How to integrate a rechargeable 12v battery?

I am building a portable boombox and trying to figure out how to integrate a 12v battery into it that can be recharged using a input jack and the AC adapter charger that came with the battery., without having to disconnect the load.   Is it as simple as connecting both the charger and the load to the battery?  Would I need to wire in a switch to disconnect the load when I plug in the charger?  I'm an electronics noob so any help would be appreciated.  Thanks.

Jayefuu4 years ago
The charging circuit and battery from a really cheap 12V cordless drill would be a good starting point for a beginner. Take it all apart and install it in your boombox. They can be found for as little as $20.