Tuesday, 26 November 2019

What happens if an AC voltage is applied to a battery?


Today I was checking the voltage between charging terminals going to the battery of emergency lantern using a multimeter.


The multimeter showed a DC voltage of 9V and an AC voltage of 4V.


Could this AC voltage have damaged by old battery?


The DC voltage while being measured was not constant and the decimal part was changing in a cyclic pattern.


I only saw 3 diodes on the board. Is this a half-wave rectifier and is the multimeter mistakingly showing the ripple of half-wave as an AC voltage.



Please see the image of the circuit.


enter image description here




No comments:

Post a Comment

arduino - Can I use TI's cc2541 BLE as micro controller to perform operations/ processing instead of ATmega328P AU to save cost?

I am using arduino pro mini (which contains Atmega328p AU ) along with cc2541(HM-10) to process and transfer data over BLE to smartphone. I...