STORAGE BATTERY APPARATUS

According to one embodiment, a storage battery apparatus including a wireless module transmitting and receiving a radio wave having a polarization plane in any one of first to third directions orthogonal to one another; and a battery management unit including a first wireless module transmitting and receiving a radio wave having the polarization plane in the first direction, and a second wireless module transmitting and receiving a radio wave having the polarization plane in the second direction, wherein the polarization plane in the first direction is less likely to have reception power of lowest receiving sensitivity than the polarization planes in other directions, and a number of the first wireless modules is larger than a number of the second wireless modules.