The Best Kayak Fish Finder Battery!
|12v 10,000mah Lithium Battery vs. 12v 4amp SLA Battery
Now before we get into talking about the differences between SLA and lithium batteries, a very common question is what battery do I need? What I say is to look at what that the amps per hour that particular unit draws. This is usually estimated at the highest power draw. This number can help give you an estimate of how many amps your battery needs to be. The most common size is usually a 12v 8-10amp battery. This seems to work well with both the smaller and bigger units. Now to the differences in battery type.
The most common battery in the kayak industry is the SLA battery. The one benefit of a SLA battery is that they are cheap! Great deals for these batteries can be found and your kayak can be wired up for under $50. With that does come some downfalls of SLA batteries. The first downfall is they are big and heavy. One 12v 10amp SLA battery can weigh up to 10lbs per battery. Throwing 3 of three of these into your kayak, depending on the kayak can hurt the carrying capacity of the yak and throw off how the boat is trimmed in the water. The second downfall is that SLA drastically lose power in cold weather. If you fish in cold weather plan on bringing several batteries or not using the electronics.
|12V 4amp SLA is large, bulky, and heavy
Positive: Lots of power for the money
Negatives: Heavy, not good in cold, short shelf life, and the voltage can drop below 12V
The new upcoming batteries in the marine industry is Lithium batteries. There are many different kinds that are up and coming such as Lithium Ion, Lithium Iron, and Lithium Phosphorous. Basically they are very similar just different formulas to generate power. The benefits to lithium batteries in kayaks are plenty. The first is that they are very small and lightweight. This crucial when weight is an issue on a kayak. Plus with their small size they can be stashed anywhere.
|12V 10,000mah is small, light, and powerful
|Only around 5 in x 3 in x 1 inch and less than a pound.
Positives: Light, small, all 12V, no cold weather battery loss, and longer shelf life.
Negatives: EXPENSIVE and must take precautions for battery safety
Now that was a lot! So I am gonna give you my recommendation on what I have been using! I personally use an external laptop battery charging pack that has a 12v output. I have had great success with these. I own two and one will power my Garmin Echomap Chirp 73sv for about 5-6 hours. I found it on amazon and it provides 12v with 10,000ma. here. As long as you can crimp marine connectors you can wire it up! Its super simple, but if you have any questions feel free to ask!
It cost me in total around $120 and has held up through all the abuse I have put it through. Additionally it has usb ports already wired into it for charging my phone and it has a built in draw cut off that keeps the battery from being overdrawn and shorting out. You can find it
The upfront cost of lithium batteries can be very daunting but if you can swing the fee, there are major rewards with it. Bioenno and Nocqua that are directly marketed at kayak fisherman. Also don't be afraid to rock a SLA battery if it fits your. They are dirt cheap they get you out on the water. I hope this helps answer any kayak electronic battery questions you might have. If you have any questions shoot a comment below or message me on facebook and I can help in anyway possible!
|Battery box, both batteries give me a combined 10-12 hours of power.
|12v output port for powering and 12v input for charging.
Thanks for reading along and Tight Lines,
Patrick "Pooti" Tharp