?
I'm not seeing that. The link shows 18V Li-Ion battery - it also requires new charger.
There's a dual ported charge stand that does all the 7.2V-18V batteries. https://www.amazon.com/dp/B000X1S11Q...4c8d3b0a76a60b
Should you move into any of the 20V tools, there's also a cobo dual port that does either. https://www.dewalt.com/products/acce...charger/dcb103
Hell, they now even have a 20V battery - 18V tool adapter. https://www.dewalt.com/products/acce...tools/dca2203c