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Author Topic: Li-Poly batteries?  (Read 1728 times)

Offline Pheonix 797

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Li-Poly batteries?
« on: December 10, 2007, 09:16:46 AM »
http://store.matrixbb.com/servlet/-strs ... ert/Detail

Too good to be true? And has anybody ever used Evike? They seem very "Jungletoy-ish" from their website...
« Last Edit: December 31, 1969, 05:00:00 PM by Pheonix 797 »
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Offline XavierMace

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« Reply #1 on: December 10, 2007, 09:25:11 AM »
I have yet to have Evike get an order correct and ship it complete on the first try.  The last order I did with them (and it will be the last) required me to dispute the charges on my card for the items they didn't ship because they ignored the 12 emails and 5 phone calls I made.

I would rather pay extra and get it from somebody I trust.

Also, as far as Li-Po's go that is a piss poor battery.

Edit: I would also recommend checking out this thread - http://www.airsoftretreat.com/forums/in ... ic=34389.0

Evike is one of only a couple of retailers (the only major one) to get an "F" based on customer feedback.
« Last Edit: December 31, 1969, 05:00:00 PM by XavierMace »
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Offline PHX COBRA

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« Reply #2 on: December 10, 2007, 09:36:21 AM »
Vince uses a Li-Po in his Scar and it seems to work pretty well from what he has said.

I am sure he will chime in.
« Last Edit: December 31, 1969, 05:00:00 PM by PHX COBRA »
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Offline Airsofter1

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« Reply #3 on: December 10, 2007, 11:54:42 AM »
I use Li-Polys on two AEGs in my possession and they work fantastic.
« Last Edit: December 31, 1969, 05:00:00 PM by Airsofter1 »
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Offline CipherBlue

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« Reply #4 on: December 10, 2007, 11:59:27 AM »
about 90% of Tac prior to S3 Airsoft used Evike they are not in the least Jungle Toyish at all just a cheap website. good company and usually very fast response times.
« Last Edit: December 31, 1969, 05:00:00 PM by CipherBlue »
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"One machine can do the work of fifty ordinary men. No machine can do the work of one extraordinary man." ~ Elbert Hubbard

Offline XavierMace

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« Reply #5 on: December 10, 2007, 12:34:20 PM »
Really?  Let's see

ICS Full Stock - 3 weeks
Drop leg holster - 1 month
ICS Stock Adapter - 5 weeks
Systema Standard Ratio Gears - 2.5 months and counting

I personally know several other people who had evike take over a month to ship them their product.  Evike is the only retailer I have ALWAYS had problems with.  I have spent over 5k at Redwolf and over 3k at ASGI and never had a problem with either of them.  I have yet to have an order take more than 4 days to reach my doorstep from Redwolf.

They will not tell you an item is out of stock.  If only part of your order is out of stock they will send you a paper with the rest of your order letting you know half your order is out of stock.  If nothing you want is in stock they will sit there until you call them.

Besides that their whole "Matrix" brand is nothing more than an attempt to take advantage of people by hiding the brand of the gun.  You couldn't pay me to do business with Evike again.  Evike is without a doubt the most dishonest, unprofessional retailer I have EVER dealt with.

Besides like I said evike aside, that's a POS battery anyways.  Get one from cheapbatterypacks.com or some other place that actually sells batteries.  That battery is both a low discharge and low capacity battery.  You can get a better discharge rate out of a decent Large NiMH battery.
« Last Edit: December 31, 1969, 05:00:00 PM by XavierMace »
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Offline azsarge

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« Reply #6 on: December 10, 2007, 12:49:46 PM »
Someone want to fill me in about the basic advantages to these packs?

Also, has anyone that's been using them for awhile noticed a decrease in performance over long periods of use and cycling?  (ie charges not lasting as long after 20 or so cycles)

No searching.  I'm pulling the "shitty internet connection" card here. :lol:
« Last Edit: December 31, 1969, 05:00:00 PM by azsarge »
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Offline bopper9052

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« Reply #7 on: December 10, 2007, 01:18:30 PM »
Don't order from Evike, My friend bought a CA SCAR from there, and bought a bipod foregrip with it, and they  sent him a JLS SCAR. He didn't realize it till yesterday which is about a year after the purchase. They aren't a good place to buy from.
« Last Edit: December 31, 1969, 05:00:00 PM by bopper9052 »
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Offline Altered_Soul

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« Reply #8 on: December 10, 2007, 01:37:33 PM »
Good Li-pos, read, the normal ones and not the crappy ones (like the one above), are known for the small size (small size = awesome for airsoft), comparable power to NiCd and NiMH, and their output provides WTF RoF.  I have seen them in action, and its insane.  

