9V Rechargeable Batteries are a sustainable and economical option to power electronic devices. These batteries have an energy storage capacity of 9 volts y can be recharged using the included cable. This means that once the batteries are discharged, can be reused simply connecting them to the charger. This save money and reduce the number of disposable batteries in the environment. Furthermore, they are ideal for devices that require a large amount of powersuch as earpiece induction necklaces, guitar amps and electronic toys.