blapcb
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snafflekid said:A computer motherboard also uses +/- 5V and 3.3V supplies. The 12V is lightly utilized in today's computers. A UPS is the simplest solution.
Doesn't work with a few hundred millivolts. If the battery is intended to be charged (most likely), 13.7V with sealed batteries up to 14.4 with standard lead-acid cells are required. Discharge end voltage must be calculated with 10.5 up to 12 V, depending on the load current. So the voltage variation in standby operation is always in a several volts range.If the power supply can be a few hundred millivolts higher than the battery
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