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Originally Posted by ccacher1
I searched around on the forum and found many of the answers to my questions but still have a couple more about rigging up my fish finder and live well pump. I have a SLA 12v 9ah battery and am hoping to use just this battery to power both a Lowrance Elite-4x FF as well as a tsunami 500gph pump. The reason for me wanting to use one battery is because I have a smaller kayak and can't have the added weight if possible. The questions I have are...
1.) Is anyone else running a single battery this size or smaller for both?
No, and I wouldn't recommend it.
2.) Can you just use an adjustable aerator head on the live well pump to decrease the water flow from a 12v battery or would I actually need to run a timer switch?
I don't know of any internal way of switching it but if you run a 6volt battery you will be reducing the gph. If you plan on running one battery for both things I would definitely get a timer but I wouldn't recommend one battery for both units.
3.) If I do use a timer switch for the live well pump would this drastically increase my battery life?
Yes, but again, you still run the risk of draining your battery.
4.) If a 12v 9ah battery simply isn't enough to run both for 6ish hours even with a timer switch, would a 12v 10ah battery be enough?
Its all a matter of $$$. If you plan on fishing a lot don't be cheap, get yourself something that will last like the LiFePO4 for your sonar/gps, at about $175 its not cheap but its definitely worth the money.
For your bait tank get a 6v/12a, this will last way more than 6hrs, just don't run it dry or you'll kill it. Last year during the Islander Mothership trip I ran my 6v/12a bait tank battery from 6am until 8pm, its was still fairly new but that will give you an idea as to how long they usually run.
Thanks in advance for any tips/advice.
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If you plan on fishing at least 2-3 times a month don't be cheap with these types of things, get something that will last the day and will still be working months from now.