Hi, I have these Omron BF511 scales which notoriously develop a battery drain problem. Normally they are supposed to last a year but suddenly they start draining a set of 4 AA batteries within a day.
I took it apart to see if it has suffered from water damage. And indeed it had. The water itself dries off but there is a metallic ceiling above the board which has dripped a rust water on it and I suspected was the culprit.
After few accidentally ripped and resoldered (with a nail heated on gas ring) wires and rust cleaned off, I am reluctant to test next set of batteries to see if they quickly die.
I just received analog ammeter I ordered on Aliexpress. My idea was to measure the resistance and see if disconnecting some elements would clear it but I am confused now.
It shows -20 with needles disconnected and somewhat around 0 when connected. Does it mean there is no resistance?
I have been solving the problem up until now by putting an insulator in between batteries as on photo.
I took it apart to see if it has suffered from water damage. And indeed it had. The water itself dries off but there is a metallic ceiling above the board which has dripped a rust water on it and I suspected was the culprit.
After few accidentally ripped and resoldered (with a nail heated on gas ring) wires and rust cleaned off, I am reluctant to test next set of batteries to see if they quickly die.
I just received analog ammeter I ordered on Aliexpress. My idea was to measure the resistance and see if disconnecting some elements would clear it but I am confused now.
It shows -20 with needles disconnected and somewhat around 0 when connected. Does it mean there is no resistance?
I have been solving the problem up until now by putting an insulator in between batteries as on photo.