Recent content by tdougherty08

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    Laptop Power Supply: How to Charge Battery Externally

    Bob, Here's what I did. I hooked up (for power dissipation reasons) a brake light bulb 25w I had laying around and now I have a charging current of around 1.38A and the charging voltage is right where it needs to be 19.-- v . Thanks for the heads up. -Tad KI6ZAO Ham
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    Laptop Power Supply: How to Charge Battery Externally

    Thanks for the quick reply Bob, I'll give it shot this afternoon and if it works I will let you know. -Tad
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    Laptop Power Supply: How to Charge Battery Externally

    Greetings, Does anyone know how to use a laptop's charger to externally charge its battery? I am using a battery from an old DELL laptop to power my handheld radio. I wish to use the charger that came with the computer to rejuvenate the battery, however, the charger circuitry is smarter...
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