Originally Posted by m102404
Manufacturers use mini connectors on everything because they are cheap.
Put a big battery through an upgraded gun and you'll be beyond the capacity of the small connector. Causes heat. The way Tamiya plugs get loosened up over time, I've seen guns with melted plugs.
oddly, two of my AEG's (MP5/M4) have mini to large extensions in the full stock for use with a large battery.
I have since switched to deans on everything.