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/diy/ - Do It Yourself

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>> No.1663801 [View]
File: 2.75 MB, 2560x1440, 0808191925_Burst01.jpg [View same] [iqdb] [saucenao] [google]
1663801

Can someone help me diagnose this battery charger? The 7 segment display should light up when its receiving power and from there I should be able to press one of the two chink buttons to set how much voltage I'm charging the battery with.

When I touch the positive lead for my multimeter to the positive Input terminal on the charger, I get the exact same full voltage reading no matter where on the charger I touch the negative lead. I got the display to turn on once by shorting the relay but I don't want to destroy the whole thing by doing it again

>> No.1662513 [View]
File: 2.75 MB, 2560x1440, 0808191925_Burst01.jpg [View same] [iqdb] [saucenao] [google]
1662513

Can someone help me diagnose this battery charger? The 7 segment display should light up when its receiving power and from there I should be able to press one of the two chink buttons to set how much voltage I'm charging the battery with.

When I touch the positive lead for my multimeter to the positive terminal on the charger, I get the exact same full voltage reading no matter where on the charger I touch the negative lead. I got the display to turn on once by shorting it but I don't want to destroy the whole thing by doing it again

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