Battery Voltages -- Surprise!

[MadHatter]

Several posts ago I asked a few questions about this problem. After some tests and the fact that I wasn't getting 3.7v with my flashlight mod I ended up making a 14500 mod which is great by the way. After 3 months of not using my 10440 flashlight mod I received a 10440 battery replacement from my supplier, I got a deffective one in september last year, but I didn't buy anything for that supplier until now, so he included the replacement with my recent order.

So, I decided to try my new battery on my old 10440 flashlight, hooked up with my test rig and... I got 3.7v!!!! So I just wanted to say that there wasn't any problem at all with the switch of my flashlight, the real problem were my old and abused 10440 batteries that I have. I used them with LR atties, so the flashlight wasn't putting 3.7v due to old over drained batteries.

Well, just wanted to get this off my mind and let you know, and thank you, specially for the people that responded to me regarding my doubts, jimho, LowThudd and WillyB Thanks guys.

I'm glad I read your post. I just got a VP1 and after fully charging some batteries overnight, I tried it and was completely disappointed. It was giving less vapor and TH than my eGo/Riva/T-Rex. So I tried a couple different attys and still didn't improve. Went back to just using the eGo and was going to return the VP1. After reading your post I swapped out batteries and got much better results.

So my question now is what it's a good brand of 10440 battery?

 

[Kelemvor]

and your answer was:

Yes, you can use the same fast USB Joye or Riva charger for all the eGo/Riva/Tornado class fat batteries.

how could we be sure that the next supplier does not call his vgo ego? they are the same "class".
just look at all the so called manufacturrers that sell their stuff on alibaba.com

i just wanted to be sure that people don't think anything ego-like is comaptible in every way.

 

[Cee_Jay]

I've purchased five Riva sets, all five came with eGo chargers. So it's a pretty safe bet those two are compatible.

 

[shadowseed]

Thanks for the info. Hope I am not derailing the thread at all The chargers that came with my riva SE kits say: 500mah dc voltage 4.2. I am not sure what my ego chargers say since I have a bad habit of peeling stickers off I wish the riva's had the same finish as the ego's. They are both black, but not the same black. The riva SE batts have a glossy black, while the ego's have a rubbery flat black. Hopefully joye will start making batteries that have the same type of output as these SE batteries have. Its a pretty big difference!

 

[Katya]

Thanks for the info. Hope I am not derailing the thread at all The chargers that came with my riva SE kits say: 500mah dc voltage 4.2. I am not sure what my ego chargers say since I have a bad habit of peeling stickers off I wish the riva's had the same finish as the ego's. They are both black, but not the same black. The riva SE batts have a glossy black, while the ego's have a rubbery flat black. Hopefully joye will start making batteries that have the same type of output as these SE batteries have. Its a pretty big difference!

That's the charger you want. Works on eGos, Rivas and Tornados for sure. And Hello batteries.

 

[Nietzsc]

I'm glad I read your post. I just got a VP1 and after fully charging some batteries overnight, I tried it and was completely disappointed. It was giving less vapor and TH than my eGo/Riva/T-Rex. So I tried a couple different attys and still didn't improve. Went back to just using the eGo and was going to return the VP1. After reading your post I swapped out batteries and got much better results.

So my question now is what it's a good brand of 10440 battery?

So far I only tried the ones from DX (TrustFire) and the ones from HeavenGifts (it says Joye on the battery), and so far I only tried unprotected ones. I don't think that HeavenGifts carries protected ones, DealExtreme does.

I don't know for sure if there is a better brand for this kind of bats.

 

[tardcore]

in the 10440 battery size, there's not a lot that can be done. they really don't have the kind of current output we need (as far as i know). especially for low-res attys, but even for a regular 510 (let's say 2.5 ohms). these 10440's ( DealExtreme: $4.23 Ultra Fire 10440 3.6V 500mAh 2Pack ) have a tested mAh rating of about 300. let's be really generous to the ultrafire brand and say they have a 2C discharge rating. that's MAX about .6 A. meanwhile, a 2.5 ohm atty at 3.7 volts will need about 1.48 A. see what i'm gettin' at here?

 

[Scottbee]

in the 10440 battery size, there's not a lot that can be done. they really don't have the kind of current output we need (as far as i know). especially for low-res attys, but even for a regular 510 (let's say 2.5 ohms). these 10440's ( DealExtreme: $4.23 Ultra Fire 10440 3.6V 500mAh 2Pack ) have a tested mAh rating of about 300. let's be really generous to the ultrafire brand and say they have a 2C discharge rating. that's MAX about .6 A. meanwhile, a 2.5 ohm atty at 3.7 volts will need about 1.48 A. see what i'm gettin' at here?

I understand what you're saying..... but the "2C" discharge rate is very, very misleading. If that were any where near the case, then we'd need 750mAH just to "properly" fire a standard 510 atty......

