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Messages - axisofoil

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31
AEG's / Re: not shooting
« on: July 02, 2011, 09:37:03 AM »
Quote from: "KillerDragn"
Yeah, When you say: "Swap out all your plugs", I can only guess the only plug on the gun being the Battery Plugin. Correct

The battery is a Tenergy 7.4v 1600mah LiPo, 20c Written on the battery itself.

Is there anything extra I should know about LiPo's besides the common sense, Can I basically, Store my LiPo in a cool clean environment, and leaving it after i'm done using it (Storing it), would having it not charged after awhile sap the cells? (Curious here, I wish my High School offered a Workshop class with Electronics). Lipo's self-drain is much, much lower than that of nicad or nimh, but every month or two you might want to check them. Store them between 50% and 90% charge, if possible.

Once I purchase a Higher voltage lipo later on (Probably my next purchase as far as batteries, A 9.6v No doubt) I plan to purchase some deans connectors and swap out the Tamiya small type, then do the same to all my batteries (I hear Deans > Tamiya, any day from some people, as it offers less resistance on the current?) Basically, yes. It's still a good idea to swap them out with the 7.4, as your current battery will discharge 32amps at the 20c output. That is greater than the 15amp rating of the high quality, small tami connectors. Lower quality connectors will have lower maximum currents.

Link to the battery if it matturz:
http://www.airsoftgi.com/product_info.p ... ts_id=8211

I'm confident with the gearbox I have within my gun to handle the stress from a LiPo (Going upto a High Torque motor here soon, along with the Deans and 9.6v later on) Again, a 7.4 lipo certainly won't be terrifically increasing stresses or wear on your gearbox, just your rof. If you have a serious issue in your gearbox, it may exacerbate the problem somewhat, however, by increasing your ROF, you decrease the time it takes to fire the same number or rounds, which gives a perceived 'increase' in gearbox wear.

Gearbox if it'd help any:
http://www.airsoftpost.com/product_info ... s_id=33763

I'm not asking if my gun is "LiPo Ready", any gun takes wear and tear, but wondering
This applies to ANY airsoft gun, but especially if you're worried about the "power of the almighty lipo" (/sarcasm)... SHIM YOUR GEARBOX CORRECTLY, and MAKE SURE IT IS PROPERLY LUBED.



Quote from: "sinfulpain"

Don't bother with Tenergy again. I have 2 11.1's where one cell is .5-.75v lower than the other 2 after a days worth of games (I checked the voltage of the pack whenever I got the chance, so I had an idea when/if I needed to change). They're both retired for now, until I remove the bad cell, and convert the pack to a 7.4. They hadn't even seen 30 charge/discharge cycles by the time that happened. Internal resistance checked my #$@. I could build a better pack than that garbage! Sounds like you just need to balance those packs, unless you over-discharged the low cell.

As for storage, store the cells at 3.6 or 3.7 volts per cell. If you store them charged, their capacity will diminish quickly (about 50-70% capacity after storing at full power for a year). This isn't their state of charge I'm talking about, but their physical capacity. It would basically drop from 1600mAh to about 800mAh. Check each individual cell, not the pack voltage, as the individual voltages may vary. I've never seen a lipo build up a memory from being stored charged. In fact, most manufacturers recommend that you store them with an intermediate to high charge (such as 3.6 or 3.7 volts, as you've recommended. I just don't want them confused and think that this means to store them dead). Link to some RC enthusiasts who agree http://www.rcgroups.com/forums/showthread.php?t=593322

I would also suggest charging the LiPo outside, just to CYA. Worst case, you have a char mark on the ground, and need a new charger. Better than having no house! Not as big of a deal if he has a liposac, which the OP said he did. It just fills your house with noxious fumes if it vents. That smell delicious... beware, a delicious sugary smell similar to that of sugar cookies coming out of the oven means your lipo has vented and you are now breathing toxic fumes.

The Deans>Tamiya is correct. REAL Deans connectors can handle up to about 70-80 amps constant. Mini Tamiyas are about 9, and Large are 13. I've found they can handle a bit more than that in an airsoft gun... their 'constant' rating isn't the big factor unless you're sitting on your trigger for greater than 10-15 seconds at a time, but yes, switch these out.

Overdischarging the pack will kill it, and if you charge it after overdischarging it, the chances of it going all Allah Ahkbar on your ass greatly increases! The good news is, I believe that tenergy cells have an over-discharge lockout, meaning that if they're over-discharged, they will just stop working entirely instead of allowing you to charge them with potentially disastrous results.


In short:
1. Liposac (you said you have one, that's good)
2. Good charger, make sure it has balancing
3. USE THE BALANCING FEATURE, it will make sure all your cells have the same voltage, and help prevent over-charging and over-discharging of single cells in the pack.
4. Dean's connectors (they're a real good idea, just do it. They're cheap)
5. Don't stab your batteries
6. Store with an intermediate charge at room temperature.
7. If you fully charge a battery inside during the winter, it will suddenly be overcharged when you take it outside and it's cold. Similarly, if you charge it outside during the summer, and then bring it inside for storage, the voltage will spike. Battery voltage is dependent upon the readiness of the cells to undergo a chemical change, and as such, is temperature dependent. This one doesn't get mentioned much, so I thought I would put it out there.
8. Lipo manufacturers across the board (with only a few exceptions, your battery is NOT one of the exceptions) recommend charging at less than a 1C charge rate. (1C means you charge a 1600 mAh battery at 1600mA, 1/2C means you charge it at 800mA, and 2C means you charge it at 3200mA). The slower you charge, the less permanent damage is done. If you have time, a 1/10C charge rate will leave almost no chemical signature on the cells, and as such will not significantly damage them.

