Can you run 2 different batteries in parallel?
We would strongly discourage anyone from connecting batteries in series or parallel applications, if the batteries are not identical in age, size and type. Different brands of batteries can have different charging and discharging characteristics, with some accepting a charge or delivering current faster than others.
Why do you think most homes prefer parallel circuit?
Parallel circuits are used in homes because the loads can be operated independently of each other. That means that you can have an electrical item turned on and running without needing to have all of the other loads on and running as well.
How to connect different voltage batteries in parallel?
Connecting batteries of different voltages in parallel 1 primary (disposable) batteries – they are not designed to take a charge and so the lower voltage battery is likely to… 2 secondary (rechargeable) batteries – these only fair a little better. The lower voltage battery is not designed to… More
Is it good idea to connect two supply rails?
It is not a good idea to connect two different supply rails directly due to the problems that can be caused by low impedance sources opposing each other and circuitry of the lower rail may not rated to handle the voltage from the higher rail.
How are the rails in a PSU connected?
The rails in your PSU will share a common ground (like two batteries with their negative terminals connected together) If you try and connect them in series it will effectively short one of the rails to ground which is not good.
What is the voltage between 5V and 12V?
If you put the 5V and 12V in parallel, the voltage would be somewhere in between depending on the internal resistance of each source. If both sources have equal internal resistance then the resultant voltage would be 8.5V. This would apply for e.g. batteries or similar simple voltage source.