Minimum Starting Voltage Switch

electrical-wiring
batteries

#1

Looking for something that can monitor the battery and turn off power to auxillary devices (electronic devices plugged into a cigarette lighter adapter) when the battery runs down to the minimum voltage required for starting.


#2

My first instinct tells me to send you to the RV world for this device. They deal with all those battery devices.


#3

Thanks for the suggestion. I called car and RV places who both thought I was crazy… I may be. Found the answer: It’s called a priority start, works with 1 battery and normally used by LE, Fleet and Heavy Equipment. Thank you!


#4

There are lots of battery low voltage disconnect circuits to be found on the web. I have never looked for a plug-in device.

Don’t some inverters for automotive use incorporate these?


#5

Small electronic devices like iPods or CD-players use practically no power and can be used for days without running the battery down. Anything that really drains it will require an inverter to run which, as B&B mentioned, usually have a low-voltage alarm.