No, The battery size determines the Rate of Fire or how fast it shoots. The fps is determined by the spring.
we can increase the current in battery by using current amplifiers or chopper's s the easy way to increase the current in battery........
No it does not. The fps is controlled solely by the spring. Batteries are mainly small types and small types are either 8.4v or 9.4v the difference is the higher the voltage the better the fire rate.
To increase voltage output when using more then one battery connect the batteries in series.
To make the BB's go faster, all you need to do is lower the weight of the BB. The lowest weight of a BB is 12grams. If you already shoot with that then you probably just have a cheap gun. Email me at vino12@aim.com if you have anymore questions about airsoft or real guns and their ammunitions. He is right about the BB's another way you can increase speed is with a bigger and stronger battery. I highly recomend using Amazon there batterys work fantastic and are cheep as DIRT. To go along with both of those answers-If you have a bolt action or spring airsoft gun, a spring upgrade from online sites like evike.com or airsoftmegastore.com can increase the speed greatly. Tight bore barrels can also increase your fps by about 15%. They also make it much more acurate
You will increase the amp load on the battery.
No. There is not possible way for them to wear out. There is a myth that if your battery is still plugged in that the battery drains it charge. It's nothing serious (just recharge the battery) and I don't know if it's true, but I would unplug your battery when your done using it.
Yes, and it is highly recommended to wear airsoft glasses or a paintball mask whilst using airsoft equipment.
If the 2nd battery is connected "in series" with the 1st battery, the voltage will increase & the motor will run faster. If the 2nd battery is connected "in parallel" with the 1st battery, the voltage will not change, but the total battery capacity will be greater & therefore battery life will be longer than when using just 1 battery.
Series.
This depends on the type of battery and the charger. Smart chargers are the easiest, as they tell you when it is done. If you don't have one, look at the instructions to see how long, or look at an online chart using your mAh and battery cells.
just get a inverter that will increase the voltage by quite a lot well the current anyway.
One thing that can make a big difference is reducing screen brightness.