First Unregulated Dual 18650 Box Mod (Haters be gone)
- Thread starter jmeldman
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What switch did you use and what are the specs? That's the only piece I'm missing from building my first.
The switch is available from radio shack. The box looks like a hammond and the 510 is a fatdaddy style. I built one myself that similar! Nice job!
First off make sure you don't exceed the amp rating on the switch. Now for a couple suggestion, you have plenty of room so I would add a master switch. The fuse suggested above is also a good idea, you might even consider a fuse for each cell. Nice clean work !
Its rated for 2 amps at 125v AC I believe. Im sure this switch will be just fine for what he is using because lowering the Voltage will increase the amp rating.
BatteryStuff Tools | AC to DC Amperage Calclator Through An Inverter
Good website to look at. So at 12volts DC it will work for 23 amps. Being your running at roughly 4 volts it should be even higher
BatteryStuff Tools | AC to DC Amperage Calclator Through An Inverter
Good website to look at. So at 12volts DC it will work for 23 amps. Being your running at roughly 4 volts it should be even higher
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It's not that simple. First, if the switch is rated for AC you're taking a risk. Second you can't just take AC rating and assume they are the same for DC. DC is much more prone to arcing, pitting and spot welding the contacts together. There are switches that are DC rated for these reason.
Your switch is not an ac to dc inverter... the tool you posted is useless.
"DC Rule of Thumb
For those switches that list an AC voltage rating only, the "DC Rule of Thumb" can be applied for determining the switch's maximum DC current rating. This "rule" states the highest amperage on the switch should perform satisfactorily up to 30 volts DC. For example, a switch which is rated at 10A 250VAC; 15A 125VAC; 3/4HP 125-250VAC, will be likely to perform satisfactorily at 15 amps up to 30 volts DC (VDC)."
Source: Amp Ratings, HP, Volts | carlingtech.com
You can assume that your 2 amp 125 volt AC switch would be about equivalent to a 2 amp 30 volt DC switch.
What is the lowest resistance coil you are firing? With the limitations of your switch, 2 amps, it needs to be at 2.1 ohms or above.
Also, to be a picky pete, you used black wire for your positive connections and red for your negative ones.
Another question on the same topic...
I have never used a mosfet before. Is it ready to go "as is" or would I need to add more with it?
I want to make the smallest possible box mod, using a single 18650. Would I be better off using a mosfet or not?
I just want as little wiring as possible, and a visually appealing switch.
Any and all advice to a simple mosfet build is appreciated right now!
I have never used a mosfet before. Is it ready to go "as is" or would I need to add more with it?
I want to make the smallest possible box mod, using a single 18650. Would I be better off using a mosfet or not?
I just want as little wiring as possible, and a visually appealing switch.
Any and all advice to a simple mosfet build is appreciated right now!
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