Your ChalkBlaster spends most of its life in a chalk bag, a backpack, or the pocket of a crash pad. Chalk gets everywhere. Grit gets everywhere. So where we put the charging port is not a small detail. On V1, we learned that the hard way.
Where V1 went wrong (and why you probably never noticed)
ChalkBlaster V1 charges from the bottom of the handle. On the screen, it looked logical. Plug it in, stand it up, done. In the real world, that port sat at the one end of the brush that gets set down on rock, dropped on gym mats, and buried in the bottom of the bag where all the chalk dust settles.
We covered it with a rubber plug. The plug did its job. It also fell out, filled with chalk, and looked like an afterthought on a tool we wanted to feel finished. If you own a V1 and your plug is somewhere in a Fontainebleau parking lot right now, we know. We've lost a few ourselves.
Why ChalkBlaster V2 charges from the top
V2 moves the USB-C port to the top of the handle, right where the brush head clicks on. The first reaction from almost everyone we showed it to was the same: that's weird. Then they picked it up.
Think about how you actually use the brush. The head is attached roughly 80% of the time. Climbing, brushing, carrying it around, tossing it in the bag. All of that happens with the head on. And with the head on, the port is sealed off by the head itself. No plug to lose. No open hole pointing at the ground.
When the battery runs low, you pull the head, plug in, and the handle charges on your desk with nothing touching the bristles. The one time the port is exposed is the one time it's in your hand.
The part you can't see: a shorter circuit board
Here's the real reason the top port works. It isn't about protection alone. Moving the port let us shorten the internal PCB. A shorter board means a shorter, more compact handle and less dead length between the motor and your hand. That matters on a tool where every millimeter of the air path is fought over.
We didn't pick the port location first and then squeeze the electronics around it. We let the internal architecture of ChalkBlaster V2 decide where the port should go. The port placement that looked strange from the outside was the only one that made sense from the inside.
Exposed every time you set it down
Rubber plug required
Looked like an add-on
Longer circuit board
Covered by the brush head
No plug at all
Clean, minimal end cap
Shorter PCB, more compact handle
What this means on the wall
One less thing to lose. One less place for chalk to collect. A ChalkBlaster that you can throw in the bag after a session without thinking about which end is up. The charging port is the weak point on any electric tool that lives next to chalk, and hiding it under the one part you always have attached is the simplest protection we found.
You also get a tighter, more compact V2 in the hand, which is the whole point of the I-shape design we're building toward. Small decision, big difference in how the brush feels when you reach for it between attempts.
Paul, on the redesign: "The obvious port placement wasn't the right one. The right one works with the internal architecture, not against it. If you're serious about hardware, you can't skip the hard parts."
Quick answers
Can I charge ChalkBlaster V2 with the brush head on?
No. The port sits under the head, so you pull the head off to charge. It takes a second, and it's the reason the port stays clean the rest of the time.
Do I still need a rubber plug?
No. The brush head covers the port on V2. There is no plug to lose.
Why not put the port on the side of the handle?
Because the top placement is what let us shorten the circuit board. A side port would have cost us length and compactness, and compactness is one of the four things ChalkBlaster V2 refuses to compromise on.
SWEEP Climbing builds tools for climbers who take friction seriously.
