How to running the laptop with 12v battery / 3 wires Charger?

How to running the laptop with 12v battery / 3 wires charger?
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[@motorstunter]

Thanks very helpful! It worked for me. My signal wire gave 2.7 volts so I used a 2.2 zener and a shottky diode in series to get the correct voltage. With a 6.8k resistor. Just stuff I had lying around..

[@gracc46]

excellent job so simple but effective.Thanks.

[@ethanbecker5679]

THANKS BUDDY!

[@shepherdnleya7828]

Thanks for the info

[@munrodutoit]

Nice, but how do you build the boost converter?

[@MousaSimpleProjects]

I didn't. i bought it from Aliexpress.
www.aliexpress.com/item/1005002895150655.html?spm=a2g0o.productlist.main.9.74beKLxrKLxrUi&algo_pvid=b27e7649-07a7-4ba1-ab37-1f4c712ab20e&aem_p4p_detail=20230903001441127161944184240011652948&algo_exp_id=b27e7649-07a7-4ba1-ab37-1f4c712ab20e-4&pdp_npi=4%40dis%21USD%211.70%211.58%21%21%211.70%21%21%402103135816937252814336648ee8f8%2112000022663394821%21sea%21IQ%210%21A&curPageLogUid=tuE1VWJ1ZZ8m&search_p4p_id=20230903001441127161944184240011652948_5

[@electroumit]

Thank you for this useful video.

[@21flguy]

good video thanks for the upload

[@maheshbuvally]

Do we need all 3 wire?

[@MousaSimpleProjects]

Yes, if you ignore the smart pin wire, The laptop not working

[@wandae6352]

Any problems in now with the laptop?

[@MousaSimpleProjects]

No problem, still working well.

[@Xiaoxiaoxiaomao]

👍🏻

[@familysoe1234]

4.7k for smart pin?