how much can u hook up to one battery

[russ010]

on one battery, I've got the radio, color fishfinder, Livewell pump, livewell aerator, 10 LEDs...

Really depends on what size battery you have. This is an Autozone 24 series Deep Cycle and it runs the radio and fishfinder all day long with no problem. I've got the aerator on a timer, so it's on 1 minute and off 3-6 minutes.

 

[Rat]

Batteries are arr rated in Amp Hours. So it depends on how many Amps you will be pulling as to how long it will last. Let's assume you have a 100 Amp Hour (AH) battery and you will be pulling 50 Amps, say 40 Amps for TM and 10 Amps other stuff. Divide the battery AH (100) by the full load Amps (50) and you get how many hours you can run until the battery is dead. In this case, 100/50=2 hours of run time at full load; if you only ran 25 Amps you would have 4 hours of run time, etc. Most batteries will have a scale for lower amps that you can find online that shows how running lower amps gets longer life, but it's usually pretty close. Reserve capacity and a few other things (like temperature) will also have an impact; but that's it in a nutshell. You can see one here:

Battery and chart