This battery revived old DeWalt / ELU devices. If several cordless tools from ELU and the old 2AH NiCd batteries have slowly given up the ghost. If the new, by the way, super fit and are of (outwardly) good quality, keep only half as long, so we are sure happy.
The advantage of 3 Ah, I can not directly test unfortunately because the old batteries already quite at the end.