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Small rectangular adapter with USB-C port and slim square tip, matte black finish

Blueskysea

Blueskysea USB C to Slim Tip Adapter 100W PD3.0

SKU CH-S398-1WAVC

Converts legacy slim-tip laptop chargers to USB-C PD 100 W for modern devices

  • TypeAC Adapters
  • Charge new USB-C laptops with existing ThinkPad Slim Tip chargers
  • 100W maximum output powers demanding devices like MacBook Pro
  • USB-IF certified with six protection circuits for safe charging
  • Automatically negotiates voltage from 5V up to 20V for fast charging
  • Extends life of legacy 65W and 90W power bricks

Universal USB-C charging adapter

This Blueskysea adapter converts a Lenovo Slim Tip charger into a USB-C Power Delivery source. It accepts 15-20.5 V DC input and delivers up to 100 W to compatible laptops, tablets and consoles. The unit is USB-IF certified and supports PD 3.0 for automatic voltage negotiation. It suits owners of legacy square-tip power bricks who want to charge modern USB-C gear.

Six-protection circuit and certified safety

The adapter includes automatic-recovery voltage protection, current protection, short-circuit protection, safe-charging management and radiation shielding. USB-IF, CE and RoHS certifications confirm compliance with industry safety standards. These circuits protect both the power source and the connected device during every charging session. No extra software or drivers are required for operation.

Check your Slim Tip charger rating first

The adapter passes through the connected charger's capability, so a 65 W or 90 W brick will limit output to that level. Verify your Lenovo Slim Tip supply delivers 15-20.5 V DC and sufficient wattage for the target device. Ensure the device you intend to charge accepts USB-C PD input within the 5 V, 9 V or 20 V profiles. The adapter itself adds no power beyond what the original charger provides.

Highlights

  • Charge new USB-C laptops with existing ThinkPad Slim Tip chargers
  • 100W maximum output powers demanding devices like MacBook Pro
  • USB-IF certified with six protection circuits for safe charging
  • Automatically negotiates voltage from 5V up to 20V for fast charging
  • Extends life of legacy 65W and 90W power bricks

Specifications

TypeAC Adapters

Questions about this item

Will the adapter itself wear out or need replacing after extended use?

The adapter has no moving parts and is built with six protection circuits including automatic recovery voltage protection, current protection, short circuit protection and radiation protection, so it does not require scheduled replacement.

What limits continuous full‑power delivery at 100 W?

The adapter accepts DC input from 15 V to 20.5 V; if the connected square‑tip charger cannot sustain the required voltage under load, the adapter will negotiate a lower PD profile such as 65 W or 45 W.

Does the adapter get hot or draw extra power when used all day?

It is USB‑IF, CE and RoHS certified with built‑in safe‑charging circuitry that regulates voltage and current automatically, minimising heat and preventing unnecessary power draw during prolonged operation.

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