ALAMSCN 4PCS 4 AA Battery Holder with USB Socket 4 x 1.5V AA Battery Case Box ON/Off Switch with Cover for Electronic Experiment DIY PCB Circuit Projects (3AA+USB)
£7.58
Battery Model: AA; Number of Bbatteries: 4; Output Voltage: 4.8V-6V. Suitable for 1.5V AA and 1.2V AA batteries.