ICS SiG 552 'Commando' battery Guide...at last!

Posted by Yosser H On Wednesday, March 04, 2009

News ArchivesSiG Stuff
Battery News for the ICS SiG552 'Commando'

ICS on their website have at last produced an information sheet on batteries for their superb AEG the SiG552 'Commando'. This is good news considering the only criticism I gave this AEG in my REVIEW was the fiddly battery installation. See the links for more details.


It was interesting to see the recommended dimensions for the LiPo battery L: 132mm W: 21mm H: 16mm

I have reproduced the info sheet here:






Select the image for a clearer picture of the info sheet

STOP-PRESS see the new foregrip from ICS which will allow the fitting of a large battery HERE.

Checkout all the great SiG Stuff and accessories here

Reactions: 

9 comments

  1. harry Said,

    Is the gearbox properly reinforced for a 11.1 V lipo?

    Posted on November 25, 2009 at 9:48 PM

     
  2. Yosser Said,

    Good question Harry and one I can't answer for certain.

    The official ICS web site has it listed here:
    http://www.icsbb.com/eicsbb/page3.asp?bignum=7&picid=609

    Its part ID is MC-14 and the 'official' battery guide mentions Lipo's and everyone else seems to confirm it's suitability for use with LiPo.

    Guess the risk is 'ours' to take!

    Posted on November 26, 2009 at 9:32 PM

     
  3. harry Said,

    Do you use a 11.1V or a 7.4V?

    Posted on November 27, 2009 at 1:00 AM

     
  4. Yosser Said,

    The LiPo I'm currently using from Kong Power is 11.1v and looks exactly like the one in the above battery guide.

    Posted on November 27, 2009 at 7:53 PM

     
  5. Thomas Said,

    You have to take into account the supplied amperage in addition to the voltage of the lipo. If your 11.1v lipo can't deliver as much amperage as the AEG drains, then a high drain 7.4v lipo could perform just as well. The formula is Ampere*C-rate=Max Potential Drain. If you need a very small lipo, then the chances are you'll end up with a low drain battery. Then, an option is to go for a 3-cell lipo instead of a 2-cell one. This compensates for the drop in ROF. This is simply another way of suppling more watts.

    Many people also misunderstand what's really needed in a high ROF-setup. Higher durability will only cause more havoc if set up wrong. Mostly you need to make sure that the sector gear won't engage the piston prematurely. In my opinion, some of the most important things are having a light piston assembly, vented piston head, Bearing Spring Guide, adjusted Angle of Engagement, shaving down the piston's 2nd and 3rd teeth approperiately and maybe even short-stroking the piston. Many of these things are easy to fix yourself if you're handy.

    Posted on July 10, 2010 at 7:25 AM

     
  6. Yosser Said,

    thanks for the useful info on LiPo's Thomas. I also us a 7.4v which whilst not delivering the ROF of the 11.1v is still good. AND more importantly is far easier to change in the field as compared to the 'standard' batts in the foregrip of this otherwise excellent AEG.

    Posted on July 10, 2010 at 8:24 PM

     
  7. Thomas Said,

    You're welcome :) And yeah, I mostly recommend high drain 7.4v lipos. Usually it's more than enough for most people. This is of course the case where you have the space to accommodate the more commonly size lipos that are +-34mm wide (close to mini-type batteries). Most of these comes in lengths from 110mm and less, but you need to pay good attention to the thickness, so that it fits your needs! I recommend www.hobbyking.com as they are both cheap and good. Go for the Turnigy brand if you shop there.
    More importantly, how high an amperage do you need? Most AEGs seems to pull only 15-20Ampere, but a thumb rule is get to batteries that can supply at least the double. I found no difference between a lipo supplying 30Amps, and a lipo supplying 72Amps.
    If you need to custom build the lipo for your SIG, then this is also possible. The Turnigy batteries are easy to disassemble, and afterwards you can desolder the cells and build your own battery pack the way you want it. Just make sure to mask the other battery terminals with tape, so that you won't accidentally short the cells while working. I made a custom battery pack that actually fit inside the A.C.M. rail foregrip for TM-compatible SIG 552's.

    Posted on July 12, 2010 at 1:39 PM

     
  8. Yosser Said,

    I got the KB-1115-3a from Kong Power which must be said is performing most excellently in this AEG. see the post here:
    http://airsoftodyssey.blogspot.com/2009/05/lipo-has-landed.html

    Posted on July 12, 2010 at 2:21 PM

     
  9. Thomas Said,

    Yeah. At 16.5 Amps, you shouldn't be that far from the max your AEG pulls. This is of course depending on how powerful a spring you're running in your gun. I would love to know how high a ROF you're getting! I'm in the process of getting myself an ICS 552 or 551, now that I've sold my pimped out JG 552.

    Posted on July 12, 2010 at 2:46 PM

     

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