Relay and battery

The utility model discloses a relay and a battery. The relay comprises a shell, a connecting terminal and a resistor module. The shell is provided with a containing cavity, the connecting terminal comprises a first connecting end and a second connecting end, the first connecting end is used for being connected with a battery, and the second connecting end is used for being connected with electric equipment. The resistor module is arranged in the accommodating cavity, and the resistor module is connected between the first connecting end and the second connecting end. The shell is arranged in the relay to protect internal elements of the relay, so that the operation stability and safety of the internal elements of the relay are improved. And the connection terminal is arranged, so that the relay can be conveniently connected with other equipment. Wherein the resistor module is also arranged in the shell, the resistance value of the relay can be increased, the pre-charging current can be buffered, and compared with the mode that the resistor is arranged outside the relay, the relay integrates the resistor in the shell, so that the integration level and the installation efficiency of the relay are improved, and the occupied space is reduced.