9v battery snap is attached with DC male jack connector and makes a most convenient way to give 9V DC power to any board and device. 9v battery is one of the cheapest and most convenient ways to give supply, attached DC jack makes it more useful to connect directly from 9v battery to Arduino or other Boards and device.
Buy battery connector + DC male power jack from RoboElements at best price and high-quality material.
1M 10 Wire Flat FRC Ribbon Cable – 28 AWG
3S 11.1V 1200mAh 18650 Lithium-Ion Battery Pack with BMS Protection
1 Cell Li-Ion 18650 battery Holder – PCB Mount
ESP8266 D1 Wifi Development Board – Arduino Compatible
FT232RL USB to UART TTL Serial Adapter Module for Arduino
TPA3110 2x15W Stereo Digital Audio Amplifier Module
1-Channel 12V Relay Switch Module
Reprap Ramps 1.4 2004 LCD Smart Controller
5 Pcs 5mm Blue LED Light Emitting Diode
5mm 4 Pin RGB Common Anode CA LED
5M Nickel Strip 3mm x 0.12mm for Battery Connection
74HC04 7404 SMD Hex Inverter IC
4 Cell AA Battery Holder Box with Male DC Jack
4-Channel 5V Relay Module for Arduino with Optocoupler
3S 5A BMS Li-Ion Battery Protection Board
3S 20A 12.6V Li-Ion Battery Charger Module BMS Protection PCB Board
7 Segment LED Display – Common Anode
433MHz Wireless RF Tx Rx Transmitter Receiver Module Green
4S 20A Li-Ion Battery Charger Module BMS Protection PCB Board
3V to 5V Bluetooth Audio Receiver Module for Amplifiers
8×8 Dot LED Matrix Display LED Display Module
5.5mm DC Power jack Female Power Breakout Module 




