Square box - Square battery

[Sci]

This is an 1800 mAh 3.7v Fuji camera battery. The charger in the last pic charges it up to 4.2v & shuts down. The vapor cuts off around 3.2v. It lasts all day +.
I've been using this for a couple of weeks & I metered(quite a few times) the voltages before I posted. These batteries are supposed to have some sort of protection circuit in them, but I haven't been able to find the specs for it. I got the springs for the terminals from a AAA box. This battery has 3 terminals. The 2 outer ones are the + & -. The battery is writing side down because of how I wanted the wires to run.
The 'hit' seems smoother with this, but it puts out the same amount of vapor. I've been using 510 cartos & also a 510 LR atty, it works great with both.
All in all, this works pretty good. I'm happy with it. I just felt with all of these square mod boxes around, at least one should have a square battery.

 

[nicotime]

Schweeet...I vote all batts be made square from now on too.

I just got that box too and still pondering how to configure it.

 

[Parky50]

Great looking mod !!!

Love how nice and tidy the whole layout is ~~~

 

[LukeNM]

I wonder how big this 5v square battery is?

Wholesale-10pcs Rechargeable 12000 mAh 5V Battery 1200mAh for...USD102.15 Wholesale Price at DHgate.com

 

[5cardstud]

Now that is one sweet mod. You did one heck of a nice job. Should call it the cleanest mod on ECF.

 

[jiff]

That looks really slick. Definately like that one. The all white makes it look almost iPod-ish.

 

[Ryan Toupal]

Nice, I didn't realize the square batteries had enough output/drain or however you say it. I wonder what the long term life will be like. Any drawbacks that you see? No output at 3.1v?

 

[Sci]

Thank you all, I like it.

LukeNM- I don't know. I looked at the site & they didn't really say. I'm looking at one on ebay, 24000mAh Emergency Battery Charger For SONY PSP NDSL US - eBay that's 24000 mAh.
It's about 3 X 1.3 X 1.2 inches. It only puts out 700ma though. But, the container looks kool though & it has a built in charger.

 

[Sci]

Nice, I didn't realize the square batteries had enough output/drain or however you say it. I wonder what the long term life will be like. Any drawbacks that you see? No output at 3.1v?

The vapor gets real weak around 3.3v - 3.1v, so that's when I put it on the charger. No sense in taking chances. I don't know the actual current output, my multimeter only goes up to 200ma. There is a setting for 10A, but I've never got that to work correctly.

Make sure you get a charger for the battery you are using. I got one that was still charging strong at 4.2v. I found the one in the picture & it cuts off @ 4.2v, so that's the one I'm going to use. Only using up 1v or so doesn't sound like much, but this one lasts all day.

The only drawback that I can see is you can't take pictures while you're vaping.

 

[suddenly]

I really like it. It looks sharp I will send you my address.

 

[CloudBurst]

I have a few of these laying around too but wasn't sure how to wire it, can you post a wiring diagram?? Very nice looking mod, Sci! What box is that?

 

[Huffheinz]

Beautiful job! I love the nice, clean wiring.

 

[Sgood1971]

Sci, your work is always so tight and neat. I really like the looks of this one.

 

[CloudBurst]

Me too, me too!!

 

[Sci]

First off, thank you all.

I have a few of these laying around too but wasn't sure how to wire it, can you post a wiring diagram?? Very nice looking mod, Sci! What box is that?

The box is this one. Notice that my diagram is for the battery I used(Fuji NP-120). I used a meter to figure out positive & negative. You need to make sure which is which on the battery you have.

If anyone decides to try a mod like this, I can't say enough, be careful. These are Li-ion & the normal precautions are required. Make sure to read as much as you can about the battery you choose to use & be safe. As I said, when the vapor production gets weak on this one, 3.1-3.3v, I quit using it & put it in the charger. I read somewhere that the battery I used has some sort of protection circuit. I can't find exactly what it is, so I don't chance overdischarging it. The charger protects it from overcharge. Make sure you get the charger for the battery you plan to use.

Here's a pic(different manufacturer, but same battery) showing what the terminal end looks like. On mine, the writing is on the other side.

Now, the diagram.

I wired the momentary(blue) switch before the master switch. Normally it's done the other way around. When I get the chance, the next one will be wired with the master before the momentary to see if it makes any difference.

This is not a very good drawing. Look at the 4th pic in my original post, you can see everything but the black wire.

 

[CloudBurst]

This is great, thanks Sci!

 

[Sci]

This is great, thanks Sci!

Your welcome. Do your battery terminals look like the pic I posted? What you can do is put the multimeter to the two outside terminals, if you get a negative voltage, swap them. If you then get a positive voltage, you know which one is which(+ or -). I've read the the center terminal puts out info to the camera about charging levels. I haven't figured out how to use that one yet, but it could be interesting.

 

[CloudBurst]

I'm going to try a cell phone batty and it has the = & - marked, actually has 4 leads. I'll let you know...

 

[Bubo]

I've always wondered what the third terminal on the battery is used for - I assumed some sort of ground.... You've found no use for it?

 

[CloudBurst]

Sci- what box is that?