Answer first
A rechargeable disposable cannabis vape has a sealed oil tank and a built-in lithium-ion battery. The device adds a charging port, in most cases USB-C, so the battery can be topped up. The port does not refill the tank. When the oil runs out, the unit is discarded.
That design solves one problem: batteries that die before the oil does. A 0.5 mL to 2 mL tank can outlast a 200 mAh to 500 mAh cell. A dead battery once meant wasted oil.
Parts of the device
- Battery: lithium-ion, 200 mAh to 500 mAh in most disposables.
- Charging port: USB-C on current stock, micro-USB on older units.
- Cartridge: glass or plastic tank with a ceramic or cotton wick and a metal coil.
- Airflow channel and mouthpiece, sealed at the factory.
- Draw sensor or fire button. Most disposables fire on draw.
How to charge
- Use the cable in the box, or a standard 5V USB wall block.
- Match the input to 5V at 0.5A to 1A. Chargers rated above 5V can damage the cell.
- Watch the LED. Most units glow or blink during charging and stop when full.
- Unplug when the light stops. A 350 mAh cell reaches full charge in about 30 to 60 minutes.
- Let the body cool before vaping. Some units fire while plugged in. Most do not.
Puff count claims
Package numbers run from 300 to 3,000 puffs. No regulator verifies those figures. Draw length, heat setting, and oil thickness change the total. Treat the number as a rough estimate.
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CBD and THC rules in the US
Federal law sets the hemp line at 0.3% THC by dry weight. Hemp-derived CBD under that line can ship across state lines. THC vapes are legal at the state level, and states differ on possession, purchase, and flavor rules. The FDA has not approved CBD as a vape ingredient or as a dietary supplement. Check your state before you buy.
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What to check on the label
- Third-party lab results with a batch number that matches the package.
- Cannabinoid content in milligrams, not just a percentage.
- Test panel for pesticides, heavy metals, residual solvents, and microbials.
- Battery capacity and port type.
- A manufacture or expiration date.
Safety limits
Lithium-ion cells can overheat if the casing is dented or the wrong charger is used. Do not leave a device on a charger overnight. Do not use a device with a swollen or cracked body. Vitamin E acetate in unregulated THC cartridges caused lung injuries in 2019 and 2020, per CDC. Buy from a licensed seller with lab paperwork. This is general information, not medical advice.