Need help with high amp switches for custom box mod

[DENGkevon]

I'm currently in the process of creating two dual 26650 box mods, one of which is going to house the Naos Raptor, but the second will completely mechanical with the 26650's wired in series. My issue with this will be the use of it primarily running my atty's @ .3-.8ohms, Most of the tamper-proof momentary push button switches I've found are only rated for 5A-15A, and I'll be easily doubling that with this mod.

I need help finding another momentary switch that will still work or any other suggestions would be nice.

Here's a preview of the rough work where it'll be mounted and fired with the user's index finger.

 

[NikZak]

Wiring in series and 0.3-0.8 ohms is going to really stress your batteries and probably blow a couple of coils in an unregulated device... why not parallel and get double the life of the device in regards to maH ratings?

Also, why not use a 240v AC switch rather than a 12v horn switch? they're rated for more amps

 

[DENGkevon]

I still have 10 brand new Sony US26650VT's that are rated for 50A a piece, I've fired them in burst for cloud competitions in my Congestus @ .2ohms with ease. And as well, I'm not having any luck even in 240V finding a momentary switch (pref the tamper-proof ones) the size of the mod itself.

 

[NikZak]

What about something like this:

Narva 60040BL Momentary ON Push Button Horn Switch 16Amp 12 Volt 16 AMP | eBay

It's rated to 16A at 12V so should be good for you I'd say all the way down to at least 22A with 8.4V or less running through it

for reference 0.3 ohm with 2x Sony 26650VT's should get you about 28A so 'should' be pretty OK, maybe not as safe as it could be but should be OK, maybe build to 0.4-0.5ohm and be a little safer with around 20A

 

[Eros]

3a switch will work just fine. mine is dual parallel vtc5. power my .2 ohm dripper tank without burning the switch.
small enough to fit in this small powerbank.



as you can see the hole, a tactile switch used to sit over there with 3 x parallel vtc5. burned after a few long drag.

 

[Quigsworth]

3a switch will work just fine. mine is dual parallel vtc5. power my .2 ohm dripper tank without burning the switch.
small enough to fit in this small powerbank...

You really shouldn't be commenting on here if you think for a second that switching potentially 20A + with a switch rated for 3A "will work just fine"...

All switches have a duty cycle, a decent switch may be up in the 100K before failure (at it's rated current)...your switch may work for a while but it will fail...and I hope for your sake that it fails in the "open" status and it doesn't weld itself closed...having said that, enjoy your vape...

 

[david4500]

Switch - http://www.digikey.com/product-detail/en/PA41EC1100/EG4687-ND/2116166

Fuses - http://www.digikey.com/product-detail/en/RF3037-000/RF3037-000-ND/3748600

Drawing:

Or use a mosfet and use a non-rated switch:

 

[Phone Guy]

Nice submission

 

[DENGkevon]

Now will the MOFSET still be able to apply if these batteries are in series?

 

[xxvcrfuneralxx]

they sell push button ignition switches for race cars that are rated at 60amps that are about the same length as the basic 3amp just google 60 amp momentary switch got mine for around $12 on ebay

 

[xxvcrfuneralxx]

HD Push Button Start Switch 60 Amp 27 28 30 31 33 35 37 38 39 41 55 Chevy B | eBay

 

[Micsubin]

Is it better to use the fuse setup or the MOSFET or is it personal choice. I wasn't sure what a mosfet was, so I read up on it but still don't know which would be the preferred.

 

[Brokil]

Switch - Invalid Request

Fuses - Invalid Request

Drawing:

Or use a mosfet and use a non-rated switch:

I'm sorry to revive this but I am in the process of doing a box mod with three 18650's in parallel. I plan on using a MOSFET like as shown. But I am just puzzled because I've never worked with one more and I am not an electrical engineer lol. What is this gate to source 15k connecting those two pins on it.

 

[david4500]

A resistor. Grab one that is 15kohms and 1/4 watt.

MF1/4DCT52R1502F KOA Speer | Mouser