Battery isolator needed?

[Bob345 39]

If I was to add second batterie to my system, would I need a batterie issolator or will I be fine without one.

[emh9009 199]

if you're driving daily then you should be fine. get a volt meter to watch the voltage. maybe two; one on each cell. stay save above 12 V at least.

[Kanaworm$ 292]

Unless you're sitting and playing your system for long stretches at a time no real need to isolate the starting battery from the stereo battery imo. As said above monitor the voltage with a voltage gauge.

[CrazyKenKid 64]

You would only need one if you plan to play car off for long stretches of time

[Julian 641]

Also if your rear battery is drained and your car is sitting for a long time. Most of us don't unless we have a huge bank of batteries and not the ability to charge them up.