Why Anglers Are Switching to LiFePO₄ Fishing Batteries

The Hidden Edge That’s Changing the Game

You’ve upgraded your fishfinder. You’ve fine-tuned your trolling motor. But what about your battery?

For years, lead-acid batteries were the default choice for anglers — heavy, high-maintenance, and prone to dying halfway through a long day on the water. But in recent seasons, more and more fishermen are upgrading to LiFePO₄ (Lithium Iron Phosphate) batteries, and not just for the buzz.

They’re making the switch because lithium batteries give them something every angler needs: more time on the water, less worry, and a serious performance edge.

In this post, we’ll break down:

  • Why LiFePO₄ is becoming the top choice for fishing batteries

  • What benefits it offers over traditional options

  • And how Bioenno Power’s lineup fits the needs of anglers who fish smarter — not harder


Why Traditional Marine Batteries Are Holding You Back

Most fishing boats and kayaks still rely on sealed lead-acid (SLA) or AGM batteries. While inexpensive upfront, these batteries come with limitations that directly impact your fishing experience.

1. They're Heavy

A typical 12V lead-acid battery can weigh 40–60 pounds. If you’re running a small jon boat, kayak, or even just a trolling motor, that’s a lot of extra drag.

LiFePO₄ batteries, by comparison, weigh 50–70% less — which means:

  • Easier to carry to and from the boat

  • Less stress on your gear

  • Better boat performance and fuel efficiency

2. Shorter Run Time

Lead-acid batteries only offer about 50% usable capacity before voltage drops to unusable levels. That means a 100Ah lead-acid battery effectively gives you just 50Ah of real power.

LiFePO₄ batteries, on the other hand, let you use nearly 100% of the rated capacity, giving you longer days and more casts.

3. Slower Charging and Poor Efficiency

Lead-acid batteries can take 8–12 hours to fully charge and waste a lot of power as heat. Lithium batteries charge much faster — often in under 3–4 hours, especially with a smart charger.

That means more time fishing, less time waiting.

4. They Don’t Last Long

A good lead-acid battery might last 2–3 seasons before capacity drops off. LiFePO₄ batteries can last 10+ years, even with regular use.


What Makes LiFePO₄ Perfect for Fishing?

Whether you fish lakes, rivers, or saltwater, lithium batteries offer a set of features that make them a game-changer on the water.

Lightweight Portability

A 12V 50Ah LiFePO₄ battery from Bioenno Power weighs around 13 lbs, compared to a similar-capacity SLA battery at 35–40 lbs. That’s a huge benefit for:

  • Kayak anglers

  • Small boats with limited storage

  • Anyone who hauls batteries to remote spots

Longer Run Time for Trolling Motors and Electronics

Anglers love running multiple devices — trolling motors, sonar, GPS, live wells. A LiFePO₄ battery keeps all that running longer and more reliably, even under heavy loads.

With a 100Ah battery, you can often run a 55-lb thrust trolling motor for a full day — without voltage sag or unexpected shutoffs.

Safe and Maintenance-Free

LiFePO₄ batteries don’t leak, off-gas, or require maintenance. They’re completely sealed, and the built-in Battery Management System (BMS) protects against overcharging, deep discharging, and extreme temperatures.

You can focus on fishing — not babysitting your battery.

More Power in a Smaller Package

Because of their higher energy density, lithium batteries give you more usable power in a smaller physical footprint. That’s huge for boats with limited space.


Bioenno Power: Built for Anglers

Bioenno Power has built a reputation in portable power solutions — and their LiFePO₄ batteries are a perfect fit for today’s fishermen. With models ranging from 20Ah to 100Ah, there’s a solution for everything from fishfinders to full-day trolling setups.

Here’s Why Anglers Trust Bioenno:

  • Lightweight and Compact: Easily fits into battery compartments, coolers, or soft packs

  • Marine-Ready: Durable casing and vibration-resistant design

  • Proven Performance: Used by kayak anglers, tournament bass pros, and weekend warriors

  • Safe and Long-Lasting: Built-in BMS and up to 2,000–5,000 cycles

Whether you’re powering a Garmin Livescope, a 30-lb thrust trolling motor, or a full sonar array, Bioenno’s lithium batteries offer consistent, high-quality performance in all conditions.


FAQs About LiFePO₄ Fishing Batteries

Are lithium batteries safe for use on the water?

Yes — LiFePO₄ batteries are one of the safest lithium chemistries available. They don’t catch fire, leak acid, or produce explosive gases. Bioenno’s models are also internally protected with a BMS.

Can I use a lithium battery with my trolling motor?

Absolutely. Just check that the voltage matches (typically 12V or 24V), and that the amp draw is within the battery’s discharge rating. A 50Ah or 100Ah Bioenno battery works great with most trolling motors under 60 lbs of thrust.

How do I charge a LiFePO₄ fishing battery?

Use a lithium-compatible charger to ensure safe, full charging. Bioenno offers matching chargers designed specifically for their batteries.

Can I run a fishfinder and trolling motor from the same battery?

Yes — but make sure the battery has enough capacity. A 100Ah battery can usually run both for a full day. If you're using power-hungry electronics like Livescope, consider separating them across two batteries to avoid interference or voltage drop.


The Best Upgrade You’ll Make This Season

If you’re tired of lugging heavy batteries, cutting your trips short, or dealing with slow charging times, it’s probably time to upgrade.

LiFePO₄ batteries are the future of fishing power, and Bioenno Power offers some of the best solutions for anglers who want performance without compromise. Whether you're a kayak fisherman, a saltwater angler, or a weekend lake warrior, switching to lithium gives you more time casting — and less time charging.

Fish longer. Charge faster. Carry less.
That’s the Bioenno advantage.

Marine & boating powerOutdoor & travel