Bostitch 20V MAX Battery Adapters
Bostitch 20V MAX is the cordless nailer range: brad, finish and framing nailers on Bostitch's own battery. It is a separate system from the older Bostitch 18V tools, and the two do not fit each other.
A nailer often waits weeks between jobs, and a battery kept only for it sits unused. 2 adapters let it run from the battery you already use every day.
Pick a tool to run from your Bostitch 20V MAX battery
Bostitch 20V MAX questions
Is a Bostitch 20V MAX battery 20V or 18V?
Both — it is one battery described two ways. 20V is what it measures fresh off the charger with nothing drawing from it; 18V is what it settles at under load, and that is the figure most other brands print on the tool. So a 20V battery and an 18V tool are the same class of battery, which is exactly why an adapter between them works.
Will this fit my other Bostitch batteries?
Only Bostitch 20V MAX batteries. Bostitch also sells Bostitch 18V, and those use a different socket: same brand, different rail and terminals, so they need their own adapter. Compare the sliding rail on your battery against the photos before ordering.
How do I find the right adapter on this page?
Use the selector at the top: pick the platform on the other side of the pair and it takes you straight to the one adapter that joins them. Every combination in that list is one we actually make, so if it is there, it exists.
Can I use a Bostitch 20V MAX battery on another brand’s tool?
Not with an adapter from us. Bostitch 20V MAX works as the tool side only here — we make adapters that let other brands’ batteries run Bostitch 20V MAX tools, not the reverse.
Can I charge a Bostitch 20V MAX battery through the adapter?
No. The adapter carries current from the battery to the tool and does nothing else — there is no charging circuit inside it. Keep charging Bostitch 20V MAX batteries on their usual Bostitch charger.
Will an adapter damage my Bostitch 20V MAX battery or my tool?
Used with undamaged, compatible equipment it is not expected to. Bostitch 20V MAX batteries are lithium-ion with their own protection circuit built into the battery, and it keeps doing its job through the adapter. Stop when the tool noticeably slows rather than running the battery flat, and stop using the adapter if it becomes unusually hot or the contacts look damaged.
Does it work with third-party Bostitch batteries?
Usually. What matters is the socket, not the badge: if the battery slides onto a Bostitch 20V MAX tool and locks the way an original does, the adapter will take it. Aftermarket batteries do vary in moulding, so if yours looks unusual send us a photo and we will check before you order.