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Do Head Units Have Batteries These Days?

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Member - Posts: 6
Member spacespace
Joined: February 03, 2014
Location: Washington, United States
Posted: March 03, 2023 at 1:20 PM / IP Logged Link to Post Post Reply Quote electricduck
I just purchased a Kenwood DPX594BT to replace the factory head unit in a car. It's been over a decade since I did my last head unit install and am wondering if modern head units have a built-in lithium or whatever battery in them in order to maintain various settings and the station memory when a vehicle's battery is disconnected.
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Joined: June 26, 2004
Location: South Carolina, United States
Posted: March 09, 2023 at 10:43 PM / IP Logged Link to Post Post Reply Quote southsidesmoka
I have yet to come across a head unit that can retain memory and settings via a built-in battery when totally disconnected from the cconstant power source. I've been "in the industry" off and on since the 1990's. I can't say I've seen it all, but I've installed a few head units here and there. The closest thing I have seen is a settings restore feature on Sony Bluetooth-enabled headunits that restores the head unit's settings when connected to a smart phone with their Sony Music Center software installed.
Murphy and his damned Law keep me quite busy...

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