Battery Voltages -- Surprise!

[player57]

Appreciate the tech info Scottbee.

Well I was lucky(?) enough to have one of my eGOs fail this evening so I took it apart. Battery voltage was measured at 2V so it's hosed. Maybe after taking a closer look at the circuit I'll replace the bad FET with a hexfet like a IRLML4602 or whatever I have on hand that'll work. After that I'll try the 3.7V mod from your post.

Thanks again.

 

[Scottbee]

Appreciate the tech info Scottbee.

Well I was lucky(?) enough to have one of my eGOs fail this evening so I took it apart. Battery voltage was measured at 2V so it's hosed. Maybe after taking a closer look at the circuit I'll replace the bad FET with a hexfet like a IRLML4602 or whatever I have on hand that'll work. After that I'll try the 3.7V mod from your post.

Thanks again.

Boy does that look familiar!

P.S. If memory serves me correctly, the Si2333DS is basically a drop-in replacement for that FET, assuming the traces survived.

 

[player57]

Scottbee, your memory serves you well. The Si2333DS would be a great replacement but I'll just try what I have on hand (barely acceptable but may work). I may parallel a few nanoSMDF polyfuses together and put them inline to prevent a repeat of the catastrophic failure but I feel like any attempt to prevent the short circuit 'problem' is like painting flames on an Edsel.

Question, have you noticed if most of the true 3.7v setups have protected batteries?

 

[Scottbee]

Question, have you noticed if most of the true 3.7v setups have protected batteries?

To be honest with you.. I am still in search of "true" 3.7VDC devices, aside from the Kangers and mods.

 

[Whistle_Pig]

Well I was lucky(?) enough to have one of my eGOs fail this evening so I took it apart.

Are there instructions somewhere for how to do that? I did search a bit recently -- of course, sometimes I miss things right in front me.

 

[player57]

I personally have done only one extraction so Scottbee may have a much better method.
Initially I just tried pulling the two sections (atty attached to battery) apart by hand using rubber gloves for a better grip. No dice - even wiggling a bit.

Eventually I used my mini-mill, atty tight in the drill chuck and the battery section loosely held in a vise surrounded with a piece of paper to prevent scratching. As I slowly brought the mill head up I would tighten the vise if the battery came up also. Eventually the battery connector pulled away almost completely from the battery casing. The atty/eGO assembly was then pulled apart by hand scratch free.

Probably a much better and simpler method would be to get a 7Mx.5 hex head bolt. Attach it to the battery taking care not to short out the inside battery terminal and wiggle back and forth while pulling apart.

If you don't care about scratches - a couple of vise grips and a little brute force would do the trick.

Hope this helps...

 

[Whistle_Pig]

Cool. Thanks for the thread pitch info. So it sounds like just a press fit -- then I can clamp the main housing and perhaps apply a bit of heat and it'll just pull out. Wish I had a collet the right size and a turret press; that'd make it easy.

 

[Scottbee]

Wish I had a collet the right size and a turret press; that'd make it easy.

That's basically how I do it.. correct size collet in my lathe and wiggle the battery housing until the Loctite and press-fit surrender.

 

[Whistle_Pig]

You have all these cool toys. I'm sooooo jealous. Maybe I need to visit my relatives in WI, so I can take a side trip and raid your house. I mean, I do need an o-scope. Really I do.

 

[player57]

It'll be interesting to hear how you do it. Let us know!

 

[DC2]

Scottbee helps us all realize that there is intelligence in Wisconsin.


EDIT: Okay Kristen, you too!
EDIT: Come on now, seriously, Wisconsin?

Why are there so many Wisconsin vapers?
What's up with that?

 

[Quitter]

To be honest with you.. I am still in search of "true" 3.7VDC devices, aside from the Kangers and mods.

Scottbee - wouldn't big batt mods like a Protege, SB etc that take 3.7 batts be true 3.7v devices? Most of em just have the batt(s) and a direct contact switch. There shouldn't be anything to reduce the loaded voltage. Am I right?

 

[Scottbee]

Scottbee - wouldn't big batt mods like a Protege, SB etc that take 3.7 batts be true 3.7v devices? Most of em just have the batt(s) and a direct contact switch. There shouldn't be anything to reduce the loaded voltage. Am I right?

Correct.. but I consider (or at least refer to) those devices as "mods". Hence my "To be honest with you.. I am still in search of "true" 3.7VDC devices, aside from the Kangers and mods."

 

[CartHeadMod]

so, if the ego and ego clone are putting out low 3s, can we expect the vgo to do likewise?.....it appears to me that the only modification is in the atomizer connection, not in regulators.....has anyone tested a vgo?....

 

[Applejackson]

Rather than reading through 30 pages, did you ever test a 306 batt?

 

[Scottbee]

Rather than reading through 30 pages, did you ever test a 306 batt?

No, I never have. Never even seen one.

 

[Applejackson]

You should check 'em out. Rocky Mountain Vapor has them (along with countless other places, that's just where I got 'em) and they're compatible with 510s. I feel like I get a slightly hotter/better puff from them, though I don't use little batts anymore.

 

[DC2]

You should check 'em out. Rocky Mountain Vapor has them (along with countless other places, that's just where I got 'em) and they're compatible with 510s. I feel like I get a slightly hotter/better puff from them, though I don't use little batts anymore.

Do you have a manual 306 battery?

I've got a couple of automatic 306 batteries. Combine them with (the very good) 306 atomizer and you have a cigarette sized device that works great. But I have to take multiple puffs for a solid drag with my 306 automatics because the cutoff kills me.

I haven't heard about manual 306 batteries yet.

 

[Applejackson]

Nah, I've only got an auto. I sometimes use it if I'm painting or something and can't touch the PV every time I want a drag. Of course this way, I can't really get a full inhale, mostly just the flavor. It's good for situations where you would've had a cig clenched in your teeth or dangling from your lips. They're not perfect by any means, and the cut off is pretty annoying (and inconsistent, sometimes it's like 2 seconds, sometimes like 8), but the voltage seems like it could be a little higher. Maybe my 510 batteries are just even weaker from more use though (before I got my V2, I used them all the time). LR 306 atties seem to be becoming very popular. If they could fix the cutoff on the batteries, they'd end up being very prevalent I think.

 

[Java_Az]

ScottBee you have a Amp setting on that meter. I would love to see the amp readings of the different batteries under load.