Piston Problems

[Draeden]

I have a JG G36 and its weird because whenever the battery gets to about 1/3 its charge the piston doesn't seem to come back all the way to load another BB
making the gun stop working
Does anyone know what the problem is? What i can do to fix it? Or if i have to repair/replace parts?

[Azul]

Your battery does not have enough amperage to supply the gun

Best bet is to get a better one

[silence]

Its not a piston problem, its just your battery. Your battery does not have enough juice to pull the spring/piston all the way back. If your piston is locked back, you can come over and we can use my lipo to move the piston back into place. All your problem is, is that when your battery gets low it isnt powerful enough to pull the spring. Its not a "problem", its just a sign that you need to recharge your battery.

[Draeden]

so sholud i get a 9.6v battery to go with my gun?

[Lucky]

no get a better 8.4 the ones commonly shipped with guns are very low grade batteries.  an Elite 8.4 will work fine and last all day

[silence]

well, its opinion. An 8.4 will give a slower ROF. If I were you, I'd get a 9.6. But, its all just preference. Either will work fine. Just get something with a lot of Miliamp Hours (mah).

[Azul]

Voltage does not necessarily equate to rof, i get over 30 rps with an 8.4V

Its relative to other factors in the power circuit but 8.4 will suffice for most people
The way in which your motor uses the power is consumes is dependent on the windings and the magnets inside it.
Certain Motors will not see gains in increasing the voltage as the current is the governing factor in their function.

And yes its a battery problem

As you drain your battery of energy its voltage depreciates

With a good battery the voltage will depreciate very little throughout the entire discharge cycle, meaning it will operate at its rated voltage until its dead

Lower quality batteries will drop below needed voltage well before they run out of juice as evidenced by this example.

[silence]

yes azul, you are correct. Motors/wiring/connectors/gears...etc can have an effect on ROF. I was just giving a generalized statement in that; most of the time with a voltage increase you will get a ROF increase. A 9.6 is supplying more juice than an 8.4. Its just depending if your gun is set up to be able to recieve most of this power at a given time.

Draeden, really with your gun, you should be fine with an 8.4 or 9.6. The spring in your gun is not extremely stiff, so an 8.4 will be able to pull it just fine. I do not believe that your battery has a problem meaning there is something wrong with it or its not how it should be. Its just a cheaply made "not so great" battery. You dont need a voltage change, you just need more mah in a quility brand battery.

[Azul]

yes azul, you are correct. Motors/wiring/connectors/gears...etc can have an effect on ROF. I was just giving a generalized statement in that; most of the time with a voltage increase you will get a ROF increase. A 9.6 is supplying more juice than an 8.4. Its just depending if your gun is set up to be able to recieve most of this power at a given time.

No that is incorrect

The windings in your motor are inductive and the mathematical determination for the draw induced is relationship which is dependent on the nature of the windings and the magnets in the motor. That differential equation is a bit above what is necessary to discuss.

Your gun will always have a specific draw of amperage depending on the Voltage of your battery. Once you supply the minimal amperage any excess is unecessary. The battery does not force amperage on its connected circuit, the circuit determines the draw. Higher voltages will induce higher current draws but that does not necessarily increase the rpm of the motor.

A 9.6V Battery will only supply more amperage if the cells that comprise the pack can accommodate this discharge rate. The larger the cells the pack is comprised of, the greater the discharge rate that is possible. Amperage and Voltage are separate concepts. If the circuit draws more current than the pack can safely discharge you are going to start to burn up your pack.


A high quality Elite 8.4V pack and some Deans connectors should give you enough ROF to have a perfectly playable AEG

[silence]

Azul, Im not trying to get all technical here. But, pretty much every airsofter knows that normally a voltage increase gives a ROF increase. I mean, you can look on almost EVERY airsoft store site/forum site and see this. Seriously, try a few different high quality batteries if you dont believe this.

I know that the other internal parts do have an effect on the ROF, but still 99% of the time a bigger voltage battery will increase ROF. I have three 8.4v batteries, a 9.6v, and an 11.1v. And the 8.4 is the slowest, 9.6 is faster, and 11.1 is fastest. I also have seen ROF increases because of bigger voltage batteries in other guns many times. So, that proves to me that normally voltage increases ROF (unless the battery is poor quality and has a low discharge rate).

[Mercy]

500 years ago we all knew the earth was flat too...

Science beats witch doctor's advice everytime

[silence]

....ok.    ha

[Myers]

He's not denying the point that "in general" a voltage increase means greater ROF. He's simply stating that voltage isn't everything. Increasing voltage is a sad excuse for continuing to use poorer quality batteries. The amount the battery can discharge means more than the voltage.
Myers out!

[silence]

yea Myers, I agree. Of course he should buy a high quality battery. There's no sense in replacing a poor quality battery with another poor quality battery.

[Draeden]

SO are there any specific brand batteries i should look for?
And can we please get away from these hate wars or else USAFCAJUN will terminate my thread

[Azul]

I always recommend Elite packs from cheapbatterypacks.com

Find their custom pack builder and these are the specs i would pick out personally

Nunchuck style 2/3A 1500mAh; 8.4v or 9.6v your call on that, at least 16AWG wire, and the appropriate connector

Get the Pack upgrade option, it makes a ton of difference

[silence]

Yea, I aggree with Azul. You are probably best of building a pack on the website that Azul posted. I have heard that it is a very good place to buy from, and its a good deal.

[Azul]

Indeed, among a few friends we have spent alot of money with them

[Draeden]

K that sounds good to me
Thx for all the info