lilpo and mosfet?

[cplwest]

can you please explain wat both of these are as i was looking at buying an m4 from a uk retailer for my son for xmas and i know he want a high end decent quality m4 but ive only ever played airsoft two or tree times with him so dont really know what to get ( i have discussed the gun in question with his freind who says it is one he was looking at himself) but i dont know what either lipo or mosfet is or does

so basically can you tell me wat a lipo battery is and what advantages/disadvantages it has over a bog standard battery

and what is mosfet

tata

[Dom S]

Re: lilpo and mosfet?

Okay then:

A mosfet is an electrical component which, when used correctly in a circuit, changes the routing of the current. This speeds up trigger response time (the time between you pulling the trigger, and the shot being fired) and also helps to reduce wear on internal components.

Lipo stand for Lithium-Polymer. These batteries have some advantages and disadvantages over normal NiMH batteries. They are capable of higher power outputs, have larger "effective" storage, and in general are used to raise ROF and trigger response in AEG's. However, they can sometimes be dangerous, as they are flammable if hit sharply, and are quite sensitive to water

[cplwest]

Re: lilpo and mosfet?

sensitive to water you say? so stick it in a waterproof dive pouch??

and thanks for the help

also i hear you can make an aeg burst fire with a mosfet????? is this easy to do??

[Fizzy]

Re: lilpo and mosfet?

Personally, I wouldn't recommend using a LIPO to a newbie. Some useful info in this thread:
http://www.zeroin.co.uk/showthread.p...highlight=lipo

[sparrowhawk]

Re: lilpo and mosfet?

even though you find li-po batteries in computers and mobiles,you do need some experience,as its easy to convert your aeg to li-pos in the future,it best to stick to standard batteries,and when your son has become more familiar with everything else,then perhaps he can make the switch over

[jfox61]

Re: lilpo and mosfet?

Don't want to seem as if I am knocking anyone here but Li pos are quite safe if used correctly there are some pretty unfounded horror stories flying around the boards. take my advice visit a RC model shop ask about them there. In airsoft not many people use them. I do, but have used them for a long time now in my RC planes ships and cars and never had a single problem in 3 years of use. You need a charger that can charge them though as a standard charger isn't capable of charging them. Make sure you get one with a balancer on it. As i said any reputable RC Model shop will give you much more advice than you can get on here. I have a li po in my King arms L1 A1 and believe you me thats an expensive piece of kit to stick a so called unsafe battery in it, and if I though for one minute it was dangerous I wouldn't use them.

[dog green 1]

Re: lilpo and mosfet?

With regards to the mosfet, how easy are they to fit???? Would I right in thinking that some ACM guns have these fitted as standard.

Glad I saw this thread as I too have been woundering what mosfet meant.

Also what are bushings and why do people change them???

Just trying to get my head around all the things that seem to get mentioned when discussing ACM's

I also note that most ACM's are heavily greased up internally. If this is removed whats the best kind of lubrication to use?????

[Caveira]

Re: lilpo and mosfet?

How easy is a mosfet to fit? It really depends on your soldering skills. If, like me, you're not too good at soldering, they can be a pain to fit, but if you're OK at it, then it's a piece of the proverbial p***.

Bushings are, in effect, non-moving bearings. They are a flat it of either metal or plastic which sit in the gearbox to ease the rotation of the gear shafts. Metal are harder wearing. The larger they are, the faster speeds they can take. These can be replaced with small bearing assemblies, but how hard this is, I don't know.

When you've cleaned the grease out of the box, use a lubricant which won't cause too much metal to metal wear (which silicone oil can) and is safe on rubber. I personally use lithium grease spray from halfords.

If you're not sure, then have a look on youtube, where you'll find loads of video guides.

[centaur]

Re: lilpo and mosfet?

Using lipoly with mosfet are for experience airsofters only, those guys who knows how to set there GB properly, proper shimming is very essential for lipoly powered AEG's. Minimum set up a 7mm bearing reinforced GB. I won't suggest this for noobies.

[ThatblokewiththeScar.]

Re: lilpo and mosfet?

Don't want to seem as if I am knocking anyone here but Li pos are quite safe if used correctly there are some pretty unfounded horror stories flying around the boards. take my advice visit a RC model shop ask about them there. In airsoft not many people use them. I do, but have used them for a long time now in my RC planes ships and cars and never had a single problem in 3 years of use. You need a charger that can charge them though as a standard charger isn't capable of charging them. Make sure you get one with a balancer on it. As i said any reputable RC Model shop will give you much more advice than you can get on here. I have a li po in my King arms L1 A1 and believe you me thats an expensive piece of kit to stick a so called unsafe battery in it, and if I though for one minute it was dangerous I wouldn't use them.

Well said that man I have yet to go over to these yet purly down to cost and having more battery's than I need, however my brother ran lipo's in his RC cars for years and never had an issue once. I cant comment from experience with airsoft but these are not the devil incarnate! But for a newbie's first gun perhaps not!

CPLWEST as this is a first gun for your son might I suggest you go with tried and tested. There are plenty of good solid M4's on the market and though it is nice to have the very best or latest kit it is not always the way to go in airsoft. I am sure there are many M4 owners that can advise you on what is a good solid reliable First gun.

[hoggy21]

Re: lilpo and mosfet?

CPLWEST, if this is your sons frst gun, and you want to get him something decent, anything by ICS, Tokyo Marui, Classic Army should be enough for a starter rifle. If you really want to get something decent, its best to speak to Zero One on the phone, and they might be able to put together a package for you. They can adviseyou on the gun, what battery it will need etc.

Will regards to Li-Po - I used 11.1v li-po in my CA M15a4 for about 8 months. No problems, no issues. Eventually, after 2 years of constant use, including 8 months on li-po, the piston and a few other bits needed replacing in my gun. Partly li-po fault, but saying that, i didnt have a mosfet fitted. Sensible use of li-po wont cause any more wear than a 'wet' cell battery.
And ive only known one to explode. Ask on the MIA team board on this website. But ive never experienced problems.

[dog green 1]

Re: lilpo and mosfet?

Thanks rockinrobbin

[cplwest]

Re: lilpo and mosfet?

hi guys thanks for ur explination

just so u know it will NOT be my sons first gun (he has had several electric guns) but i dont want to ask him these questions because he will know wat i am getting him

also wat do u think of this

ics m4a1 carbine
tight barrel (tighter the more accurate?)
ics high power grenade launcher ris
magpul moe handguard
magpul cts stock

would zero one be able to put this together and build it so it has all of this on it/in it when it arrives so i just wrap it (because i woudnt know how to do all this)

[Ells]

Re: lilpo and mosfet?

get a barrel mounted grenade launcher, or the sun project ones, for tightbore go EDGI, PDI or systema

[Littletruck]

Re: lilpo and mosfet?

Don't want to seem as if I am knocking anyone here but Li pos are quite safe if used correctly there are some pretty unfounded horror stories flying around the boards. take my advice visit a RC model shop ask about them there. In airsoft not many people use them. I do, but have used them for a long time now in my RC planes ships and cars and never had a single problem in 3 years of use. You need a charger that can charge them though as a standard charger isn't capable of charging them. Make sure you get one with a balancer on it. As i said any reputable RC Model shop will give you much more advice than you can get on here. I have a li po in my King arms L1 A1 and believe you me thats an expensive piece of kit to stick a so called unsafe battery in it, and if I though for one minute it was dangerous I wouldn't use them.

Well said mate, i also have been using lipos in rc planes for years without any problems, Its the charging part that I take extra care with. I still bury the lipo in sand whilst charging to keep it nice & cool.