I say almost identical. I've just noticed it's got 3 pins not 2. Reichelt actually has the 3 pin in stock. If you have anything else a bit old it might be worth checking. Actually these batteries are notoriously an old synth destroyer. Cheetah ms6 (an oberheim matrix 6 clone) and the teisco/kawai  sx240 (analog DCO poly) are often found with corroded boards as these batteries have leaked.