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LIPO HELP


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#1 dcr1326

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Posted 08 August 2008 - 07:18 PM

Ok so I have been lookin for a battery that fits in my KWA KM4S tactical for a while now. I think I found one but it has a spec listed that I don't understand. It gives that the battery is 11.1v 1600mah (12c). The 12c is what I don't understand. I looked up my old battery and it was 20c. So I am guessing that my old battery was better in some aspect than the new one I am looking at. Could some one tell me what the c is and what the difference would be between a 12c battery and a 20c battery.

Thank You very much!!!

#2 karMeister

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Posted 09 August 2008 - 03:28 AM

View Postdcr1326, on Aug 8 2008, 07:18 PM, said:

Ok so I have been lookin for a battery that fits in my KWA KM4S tactical for a while now. I think I found one but it has a spec listed that I don't understand. It gives that the battery is 11.1v 1600mah (12c). The 12c is what I don't understand. I looked up my old battery and it was 20c. So I am guessing that my old battery was better in some aspect than the new one I am looking at. Could some one tell me what the c is and what the difference would be between a 12c battery and a 20c battery.

Thank You very much!!!


C = discharge rate.  You will have higher ROF with Higher C ratings.

I think KWA recommends 15c MAX

#3 dcr1326

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Posted 10 August 2008 - 09:47 PM

Someone told me that KWA states that 15c is the max does anyone know if this is right?

#4 Guest_allizard_*

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Posted 10 August 2008 - 10:40 PM

You can read the product description again.  It saids...

Power = 8.4V, 9.6V NiMh Battery, or 7.4V, 11.1V Lithium Polymer Battery (Maximum 11.1 V, 18A continuous)

How do you determine what's 18A?  I'm still trying to fine a good answer for that.

however, 15c is what I use on my guns.  If anyone recommend 20c or more... I would say it's way too much.

#5 dcr1326

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Posted 11 August 2008 - 05:59 PM

Cool, thanx

#6 major

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Posted 13 August 2008 - 11:10 PM

View Postdcr1326, on Aug 8 2008, 08:18 PM, said:

Ok so I have been lookin for a battery that fits in my KWA KM4S tactical for a while now. I think I found one but it has a spec listed that I don't understand. It gives that the battery is 11.1v 1600mah (12c). The 12c is what I don't understand. I looked up my old battery and it was 20c. So I am guessing that my old battery was better in some aspect than the new one I am looking at. Could some one tell me what the c is and what the difference would be between a 12c battery and a 20c battery.

Thank You very much!!!
C is for current see:  http://www.airthunder.com/lipoabc.aspx
1600 MaH @ 12C.. is actually 12 amps constant discharge and 19.2 amps burst discharge max [1600 mah X 12C= 19,200/19.2 amps]. Is your old batt a lipo too? if not, then this new one is about the same as your old but probably smaller and lighter and better ROF (depends on your voltage).  If your old batt is a lipo then multiply 20C and its MaH and you'll get max burst discharge amps, obviously you already know that 20C gives you 20 amps. I've

I have a KM4S-Tactical too. Out of the box the foregrip only fits 8.4v NimH battery, airsoft extreme dremelled metal and now it fits a 9.6V Nimh mini (but a tight fit tough). This is why I started using Lipos.  You just have to lookout for the height of battery to fit in the foregrip. I think the 9.6V dimensions are 125X34X17 mm.  Most lipo 2 cell (7.4V) or 3 cell (11.1V) that are less than 2000 MaH have shorter length <125 and the width you could probably go as high as 36 mm the height though is tough, I have one lipo and the height is 19 mm and it's hard to close, so anything around 17 mm or below would be fine.  I love using my electrifly lipo 11.1v 910 Mah 20C, last I used it I spent 1,500 rds that night and batt still had juice in it. :lol:  

good luck!




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