32
AEG's / Re: not shooting
« on: July 01, 2011, 10:30:53 AM »
or you burnt out a motor.

or something else completely non-electrical broke.

or your battery blew an internal fuse.

or you blew the fuse on the wiring harness.

There's a lot of stuff that could be wrong, as the original post is completely and entirely vague. Also, I have still never seen a set of trigger contacts that actually burnt out from using a lipo. One or two that was out of adjustment, on a gun that coincidentally happened to be using a lipo, but never "burnt out".

33
General Airsoft Discussion / Re: Tell me: How much have you spent?
« on: June 24, 2011, 02:54:36 PM »
Quote from: "Crono0001"
Almost enough to pay a semester of college tuition at the UA.

Sounds like xavi's well on the way to having spent enough to pay for a semester at Riddle.

34
General Airsoft Discussion / Re: Tell me: How much have you spent?
« on: June 23, 2011, 02:01:53 PM »
Not nearly as much as I have spent on real-steel.

More than the cost of a used car.

35
I got these back when you were only on AZS. They're very high quality patches, quality stitching all around, good strong velcro that seems to even be bonded in the center (lots of patch makers don't do this, not doing it makes patches appear puffy when on a rounded surface).

If I had a use for more of the patches, I wouldn't hesitate to get them again. Oh, and they were at my door less than 48 hours from the time I put my order in.

36
Quote from: "Major Buttnuts"
I haven't seen a game there in quite a while - might have to try to make it.  Prescott games were always fun. [smilie=armata_pdt_34.gif]

I know of at least 3 in the last 2 years that I have posted both here and on TAC.

37
Airsoft Items WANTED / Re: wanted: magpul aeg
« on: June 21, 2011, 03:46:47 PM »
You looking for a gun with magpul furniture, or an actual magpul licensed aeg?

38
Real Firearms / Re: My latest project
« on: June 17, 2011, 01:31:05 PM »
You'll get a lot more "that's awesome!" comments at arizonashooting.

I'm glad to hear you enjoy it. I'm currently building a PSA/Aero Carbine (keeping it 5.56 for now)... couldn't swing the RRA parts. Or an nfa stamp for that matter... that stuff is $$$.

What kind of sight is that? looks mean. And, why not a dedicated 9mm lower? I mean, I get the appeal for people that need to just switch out uppers to conserve the wallet. I didn't think that that need applied to anyone willing to pay for an nfa stamp.

I need... at least 6 of these.

So, SBR... does that mean that it falls under the category that you can put the select-fire stuff in it? Or is it something registered as an MG is okay to SBR?... I'm pretty sure it only works in one direction.

Edit:
Looked it up... mg can be sbr'd, not the other way around. lol.

39
I imagine they didn't. lol.

Those are a ton of fun to play with though.

40
Quote from: "xXmusicimpactXx"
Quote from: "KillerDragn"
Quote from: "Renengan"
THIS JUST IN!

(as said by Airsoft GI's Facebook page) "The California Paintball Safety Coalition has convinced Senator De Leon to amend SB798 to exempt paintball from this bill. This Coalition is now asking people to contact Senator De Leon to thank him for working with the paintball industry and that they support the bill. That means this bill will allow ALL BLACK PAINTBALL REPLICAS OF FIREARMS TO EXIST while forcing Airsoft guns to be brightly colored."

So you can have a black paintball M4, but not a black airsoft M4... Because it makes such a difference if someone points either one @ a cop @ a distance or @ night #-o ...

I was laughing hard and then almost broke my hand against my desk beating it to death in anger.
It's because even 'realistic' paintball guns still look unrealistic with their giant gas tanks and whatnot. I wouldn't be surprised to learn that was the argument the Paintball Safety Coalition used themselves.

I don't know... http://bignews.biz/primages/19/combat_paintball_pistol_350.jpg
They don't ALL look fake.

41
Quote from: "Dilligaf"
I would be down to round up some players from down here in yuma to go little different terrain from what we r used to but i think we will manage

That's the point. You get something different to play in, and I don't have to drive 2-5 hours to attend everyone else's games down south, or REALLY down south in your case.

42
AEG's / Re: Gradual Gearbox Lock up-Version 3.
« on: June 15, 2011, 10:55:08 AM »
Quote from: "icorus16666"
i used the clue that he was using a highspeed gearset, indicating that he was using a standard motor or something comparable(just a hunch). Well never no unless he indicates every part in his box. But i agree with you that standard gears can pull back that hot of a spring. The reliability of that system though would be diminished though.

I've done many thousands of rounds on an M175 with standard ratio gears. Reliability is there in my book.

43
AEG's / Re: Gradual Gearbox Lock up-Version 3.
« on: June 15, 2011, 10:06:22 AM »
Quote from: "icorus16666"
if you are just pulling back a m130 or less standard ratio will do fine.

If you're pulling back an M175, standard ratio will do fine. As long as you have the motor for it.

44
AEG's / Re: Help removing G&P triangle front sight please??????
« on: June 14, 2011, 03:06:57 PM »
Get a bigger hammer if you need to punch out the pins and they aren't moving.

45
Airsoft Items FOR SALE / Re: King Arms SR16 - (Updated 4-18-11)
« on: June 12, 2011, 05:43:33 PM »
Sale fell through. Bump.

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