3 ms·
I still don't quite understand it. Where does the battery get the energy? I understand that there's no difference in a circuit, but why is this comparison relev
by throwaway20304 3y ago
I still don't quite understand it. Where does the battery get the energy? I understand that there's no difference in a circuit, but why is this comparison relevant? Many power sources are way less efficient that using a battery, but we need to charge the battery.
- QuarterReptile 3y agoFor low-enough-power applications and sufficiently long-lasting batteries, charging is just another step in production.
- fsh 3y agoBetavotaic generators usually produce extremely low power. A similarly sized battery can last for decades at the same power output.
- regularfry 3y agoAlkaline batteries are never charged, per se. The energy comes from the one-way chemical breakdown of cathode and the anode.