Pin/Tamiya plug connector – Have lighter contacts with lower amperage rating.There are two main battery connections that are used depending on your gun’s model. In electric Airsoft guns such as the Firepower F4-D AEG, the connections essentially begin at the battery, located on the butt stock or at the front grip, depending on your model.

Source: By Shaddack (Own work), via Wikimedia Commons

Nonetheless, after they trip for the first time, they easily trip again unless you give them enough cooling time. After the circuit is broken and current is no longer flowing, they cool and contract to a point where they can conduct current once again.

Resettable/Polyfuses: when heated, these types expand gradually to such a point that they can’t conduct electricity any more.

Source: havarhen, Electrical fuses, plug-in type, different sizes, CC BY-SA 3.0 In case they trip, you just replace it by popping another one in.

Plastic or glass automotive fuse : you will find them in the majority of stock AEGs out there.

However, if you use them or you are a little concerned about your setup, here are two great options for you. In case you upgraded your gun for a higher FPS with high torque motors, you may have had to take the fuses out for ideal operation. In case your motor fails when you fire the trigger, the first diagnostic step is checking your battery and fuse connection. In general, Airsoft factories use 15 amp fuses in order to protect the circuit of the motor. When you get to the electrical circuit of an AEG, you are going to find some sort of fuse link and a fuse holder.

The AEG wiring that completes the circuit.

Standard trigger contact shuttle and the complete contact system.

However, today, what I’ll be addressing is the general wiring of an Airsoft AEG and the associated components. Currently, some models come packed with beautifully intricate electronic Mosfets and triggers.

Airsoft gun wiring plays a very important role in the optimal functionality of all automatic AEGs.

How to fix a misfiring airsoft gun