A USB charger with a male 510 threaded connection.
It is corded and provides 4.2V 420mA output. It is ideal for the larger Ego/Evod batteries we sell but do not use it with small 510 automatic batteries as it will provide too much current, potentially damaging them.
It requires a 5V DC input. This is the standard output of USB ports on PCs. If using a mains-USB adaptor, please check that the output on the adaptor matches this requirement.