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    Making a 3s parallel pack

    Hi Guys, I'm planning to make my first 18650 battery pack for a portable raspberry pi, and have been doing some research. So far here's my progress: Power calculations of setup: Raspberry Pi 4 Voltage range: 4.7V - 5.25V Peak: 3A @ 5V = 15W Typical: 0.6A @ 5V = 3W Speaker amp board Voltage...
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