Pulsar 510 Square

The Pulsar 510 Square takes the standard 510 battery format and rebuilds it with a square cross-section, which sounds like a minor change but affects how the device feels and functions in a few meaningful ways. The 500mAh capacity sits between the Scribe and Centro in the DL lineup. Conduction heating, ~3-second warmup, 510 threading, USB-C charging, one-year warranty — all standard DL specs. What the square form actually does: it doesn't roll off flat surfaces, which is a genuine quality-of-life improvement over cylindrical designs. The broader, flatter sides also give a more secure grip. The aesthetic is more angular and modern than most 510 batteries, which tend to look like medical devices or cheap pens. There's no technical advantage to the square shape beyond the grip and anti-roll properties, but those are real benefits that show up during daily use. The 500mAh battery is adequate for most users; it's not going to last a full day of heavy use, but it covers a reasonable number of draws before needing a charge. For users who want something functionally reliable but visually distinct from the sea of identical-looking 510 sticks, the Square makes a case for itself. It's the same Pulsar quality in a shape that actually stands out on a shelf or in a hand.