Elvis
New Member
Formerly BobHuckins
Posts: 233
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Post by Elvis on Dec 24, 2014 19:23:19 GMT -5
Hello, my friend would like to start running a 11.1 volt lipo battery. So, him and I have been doing lots of research and we have came across the fact that he will likely need a mosfet as he has a combat machine. We have been looking and looking for a mosfet but it seems like there is a very scarce selection of them, and bad reviews and out of stock plague most of the reasonably priced ones.
My questions are:
1. What is the best mosfet for under $40 (links would be nice as we really can't find many mosfets)
2. From my understanding, the mosfets that you just "plug" into your battery do not work, but rather you need ones that replace the current wiring, is this true?
3. What else should we know
Thanks a lot!
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ctres
New Member
Posts: 955
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Post by ctres on Dec 24, 2014 20:43:20 GMT -5
1. For a basic mosfet I'd suggest you buy from one of the guys on airsoftmechanics. They mostly list their fets on the forums but a few are sold on other sites such as the ones below. www.brillarmory.com/index.php?main_page=product_info&cPath=48&products_id=284www.clandestineairsoft.com/electrical-parts-c-1_27/?zenid=3a5f39dea657ad12c543e9db1a018e8eAs for a computerized fet with tons of features the BTC spectre is the only one I'd go for. I have it myself and it is a true drop in fit and functions flawlessly. 2. You are correct. You need to either wire the fet into your trigger contacts or buy one of the complete harnesses with the mosfet like some of the ones listed above. I prefer to just wire it in since I am comfortable with soldering and usually there is no need to replace the trigger contacts. This also allows you to position the fet wherever you want it in your harness. The reason the plug and play ones don't work is that they do not bypass the trigger contacts. The whole point of the mosfet is essentially to use it to handle the current rather than the trigger contacts. Without a mosfet the high current a voltage of a lipo battery can cause arcing (sparks) between the trigger contacts which causes them to corrode and break down. A mosfet is a solid state switch so it does not have this problem. The mosfet bypasses the trigger contacts and then your trigger contacts are simply used as a signal to tell the mosfet when to close the circuit. This prevents arcing on the contacts. 3. That's the basics, but there is a lot more to be learned, I'd recommend airsoftmechanics for good reading on mosfets and other technical topics.
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Mosfets
Dec 25, 2014 11:17:06 GMT -5
Post by Stinger on Dec 25, 2014 11:17:06 GMT -5
I've used the GATE NanoSSR and more recently the NanoASR. Both are very nice.
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Elvis
New Member
Formerly BobHuckins
Posts: 233
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Post by Elvis on Dec 25, 2014 11:30:33 GMT -5
Thanks guys for your help! I think my friend will be buying the "nuke" mosfet that was linked
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