Hello All,
I have a small reed switch alarm unit which takes 3 LR44 batteries, but these batteries deplete very quickly, so I was wondering how I can find out if it will take normal batteries such as AAA or AA or PP3. I think the LR44 batteries are 1.5V each so I think 3 X AAA may work but I do not want to blow the unit and also if possible I would like to use the unit with 2 X AAA or 2 X AA or 1 X PP3 to save space.
Do I need to use a bench power supply to work this out? And if so I will need to buy one so are there any that anyone could recommend?
Thank you.
I have a small reed switch alarm unit which takes 3 LR44 batteries, but these batteries deplete very quickly, so I was wondering how I can find out if it will take normal batteries such as AAA or AA or PP3. I think the LR44 batteries are 1.5V each so I think 3 X AAA may work but I do not want to blow the unit and also if possible I would like to use the unit with 2 X AAA or 2 X AA or 1 X PP3 to save space.
Do I need to use a bench power supply to work this out? And if so I will need to buy one so are there any that anyone could recommend?
Thank you.