tools that use DeWalt's 20V batteries

an overview of DeWalt's battery systems

• some tools accept their 60V MAX batteries [list of tools]
• batteries labeled Flexvolt can be used with tools that accept either 20V and 60V batteries [introduced 2016]
• tools labeled Flexvolt Advantage can accept 20V Max batteries, but when used with Flexvolt batteries, will provide more power than with standard 20V Max batteries [maybe introduced 2020?] [list of tools]
• batteries labeled Powerstack work with all 20V-compatible tools; advantages include 50% more capacity, double the lifespan, and they're lighter [introduced ~Oct 2021] [what is a pouch-cell battery?]
• [complete list of tools] [complete list of 20V tools]

all third-party tools compatible with DeWalt batteries

• Klein tools — cable cutters and crimpers
• Graco — hand-held paint sprayers [amazon]
• WaxPar — work lights and fans
• Ecarke work light
• Livowalny — work lights
• (long list of others)

all battery adapters

• DeWalt sells an official 18V to 20V adapter that allows you to use 20V MAX* batteries in 18V tools. [list of 18V tools]

The rest of these are third-party adapters:

• third-party versions of the official 18V-to-20V adapter [1] [2]
• adapter that lets you use Black and Decker 20V tools with DeWalt's 20V batteries [list of tools]
• adapter that lets you use Craftsman 20V tools with DeWalt 20V batteries [list of tools]
• adapter that lets you use Ryobi 18v One+ tools with DeWalt 20V batteries [list of tools]
• adapter that lets you use Dyson V6 vacuums with DeWalt 20V batteries

all third-party batteries or chargers

There are endless numbers of these, but a few that stand out to me:

• Tenmoer's 9.0Ah battery

specific DeWalt tools that I might be interested in

• DeWalt barrel-grip jigsaw
• DeWalt router
  • Things I would use this for — The Matchfit groove router bit. T-slot router bits can cut a slot into raw wood that functions similarly to T-track.
• DeWalt 4½" circular saw
• DeWalt planer
• DeWalt orbital sander
• TODO — figure out which drill (+ impact driver?) I might be interested in
  • Amazon searches — [drill], [hammer drill]
  • A hammer drill is best suited for driving bolts into concrete, brick, and masonry. An impact driver is best suited to driving long screws and fasteners into wood, but has no variable speeds, and so isn't suitable for general-purpose drilling.
• DeWalt heat gun

Other stuff I might eventually be interested in:

• several hand-held vacuums
• vehicle battery booster
• DeWalt sells several different lights

specific third-party tools I might be interested in

• a variety of inverters [1] [2] [3] [4]