 

[tardcore]

i understand, was just trying to show that even if they had that good of a discharge rate (which they don't) they still wouldn't be good enough. **CLARIFICATION** ultrafire batteries don't have a 2C discharge rating. i was merely attempting to show that even with some quality cells (AW makes a 10440, for example. rated 340 mAh, no listed discharge rating though) that size simply doesn't have the 'oomph' we require.

 

[Nietzsc]

After using 14500s for a few months I feel that the 10440 really doesn't last that long and they just don't fit my vaping needs, as you have to keep recharging them just like a regular e-cig battery.

 

[Big Hitter]

It's getting harder to tell what is what.

Is the Riva an SLB product?

Seems SLB has no qualms about using the Janty logo, packaging or name.

E-Cigarette eGo_Products Detail_SHENZHEN SAILEBAO TECHNOLOGY CO.,LTD

DSE calls their an eGo as well, but looks just like a Riva.

For the record I have one of the SLB eGos that looks just like a Riva (or is a riva). I purchased it in 08-10 and its the only one I have found that comes off the charger at 4.22 volts. It performs noticeably better than an eGo IMO.

I have no electrical knowledge at all.
I just know that it comes off the charger and I put the meter on it and hit the button ... 4.22 every time.
If I do that with an eGo it reads 3.65 or 3.66 with my meter.
No idea what its doing under load, but with Boge 2Ω cartos its a noticeable hotter vape.

 

[Big Hitter]

I'm going to try a LF Riva SE and see if I like it.

I'll take hotter on the front end with more fade any day !!

I'm never out and about that long with them anyway. I am always popping them on the charger to top them off.

 

[WillyB]

DSE calls their an eGo as well, but looks just like a Riva.

For the record I have one of the SLB eGos that looks just like a Riva (or is a riva). I purchased it in 08-10 and its the only one I have found that comes off the charger at 4.22 volts. It performs noticeably better than an eGo IMO.

SLB = DSE, that's the picture I posted. It makes sense that it would of a higher voltage as they always make cheaper knock-offs, this way they save a few cents on a controller.

For all things SLB/DSE this place usually has the best prices.

ValueVapor.com, Discount Electronic Cigarettes and e-Liquid

 

[Big Hitter]

SLB = DSE, that's the picture I posted. It makes sense that it would of a higher voltage as they always make cheaper knock-offs, this way they save a few cents on a controller.

For all things SLB/DSE this place usually has the best prices.

ValueVapor.com, Discount Electronic Cigarettes and e-Liquid

Thanks, I did not know that. Its the best looking Riva I have seen. The fit and finish is flawless.
6 months old and not a scratch or chip in the finish. And the threads on both the cone and atty connector are much better than the EastMall ones. Even the atomizers were decent (I'm a Cisco snob )I would order one again anyday.

 

[Pav]

I had read this thread last year and forgotten about it. Just now catching up. How is this not a sticky? Seriously Scott (and other contributors), awesome stuff.

Quick question. Are the Riva batteries the same as the Elegant from Cigeasy? (they pretty much look identical). Ever tried one of those? I'm pretty sure from subjective experience the Elegant gives a DC voltage compared to the PWM of the Ego.

Strange, but I personally prefer the Ego to the Elegant now (using LR 2.0 cartos).

 

[Whistle_Pig]

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.

Well, I finally tried this -- without benefit of cool tools. I just cut through the housing near the top of the switch chamber using a hacksaw. Just wanted the connector anyway.

But I thought the batt would just pull out, and when I tried that, I got a little pfffft noise and a little smoke cloud. Well, it shows 4.1V (no load). Was a "dead" batt I got from another forum member. Guess maybe just the switch was busted.

Anyways, I've got a chunk of shrink tubing around the positive lead to prevent further contact, but what appears to be a foil wrapper is torn. I'm thinking to be safe, I should carefully remove the bottom of the casing and push the battery out.

Whaddaya think?

 

[shadowseed]

I would be curious to see if the ego-t batteries perform any different under load. If the Riva batteries are working differently, its possible newer ego batteries might also?

 

[Pav]

I would be curious to see if the ego-t batteries perform any different under load. If the Riva batteries are working differently, its possible newer ego batteries might also?

I guess anything is possible. But I'm currently alternating an old ego with a new egoT battery and can't subjectively tell the difference.

 

[Scottbee]

I would be curious to see if the ego-t batteries perform any different under load. If the Riva batteries are working differently, its possible newer ego batteries might also?

The eGo-T batteries have been fully tested. They appear to use the same PWM algorithm as the "newer" 900 and USB batteries (traces shown in this thread). Sooo... they appear to be the new-style firmware with the addition of the 5-click shutoff.

 

[Scottbee]

Whaddaya think?

The "bottom" (negative pole) of the battery is soldered to the end cap of the tube on the non-USB batteries. This solder connection completes the negative circuit and it is necessary for charging and power delivery. As an aside, it is not uncommon for this colder joint to be "broken". When this happens, the performance will often be inconsistent....