Nah, those are ancient (source, I bought those around 2003).

The batteries for those are long worn out, and replacing them, even with newer lithium setups, will still cost a lot, and your runtime will still suck. Again, I say this as someone who still uses that saw with a giant Milwaukee lithium battery, and the runtime is still short, because motor designs have changed.

My same Milwaukee battery on a new Milwaukee saw will cut 4x as much lumber.

From the owners perspective, it's a better value to buy a new setup with batteries than to just buy batteries. I wouldn't give $50 for these old units, let alone $175, and I have adapters to use either new Dewalt or Milwaukee lithium with them.