Down side, expensive, high RoF can wear down gearbox innards and itself much quicker (common sense), and something else that I just had a brain fart and can't remember :(.

But they are still pretty cool, and the ability to fit in a lot of places large batteries can't is never undervalued.
« Last Edit: December 31, 1969, 05:00:00 PM by Altered_Soul »
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Offline Ares

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« Reply #9 on: December 10, 2007, 01:40:55 PM »
does gonzo still make batteries? can i buy a Li-Po pack from him? Or for my application (G&P crane stock) should i stick to NiMH?
« Last Edit: December 31, 1969, 05:00:00 PM by Ares »
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Offline Airsofter1

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« Reply #10 on: December 10, 2007, 03:14:50 PM »
I have no first hand experience with that particular battery, but from the specs they listed on there site it seems like a very good one.

Lithium Polymer batteries have more energy per volume than NiCads and NiMhs.  A 11.1v Li-Poly will give you a significant increase in ROF, but a 7.4v will provide about the same ROF as a 9.6v mini Nicad or Nimh.  The battery will last a lot longer than a comparably sized Nicad/Nimh batt.  
There is more care and attention that is needed when dealing with Li-Polys.  If the voltage drops too low you can permanently damage the whole pack, and special chargers are required as well.  A damaged pack or improperly charged one can even blow up.

Gonzo doesn't make Li-Po batteries.
« Last Edit: December 31, 1969, 05:00:00 PM by Airsofter1 »
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Offline XavierMace

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« Reply #11 on: December 10, 2007, 04:14:43 PM »
The reason a 7.4v Li-Po will provide the same (or better) ROF as a 9.6v normal battery is the discharge rate on a decent Li-Po is 40+ amps (compared to 15 on a Ni-CD/Ni-MH).  Hence the reason those Li-Po's from Evike suck.  They are putting out a piss poor 18 amps consistent.  That's downright pathetic for a Li-Po.  If I was going to spend the money on a Li-Po + Charger, I would not settle for less than 45amps.

Keep in mind that since you are doubling the current the rest of your electrical components needs to be up to the task.  You are going to want decent wiring and a mosfet wouldn't be a bad idea either.

Edit: For that price you should be looking at 2200mah with a 50-55amp constant output.
« Last Edit: December 31, 1969, 05:00:00 PM by XavierMace »
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Offline Farslayer

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Re: Li-Poly batteries?
« Reply #12 on: October 11, 2008, 10:35:37 AM »
« Last Edit: December 31, 1969, 05:00:00 PM by Guest »
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Benn

Offline BATMAN

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Re: Li-Poly batteries?
« Reply #13 on: October 13, 2008, 12:47:58 AM »
Farslayer, that article was a really good find.  As a once-employee of Batteries Plus, I can say that is one of the most spot-on articles about Li-Po batteries I have ever read.  I will say, though, he does downplay the disadvantages of the Li-Po chemistry in the extreme.  Li-Po's are NOT the end-all battery; there is still plenty of reason to use NiCD/NiMH chemistries.  Overall, though, he does lay down some important battery facts very, very well.
-BATMAN
« Last Edit: December 31, 1969, 05:00:00 PM by Guest »
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Offline Whiskey11

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Re: Li-Poly batteries?
« Reply #14 on: October 13, 2008, 12:08:06 PM »
He also fails to mention the use of Protected LiPo packs.  Packs that have sercuitry built in to prevent overcharge/overdischarge.  I personally never recommend LiPo's to people unless they plan on purchasing some sort of cell monitoring device to put in their AEG to prevent over discharge (even for protected LiPo's).  As such that basically leaves you with using Project Wolf Dragon's Lipo board in conjunction with the SW-Computer/SW-Evolution or SW-Panther.  Which is a good thing in the long run of it anyways.

Until Lipo's cool down (price wise) a bit, I really have no desire to use them.  The infastructure change is immense for me (Would probably end up spending close to 200$ to retrofit AEG's and get the chargers let alone the cost of the LiPo) which right now is not feasible.  Untill my 3 8.4v 3500 mAh batteries take a crap on me, I wont be switching because my 8.4v's do just fine for my purposes.

I think the main draw for me to a LiPo would be the running the motor at 100% part.  Not the ROF aspect.  I could care less about ROF!  It's about the trigger response for me!
« Last Edit: December 31, 1969, 05:00:00 PM by Guest »
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