BATTERY PACK

摘要

PROBLEM TO BE SOLVED: To prevent a difference between charged states by reducing the temperature difference between battery modules connected in parallel. SOLUTION: This battery pack is provided with at least a pair of battery modules 3 and 4 each connected with a plurality of cells 2 in series. A pair of battery modules 3 and 4 connected in parallel are arranged near to each other so that the radiation heat of the battery modules 3 and 4 can be moved.