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They make AA size batteries that have a lithium battery inside along with built in voltage dropping, protection, and charge circuitry. They are cheap.
by mrguyorama 3y ago
They make AA size batteries that have a lithium battery inside along with built in voltage dropping, protection, and charge circuitry. They are cheap.
- edrxty 3y agoThose are rough because the buck regulator is ~80-90% efficient and takes up space that would otherwise be battery. Any advantage they have over the NiMH cells is marginal at best, but they at least theoretically have a better discharge curve for stuff that's very voltage sensitive.