Electric battery comprising an electronic management device configured to: a) measure and store a battery use profile; and b) calculate a value representative of the future state of health of the battery taking into account said use profile measured in step a), based on a predefined battery aging model, characterised in that the aging model comprises, stored in a memory circuit of the electronic management device, a first predefined aging table modelling the calendar aging of the battery and a second predefined aging table modelling the aging by cycling of the battery, wherein the first aging table is a three-dimensional table containing, for each combination of a state of health value, of a state of charge value, and of a temperature value among: - a plurality of predefined state of health values; - a plurality of predefined state of charge values; and - a plurality of predefined temperature values, a value representative of the loss of battery capacity during a predefined time interval, wherein the second aging table is a four-dimensional table containing, for each combination of a state of health value, of a state of charge value, of a temperature value, and of a value of a biasing current of the battery among: - a plurality of predefined state of health values; - a plurality of predefined state of charge values; - a plurality of predefined temperature values; and - a plurality of predefined values of biasing current of the battery, a value representative of the loss of battery capacity during a predefined time interval, and wherein the electronic management device is configured to, in step b), estimate, from the model and according to the use profile measured in step a), a future loss of battery capacity, and deducing therefrom said value representative of the future state of health of the battery. a) measure and store a battery use profile; and b) calculate a value representative of the future state of health of the battery taking into account said use profile measured in step a), based on a predefined battery aging model, characterised in that the aging model comprises, stored in a memory circuit of the electronic management device, a first predefined aging table modelling the calendar aging of the battery and a second predefined aging table modelling the aging by cycling of the battery, wherein the first aging table is a three-dimensional table containing, for each combination of a state of health value, of a state of charge value, and of a temperature value among: - a plurality of predefined state of health values; - a plurality of predefined state of charge values; and - a plurality of predefined temperature values, a value representative of the loss of battery capacity during a predefined time interval, wherein the second aging table is a four-dimensional table containing, for each combination of a state of health value, of a state of charge value, of a temperature value, and of a value of a biasing current of the battery among: - a plurality of predefined state of health values; - a plurality of predefined state of charge values; - a plurality of predefined temperature values; and - a plurality of predefined values of biasing current of the battery, a value representative of the loss of battery capacity during a predefined time interval, and wherein the electronic management device is configured to, in step b), estimate, from the model and according to the use profile measured in step a), a future loss of battery capacity, and deducing therefrom said value representative of the future state of health of the battery. characterised in that the aging model comprises, stored in a memory circuit of the electronic management device, a first predefined aging table modelling the calendar aging of the battery and a second predefined aging table modelling the aging by cycling of the battery, wherein the first aging table is a three-dimensional table containing, for each combination of a state of health value, of a state of charge value, and of a temperature value among: - a plurality of predefined state of health values; - a plurality of predefined state of charge values; and - a plurality of predefined temperature values, a value representative of the loss of battery capacity during a predefined time interval, - a plurality of predefined state of health values; - a plurality of predefined state of charge values; and - a plurality of predefined temperature values, a value representative of the loss of battery capacity during a predefined time interval, wherein the second aging table is a four-dimensional table containing, for each combination of a state of health value, of a state of charge value, of a temperature value, and of a value of a biasing current of the battery among: - a plurality of predefined state of health values; - a plurality of predefined state of charge values; - a plurality of predefined temperature values; and - a plurality of predefined values of biasing current of the battery, - a plurality of predefined state of health values; - a plurality of predefined state of charge values; - a plurality of predefined temperature values; and - a plurality of predefined values of biasing current of the battery, a value representative of the loss of battery capacity during a predefined time interval, and wherein the electronic management device is configured to, in step b), estimate, from the model and according to the use profile measured in step a), a future loss of battery capacity, and deducing therefrom said value representative of the future state of health of the battery.