An alternative method of battery connection to the established deans style connectors. The core of these are 3.5mm gold encased in a plastic moulding. 

Solid Bullet Connectors
Low resistance for high current capacity
Ergonomically designed and easy to grip
Protected to avoid shorting and reverse polarity
Superior technology suited to today’s high power applications
Designed with convenience and reliability in mind
Easy to un-solder and reuse

Sold in packs of 3pairs