🔋💻 Lenovo Slim-Tip 65W Laptop Charger
 
(20V 3.25A AC Adapter • 65W • Rectangular Yellow Slim-Tip w/Center Pin)

This compact AC adapter delivers 65W of regulated DC power to Lenovo laptops using the slim-tip connector. It’s widely deployed across ThinkPad, IdeaPad, Yoga, and Flex families, offering a balance of portability and reliability for everyday computing.
 
🔧 Charger Form
Input: 100–240V AC, 50/60Hz
Output: 20V DC, 3.25A (65W)
Connector: Rectangular yellow slim-tip with center pin
Inline power brick with detachable AC cord
Smart chip communicates wattage to laptop firmware
 
🖥️ Compatible Devices
🧳 ThinkPad Series: T440, T450, T460, T470, T480 (65W configs); X240–X270; L440–L470; E440–E470; ThinkPad Yoga 11e/12/14 (slim-tip models)
📘 IdeaPad Series: 100, 110, 310, 320, 330, 330s; 500, 510, 520, 530s; 710s; S145
🔄 Yoga Consumer Series: Yoga 2 Pro, Yoga 3 (11/14), Yoga 710, Yoga 720 (non-USB-C variants)
🖥️ Flex Series: Flex 4, Flex 5, Flex 6 (slim-tip versions)
🧠 Other Lines: Lenovo Edge (E431, E531), select Lenovo Chromebooks with slim-tip input
 
✅ Common Uses
🔌 Powering Lenovo laptops in home, office, or classroom setups
🧩 Replacing lost or damaged OEM chargers
🏢 Standardizing spares in IT departments and student fleets
🎒 Keeping as a lightweight travel adapter
🧪 Testing slim-tip Lenovo laptops with a known-good 65W supply
 
🧠 Signal Format
⚡ Input: Universal AC (100–240V)
🔋 Output: Regulated 20V DC, 65W max
🔑 Center pin ensures proper wattage recognition and safe charging
🔌 Supports both charging and direct power operation
🔁 Backward compatible with some 45W laptops (safe, charges faster)
 
⚠️ Things to Watch Out For
📉 Using on laptops requiring 90W+ may cause performance throttling or slow charging
🔌 Connector must match — not interchangeable with Lenovo’s older round-barrel or newer USB-C
🧯 Avoid third-party clones without smart chip — laptop may reject them
🌀 Excess heat or frayed cables can cause intermittent charging
🧪 Always match adapter wattage and connector type to laptop specs
 
🛠️ Quick Tips for Beginners
🧭 Check underside of laptop or original charger for voltage and connector type
🔌 Use only with laptops rated for 65W and slim-tip input
🧪 If laptop reports “adapter not recognized,” inspect center pin and cable integrity
🧯 Label adapters clearly to avoid mix-ups in multi-device environments
🧵 Keep one at desk and one in travel bag for convenience