Was searching for some Flexvolt batteries and found this, cheaper than other stores around. They also have a few tools on clearance as well.
I was able to price beat at Bunnings with no fuss which dropped it down to $388ish which I thought was a steal given that the batteries are around $150-$160, and the double charger is super helpful.
Might go well with some of the DeWalt deals that have been floating around recently. Just remember, the Flexvolt batteries are heavier than the usual ones. They are roughly 1kg !
1kg for a 6ah battery! that is a heavy Battery..