Sigelei 150W TC Sky Blue: Complete Guide to Features and Performance

The Sigelei 150W TC is an older dual-battery temperature control box mod from Sigelei, and the sky blue version is one of its color options.

As its name says, it is a 150-watt mod with temperature control (TC) that runs on two 18650 batteries. We could not open an official Sigelei spec sheet for this model, so this guide leaves out the exact wattage range, temperature range and supported wire list rather than guess.

Because it is an older model, check whether a seller's stock is new or used before buying, and ask for the manual.

Key Takeaways

The Sigelei 150W TC sky blue is a dual 18650 box mod with up to 150 watts and temperature control
Confirm which coil wires its TC mode supports from the manual for your unit
Dual-battery mods need matched cells and careful battery handling

Sigelei 150W TC Sky Blue: Key Features and Technical Overview

The Sigelei 150W TC combines a 150-watt ceiling with temperature control and dual 18650 battery power. Body material, screen and battery door details vary by listing, so check them on the unit you buy.

Design and Build Quality

The sky blue finish sets it apart from the more common black and silver mods. Finishes on older devices can chip, so look at photos of the actual unit if buying used.

It uses a standard 510 connection that fits most tanks and atomizers. Make sure the center pin moves freely and the threads are clean.

Performance and Variable Wattage

The 150-watt limit covers a wide range of vaping experience styles. In practice, set the power to the range printed on your coil, not the mod's maximum.

The two 18650 batteries are not built in. Buy cells from a reputable source with a continuous discharge rating that suits the power you use.

Temperature Control Capabilities

Temperature control works only with coils made from wire whose resistance changes predictably with heat, such as nickel (Ni200), titanium or stainless steel. Which of these a given mod supports depends on its chip.

For comparison, Evolv's DNA 40 chip lists TC support for Ni200 nickel and a 200 to 600°F range. Check the Sigelei manual for this mod's own limits.

Never use nickel or titanium coils in plain wattage mode. Without TC, those wires can overheat.

Battery and Safety Features

Use the protections in your manual as a backup, not a substitute for safe battery habits.

Use two matched cells of the same brand, model, age and charge level, and charge them together. The FDA's battery tips warn against mixing brands, charge levels, or old and new batteries.

Replace any cell with a torn wrap, carry spares in a case, and charge where you can watch the device, never overnight.