5V 2xAA box possible?

Status
Not open for further replies.

robl45

Super Member
ECF Veteran
Verified Member
Jan 2, 2010
965
95
florida
is it possible to make a 5v nicostick type deal in a 2AA box? I was thinking of two small 3.7 batteries in series. has anyone tried this? The 3AA box is just kinda big for me to lug around. would be fine for in the house I guess. i see some batteries that are like 380mah that might do the job. how long would they last before a recharge?
 

opuscroakus

Super Member
ECF Veteran
Verified Member
Aug 3, 2009
606
114
San Angelo, Tx
I have actually done it 2 different ways...

Here is one based on 2x14250 batts..

opuscroakus-albums-my-album-picture6224-5v2aabox14250batts.jpg


And here is one based on 2 14500 batteries..

opuscroakus-albums-my-album-picture6226-5volt-2xaa-box-14500batts.jpg


They both work well but the 14500 lasts considerably longer. I prefer the one with the 14250's though as it is prettier and still has the master on/off switch.
 

opuscroakus

Super Member
ECF Veteran
Verified Member
Aug 3, 2009
606
114
San Angelo, Tx
The 14250's required removal of the retaining clips for the battery terminals and then just a dab of hot glue to hold them against the case wall.

Both have a TI 5v regulator. In the box with the 14500's it is somewhat obscured by the excess hot glue.

The 14500 box was modeled after Boondongle's. If you do a search for his name he is using his as his avatar. Much better looking than mine. Knowing now how to solder better I could make a much better looking one.
 
Last edited:

5cardstud

ECF Guru
ECF Veteran
Verified Member
Jan 1, 2010
22,746
50,647
Wash
The 14250's required removal of the retaining clips for the battery terminals and then just a dab of hot glue to hold them against the case wall.

Both have a TI 5v regulator. In the box with the 14500's it is somewhat obscured by the excess hot glue.

The 14500 box was modeled after Boondongle's. If you do a search for his name he is using his as his avatar. Much better looking than mine. Knowing now how to solder better I could make a much better looking one.
A man after my own heart. I don't think I could build a mod without hot glue>:):)
 

four2109

Ultra Member
ECF Veteran
Verified Member
May 9, 2009
2,995
1,787
S. Indiana
robl45, the resistor is for the led. The 4 pin regulator has has a control pin for the low amp switch. Madvapes has all the info on their site.

Opus, Have you had any problems with the 14250's? I made one and lost one battery out of two pair. One heated up and I yanked it out. The second pair, one didn't charge and had very low voltage. Over discharged or the chip went bad and just wasn't giving an accurate reading. I'm ok with 3.7 so I probably won't bother with them anymore. Kinda pricey if they don't last.
 
Last edited:

opuscroakus

Super Member
ECF Veteran
Verified Member
Aug 3, 2009
606
114
San Angelo, Tx
Opus, Have you had any problems with the 14250's? I made one and lost one battery out of two pair. One heated up and I yanked it out. The second pair, one didn't charge and had very low voltage. Over discharged or the chip went bad and just wasn't giving an accurate reading. I'm ok with 3.7 so I probably won't bother with them anymore. Kinda pricey if they don't last.

I had one battery out of six that went bad. Showed voltage of 0.0. I think the protection circuit went out on it. Otherwise, all have been performing great. I have since moved on to using a Camel SNUS container with 2 18350's with a 5v regulator. I would post pictures but it is really ugly on the inside and am making another one to take its place.

on another thread I read, it said the resistor was for the microswitch, maybe its just that you need the 4 pin, not sure, but there was a resistor in that one and no led.

In the 14250 box I used a 3-pin TI 5v regulator so the resistor wasn't needed for it, only the LED. I have used the 4-pin from Madvapes on a few boxes and if you use the control pin you need the resistor for it.
 
Status
Not open for further replies.

Users who are viewing this thread