Review on 65W 45W Laptop Charger for Lenovo IdeaPad 340 L340-15 L340-17 L340-15IWL Touch L340-17IWL - Power Supply Adapter Cord by Jacob Brooks
Positive polarity VS Negative polarity.
My laptop (130-15AST) has a charging port that requires "negative polarity". The power cord they sent me had "positive polarity". If I used this power cord with "positive" polarity without checking first, it would burn my power connector or fry something else! I'm glad I checked it out first and sent it back! Find out what polarity and wattage your device draws, make sure they match before plugging it in!
- Top marks for support and durability from testers
- The list will be long.
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