Woot, an Amazon-owned discount store, has the Dewalt PowerStack 5Ah battery on sale for just $79.99.
There’s a limit of 2 batteries per customer.
As a reminder, the 20V Max PowerStack 5Ah battery has Li-ion pouch cells and is advertised as delivering more power, greater efficiency, and longer life than their cylindrical cell 5Ah battery.
The next-best price I could find right now is $196 ($98 each) for a 2-pack on Amazon. It’s $229 ($114.50 each) for a 2-pack at Home Depot and at other authorized dealers, or $199 and up each.
Amazon has the standard (older cylindrical-cell) 5Ah battery 2-pack for $129 right now. That’s a good price, too – other authorized dealers have it for $149 right now.
For the Dewalt DCBP520 pouch-cell PowerStack battery, $80 for 1 or $160 for 2 seems like a great deal.
Shipping is a flat $6 per order, or free for Amazon Prime members.
Woot advertises that the battery is covered by a “3-year Dewalt general warranty,” which implies they’re selling the batteries with full warranty coverage.
It’s not clear whether Woot is considered an authorized dealer, even though Amazon is.