[insert]

I have practically the same boat you do and my boat ran noticeably faster (not to mention I had a lot more room in the boat) when I got rid of the trolling battery up front and went to a single heavy duty deep cycle in the back. I also bought myself about an inch and a half of freeboard by getting rid of that battery and if fishing at rest and a large wave comes, having all the batteries in the world won't help if they cause your boat to swamp on you. My boat has had fewer waves break over the bow since removing that battery. Anything helps in a small boat! I've gone fishing with the trolling motor on "constant on" for 3-4 hours and when I touch the key it still makes the engine jump off the back of the boat. Deep cycles will also last longer and take more abuse.

[joe]

Re: Do I Need two batteries? more

[remyroy]

Re: Do I Need two batteries?

[ender_x]

My boat is 14'. I have a 1978 35 HP Johnson Outboard, also a 12 v Minn Kota TM and a Fish Finder. Do I need two batteries?

[BillyBobBob]

One thing I seriously doubt most people who say to use two batteries have had is EXPERIENCE with running a single battery. I switched over to one battery in 2006 and haven't looked back since. It was one of the smartest moves I could have made. And here's why: [links]

[sswedcc]

Re: Do I Need two batteries? here

[Marko]

Beyond battery types, the amp hour (Ah) capacity is also relevant. In the case of powering a trolling motor, this determines how many amps can be delivered of smooth power through a deep cycle battery. There’s a trade-off here between power usage and battery duration. Therefore, a 30-pound trolling motor at 25% capacity will run for hours whereas running it at full capacity or 50%, the battery will last much less time.

[xeronet]

There’s a 30-day refund guarantee and a replacement over at no cost up to the first 12 months of ownership. here

[Karmicads]

With the discharging process, this is far more efficient than other battery types. Deep cycle models can use a small amount of energy and still retain the rest. The on/off usage is something they’re adept at and designed for, which is why they work so well. RVs owners also use them for this reason too.

[garrett]

Battery capacity is measured in Ampere-hours or Ah and current draw in amperes (amps). In theory, if your battery has 100Ah capacity and your motor draws 20 amps of current, then you can calculate its run time by dividing 100/20 = 5 hours.

[dlapine]

It has threaded terminals, which means you have to be careful not to overtighten them. here

[mar868lent]

One thing to be careful about is to be careful not to overtighten the battery terminals. If you have a torque wrench, set it to less than 109.8 inch-lb. (12.4 Nm) here

[legion050]

@ 50% depth of discharge 6,000-6,500 Life cycles. more

[cereal_killer]

SLA batteries are heavy, outdated, and require maintenance. Over time they end up being more expensive than a lithium battery. You could replace a lead acid 10 x before having to replace one of our lithium batteries. Additionally weight savings and versatile charging will save you money on fuel and electricity in the long run. [links]

[DerrikeG]

Don’t waste any more money replacing drained or outdated battery packs for the same one year over again – invest instead into our high powered, durable lithium ion cells to get back out onto the water ASAP without having to worry about running low before next fishing season!

[wlisabethfitzgeraldv]

Opportunity Cost.

[BookLover]

More efficient, reliable battery technology for the marine industry. [links]