Here you see the old battery alongside a new replacement.
The new battery is smaller in size due to its lower capacity (80 mAh) but is a suitable, 3.6V
rechargeable supply. The capacity isn't
so important in this trickle-charge, very low current application.
The new battery has a nickel metal-hydride chemistry instead of the toxic and now
restricted nickel cadmium chemistry used by the original.
However, a higher capacity (150 mAh) NiMH battery for the Korg Poly-61 and Korg Polysix is
now available on our