2011年12月04日
Magpul Dynamics 2nd Edition in Bluray
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Your favorite gun training in 2008 is now in Bluray
Magpul Dyamics 2nd Edition
Second Edition Features
Additional Content
1080i Remastering
Volume 1 Bloopers
The Lost Chris Costa Interviews
NEWS ARCHIVES
Your favorite gun training in 2008 is now in Bluray
Magpul Dyamics 2nd Edition
Second Edition Features
Additional Content
1080i Remastering
Volume 1 Bloopers
The Lost Chris Costa Interviews
NEWS ARCHIVES
2011年12月04日
Mini Hand Press Machine
私たちのブログを訪問していただきありがとうございます。あなたがお持ちの場合DIYの要求は私達に電子メールを送信してください。
This is the mini Hand Press Machine. One of the indispensable machines in our shop. It is a very useful machine being used by our master technicians here in the shop. If you continue visiting our blog, you will see a lot of its uses.
NEWS ARCHIVES
This is the mini Hand Press Machine. One of the indispensable machines in our shop. It is a very useful machine being used by our master technicians here in the shop. If you continue visiting our blog, you will see a lot of its uses.
NEWS ARCHIVES
2011年12月04日
Lithium Polymer Batteries
私たちのブログを訪問していただきありがとうございます。あなたがお持ちの場合DIYの要求は私達に電子メールを送信してください。
Understanding Lipoly Batteries
To simplify, Lipolies come with 5 values. This is the S, P, A, V and C ratings.
The S rating indicates how many cells there are. Usually, each cell comes in 3.7 volts each. So a 1S has 3.7 volts, 2S has 7.4 volts and 3S 11.1 volts. In contrast, NiCd & NiMh batteries come in 1.2 volts each.
The P rating makes it complicated. This comes into play when batteries are used in parralel to increase amperage. 1P means one battery SET. So a battery stating 3S2P 1100mAh means you've 2 sets of 11.1 volts 1100mAh batts that you've put together in parallel to increase the amperage for a grand total of 2200mAh. Ergo if you want to fire long, let's say you're getting into an overnight game & don't want to recharge... there's no need to purchase the expensive high Amp lipolies. You can simply get two lower lipoly batts and link them in parallel (meaning red & red, black & black) to increase amps - this is not the best scenario, but it works.
The A rating stands for Amperage. Generally speaking this talks about how long your battery will hold a particular current. The larger the value, the longer your gun keeps firing.
V rating stands for Voltage. As mentioned earlier, the number of cells (or S) affects this. Lipolies come in 3.7 volts, 7.4 volts, 11.1 volts, 14.8 volts, 18.5 volts and 22.2 volts.
Finally, we have the least understood part of a battery which is the "C" Rating. The simplest way to describe how C rating works is as follows:
Get a big bucket. Fill it up with water. That's your amps. Now drill ten holes at the bottom of the bucket. Lets just say that the amount of water that comes out is equivalent to 10C. So if you have a lipoly that's 12C... drill another 2 holes for a total of 12. So more water comes out, right? At 15C, you've 15 holes. That's more power that your battery can deliver quickly. So in effect having a 15C battery gives off more power which gives you a higher ROF.
So if you want to use lipolies but have a normal ROF - just get a lipoly battery with a very low C Rating. 8C or 10C. They're far cheaper than the standard 12C batts. Likewise, go visit RC Hobby Shops. The quality of the batts are to die for.
There are very few people in the RC community who fiddle around with the lipolies, why? Its risky. Even among the electronic engineers who do radio control, it is NOT recommended that you open a lipoly pack.
For a 2200 mAh battery, a 15C battery tends to supply power quickly. So if you need a high ROF, this works. An 8C battery also of 2200mAh, will still supply power for a long time. However, it does so it trickles. So expect your ROF to be low. BUT, it'll keep shooting for a very very long time.
One more note on C rating. The C rating affects amperage. At 10C, your amps are exactly what they are on the label. So a 1700mAh 10C battery has exactly 1700mAh. But at 12C, the same 1700mAh battery actually has a total of 2040mAh. At 15C, 1700mAh batts have a total of 2550mAh.
If you want to fire the whole day without changing lipolies... you've a choice between 3200mAh at 12C, or 1600mAh at 20C, or 2100mAh at 15C. In effect, they'll each last as about as long as the other.
NEWS ARCHIVES
Understanding Lipoly Batteries
To simplify, Lipolies come with 5 values. This is the S, P, A, V and C ratings.
The S rating indicates how many cells there are. Usually, each cell comes in 3.7 volts each. So a 1S has 3.7 volts, 2S has 7.4 volts and 3S 11.1 volts. In contrast, NiCd & NiMh batteries come in 1.2 volts each.
The P rating makes it complicated. This comes into play when batteries are used in parralel to increase amperage. 1P means one battery SET. So a battery stating 3S2P 1100mAh means you've 2 sets of 11.1 volts 1100mAh batts that you've put together in parallel to increase the amperage for a grand total of 2200mAh. Ergo if you want to fire long, let's say you're getting into an overnight game & don't want to recharge... there's no need to purchase the expensive high Amp lipolies. You can simply get two lower lipoly batts and link them in parallel (meaning red & red, black & black) to increase amps - this is not the best scenario, but it works.
The A rating stands for Amperage. Generally speaking this talks about how long your battery will hold a particular current. The larger the value, the longer your gun keeps firing.
V rating stands for Voltage. As mentioned earlier, the number of cells (or S) affects this. Lipolies come in 3.7 volts, 7.4 volts, 11.1 volts, 14.8 volts, 18.5 volts and 22.2 volts.
Finally, we have the least understood part of a battery which is the "C" Rating. The simplest way to describe how C rating works is as follows:
Get a big bucket. Fill it up with water. That's your amps. Now drill ten holes at the bottom of the bucket. Lets just say that the amount of water that comes out is equivalent to 10C. So if you have a lipoly that's 12C... drill another 2 holes for a total of 12. So more water comes out, right? At 15C, you've 15 holes. That's more power that your battery can deliver quickly. So in effect having a 15C battery gives off more power which gives you a higher ROF.
So if you want to use lipolies but have a normal ROF - just get a lipoly battery with a very low C Rating. 8C or 10C. They're far cheaper than the standard 12C batts. Likewise, go visit RC Hobby Shops. The quality of the batts are to die for.
There are very few people in the RC community who fiddle around with the lipolies, why? Its risky. Even among the electronic engineers who do radio control, it is NOT recommended that you open a lipoly pack.
For a 2200 mAh battery, a 15C battery tends to supply power quickly. So if you need a high ROF, this works. An 8C battery also of 2200mAh, will still supply power for a long time. However, it does so it trickles. So expect your ROF to be low. BUT, it'll keep shooting for a very very long time.
One more note on C rating. The C rating affects amperage. At 10C, your amps are exactly what they are on the label. So a 1700mAh 10C battery has exactly 1700mAh. But at 12C, the same 1700mAh battery actually has a total of 2040mAh. At 15C, 1700mAh batts have a total of 2550mAh.
If you want to fire the whole day without changing lipolies... you've a choice between 3200mAh at 12C, or 1600mAh at 20C, or 2100mAh at 15C. In effect, they'll each last as about as long as the other.
NEWS ARCHIVES
