Hardware reference
Off Stamp Battery
The X Cube device runs a rechargeable lithium-ion battery sized to match its pod capacity — a 25K pod is paired with a battery good for 25,000 puffs across multiple charge cycles. Here's what to expect, and how long it lasts.
Battery specs at a glance
| Spec | X Cube 25K | Crystal 35K |
|---|---|---|
| Battery type | Lithium-ion, rechargeable | Lithium-ion, rechargeable |
| Rated capacity | ~25,000 puffs across charge cycles | ~35,000 puffs across charge cycles |
| Charge port | USB-C | USB-C |
| Full charge time | ~45 minutes from empty | ~45 minutes from empty |
| Required input | 1A+ USB-C phone-grade | 1A+ USB-C phone-grade |
How long does one charge last?
A real-world charge cycle on a 25K Cube device gives roughly 600–800 puffs before the LED starts blinking low. Total over the device lifetime: about 30–40 charge cycles before the battery's chemistry degrades enough to retain noticeably less per cycle. By the time the pod is consumed (~25K puffs), the battery's still healthy for many more pod cycles.
Indicator light meanings
- Solid LED while drawing — drawing successfully, battery at usable level.
- Solid LED while idle, USB connected — charging in progress.
- LED off while USB connected — fully charged.
- Blinking LED on draw — battery at ~10% or below. Plug in within a few draws.
- 3-blink burst on draw — short circuit or low-resistance fault. Try a different pod.
- 10-blink burst on connection — over-discharge protection triggered. Charge for at least 10 minutes before next draw.
Charging best practice
- Use the included USB-C cable or any 1A+ phone-grade replacement.
- Avoid leaving the device plugged in overnight indefinitely — top-off cycles add wear.
- Charge in a temperature range of 50–95°F (10–35°C) for best longevity.
- Do not modify the device or use third-party fast chargers above 2A.
Battery lifespan and what shortens it
Off Stamp batteries are designed to outlast the pod they ship with — meaning the bottleneck for device longevity is usually pod replacement, not battery degradation. Factors that shorten battery life:
- Storing in direct heat (a car dash in summer accelerates wear).
- Repeated full-deplete-to-full-charge cycles versus partial top-offs.
- Physical impact (drop damage can compromise internal cell integrity).
Recycling & disposal
The Off Stamp Cube device contains a lithium-ion cell that should not go into landfill — the EPA guidance on used lithium-ion batteries classifies them as hazardous waste. When you're done with the device, drop it at any battery-recycling stream (Best Buy, Home Depot, Lowe's, and most municipal hazardous-waste sites accept e-cigarette batteries). Empty pods can also be recycled with the same stream — they contain a small heating coil even when the e-liquid is consumed.
Related
- Off Stamp Charger — replacement USB-C cable info.
- Setup & instructions — how to use the device.
- Help & troubleshooting — common issues.
21+ only. Off Stamp products contain nicotine. Nicotine is an addictive chemical.