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KeepYourTools Hart 20V battery adapter snapped onto a HyperTough 20V battery pack
Fits HyperTough 20V packs you can still buy. See photos

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Hart 20V battery adapter

Keep your Hart tools working. TTI discontinued Hart, and new official 20V packs are getting scarce.

This adapter uses the original Hart pack PCB, so tools that talk to the battery still run. It fits HyperTough 20V packs, which you can still buy.

See it run

Hart 20V impact driver

Hart 20V impact driver running on a HyperTough 20V pack through the adapter. Click play. More tools on the demos page.

More demos →
Hart 20V impact driver running on a HyperTough 20V pack through the adapter.

Hart shut down

TTI discontinued Hart. New official packs stopped coming. If you already own the tools, battery supply is on you.

The adapter

We move the communication board from an old Hart pack into an adapter so a HyperTough 20V pack looks like Hart to the tool. Then you can keep buying packs that are actually available.

Old packs

Don't toss dead or spare Hart 20V packs. Send one complete pack back with the prepaid ground label. After we inspect, we PayPal $40 ($59 after return). Extra complete packs: $20 each after we inspect. Incomplete packs are not paid.

FAQ

What is a Hart 20V battery adapter?
It lets Hart 20V tools run from a non-Hart pack. Ours includes the original Hart pack PCB so tools that talk to the battery still run. Right now it fits HyperTough 20V.
Are Hart 20V batteries discontinued?
Yes. TTI discontinued Hart. Leftover 20V packs still turn up, then they don't. TTI is not making a replacement.
Why do some adapters only list 2-wire tools?
They only connect the two power pins. Some simple tools run that way. Many Hart 20V tools look for the pack's electronics and will not start. 2-wire vs PCB →
Will you take my old Hart packs?
Yes. Don't throw them away. $99 includes a $40 core. Send one complete pack back with the prepaid ground label and form. After we inspect, we PayPal $40 ($59 after core return). Extra complete packs are $20 each after we inspect. Dead cells are fine. Incomplete packs are not paid.