The method of repair of aviation nickel-cadmic batteries, which is oriented to the use in the conditions of exploitation organizations, is offered. It is assumed re-completion defective batteries in accordance with bits descriptions of accumulators present in a presence. The new criterion of possible acquisition, which lets to use accumulators with a capacity less minimum to the possible capacity of battery, is developed. It is suggested to choose the variants of acquisition depending on such tasks exploitations which are considered primary. The criteria of acquisition are developed for the decision of the following tasks: acquisition of one battery with minimum divergence of capacity of accumulators; acquisition of one battery with a maximal capacity; acquisition of side complete set of batteries with minimum divergence of capacity between batteries; acquisition of maximal amount of batteries. A method settles assured to get the batteries of calculation capacity.