A:AnswerHello,
Allow us to please check the compatibility and validate if we have the tip available for you to use it with your Acer laptop.
Please contact us at this link below to help you with this.
- Arin A.
Insignia Support
Contact us: https://www.insigniaproducts.com/contact-us
A:AnswerHello, Tom,
When using the 12V setting, the amperage will be up to 1300 mA. The center pin is positive, this product has a positive polarity.
Eduardo L - Insignia Support
https://www.insigniaproducts.com/contact-us