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Battery Backup Systems Or UPS - 2 Batteries - In Series Circuit - Bad?
Hello. I have a question about battery backup systems or UPS where now they have a sealed pack of 2 numbers of batteries as 1 battery.
I know that having a second battery will increase either voltage or capacity, depending on how they are wired. Hooked
up in series will increase the voltage, so if a battery is 12V, then your will have a 24V system or unit. Parallel wiring will increase the capacity and thus run-time.
Now, if the the 2 connected batteries ARE tied together as one unit, and the batteries ARE wired in a "SERIES" circuit, HOW CAN 24 volts ANYWAY improve run-time versus 12 volts? (BECAUSE THAT IS HOW I AM FINDING THEY ARE WIRED -- IN "SERIES"; IT DOESN'T MAKE ANY SENSE.) Can it provide ANY positive effect to run-time? Doesn't it REALLY NEED to be wired in PARALLEL in order to increase run-time?
Please reply.
Thank you!