Webb22 maj 2011 · 1 Answer Sorted by: 2 Your best bet is to use a battery management IC. Searching Digikey for "Battery management" and then filtering by battery chemistry and then price, gave me the TSM101/A. For less than a dollar, it seems to be capable of what you want. Just replace the mains and rectifier portion of the circuit with a wall wart. WebbTogo Power Portable Power Station A650, 634Wh Rechargeable Mobile Lithium Battery Pack with Dual AC 120V/500W Outlets, Solar Generator CPAP Power Supply for Road …
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7.3: Voltage Source Circuits - Workforce LibreTexts
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