plug that connects to the mod, even if I run that streight to the 510 and use no chip. I may do that sooner rather than later and just see what happens..

Anyone who is educated on the subject please chime in. Anyone finds a battery that has suitable specs and 30a equivalent that will fit in the place of a 18650 send me a link and I'll buy it and wire it up in my personal mod and give it a run.

 

[supertrunker]

I've had some cloud hounds tell me there's 40A 26650s, but i never saw verified tests that beat a 30A 18650 - and i do mean continuous here , not some Efest flight of fancy, and that is why i stick to my 18650s.

I'd love to be educated that there are such things (but they kept it secret maybe? lol) and that is why i went for the Tbev mod i did.

T