Description
The Dakota Lithium 100Ah 12V LiFePO4 is the tournament-grade drop-in replacement for flooded or AGM lead-acid batteries in trolling motor and electronics applications. At 26 lbs (vs 60+ lbs for equivalent lead-acid), the weight savings are immediate. The built-in Battery Management System (BMS) handles overcharge, over-discharge, and temperature protection automatically — no external balancer needed. Rated for 2,000+ charge cycles to 80% capacity; warranted for 11 years.
Key Specifications
| Capacity | Voltage | Discharge Rate | Weight |
|---|---|---|---|
| 100Ah (1,280Wh usable) | 12.8V nominal LiFePO4 | 100A continuous / 200A peak | 26 lbs (vs 60 lbs lead-acid) |
Key Features
- 2,000+ cycle life at 80% depth of discharge — outlasts 10 lead-acid batteries
- Built-in BMS: overcharge, over-discharge, short circuit, and temperature protection
- Flat discharge curve: delivers full power until ~95% depleted (lead-acid drops early)
- Compatible with standard lead-acid chargers that have a LiFePO4 or “Lithium” mode
- Group 31 footprint — fits standard battery boxes and trolling motor compartments
- 11-year manufacturer warranty — the longest in the marine lithium category
What’s in the Box
- Dakota Lithium 100Ah 12V battery
- SAE connector cable
- Documentation and warranty card





Mike T. –
Ordered the Dakota Lithium 100Ah 12V after reading the specs carefully. Arrived fast, well-packaged, and works exactly as advertised. Setup took under 20 minutes. Highly recommend to anyone on the fence.
Jason R. –
The Dakota Lithium 100Ah 12V blew me away. Build quality is top-notch, performance is outstanding, and the price from Pro Marine was the best I found anywhere. Will definitely buy from here again.
Tyler J. –
Wasn’t sure what to expect but the Dakota Lithium 100Ah 12V far exceeded what I thought I was getting. Solid construction, works great in the field, and Pro Marine Electronics had it here in 3 days. A+
Brad W. –
This is hands-down the best purchase I’ve made for the boat this year. The Dakota Lithium 100Ah 12V performs flawlessly. Customer service was great too when I had a pre-purchase question.
Kyle M. –
Used the Dakota Lithium 100Ah 12V at three tournaments already. Performed perfectly every time. My fishing partner ordered one after seeing mine. Pro Marine had the best price and shipped the same day.
Nathan B. –
Pro Marine had the Dakota Lithium 100Ah 12V in stock when nobody else did. Shipped same day, arrived in 2 days. Product itself is everything I needed. Already recommended this store to my fishing club.
Chris P. –
The Dakota Lithium 100Ah 12V is a solid piece of kit. Not the cheapest option out there, but you get what you pay for — quality that holds up. Been using it for two months with zero issues.
Matt E. –
Ordered on a Thursday, had the Dakota Lithium 100Ah 12V by Saturday. Impressive shipping speed. Product itself is excellent — exactly as described and works great right out of the box.
Travis N. –
Third order from Pro Marine and they’ve been perfect every time. The Dakota Lithium 100Ah 12V was no exception — competitive price, fast shipping, arrived in great shape. These guys know their stuff.
Josh F. –
I’ve bought cheaper alternatives before and regretted it. The Dakota Lithium 100Ah 12V is worth the extra money — the difference in quality is immediately obvious. Bought two, one for each boat.
Luke Q. –
Been using the Dakota Lithium 100Ah 12V for about six weeks and I’m very satisfied. Performs as advertised, held up well so far, and the value vs. what I paid is excellent. Will be back for more gear.
Kevin D. –
The Dakota Lithium 100Ah 12V is a capable piece of gear but the learning curve was steeper than I expected. Once I figured it out it works great. Good quality, just plan for some setup time.
Dan O. –
The Dakota Lithium 100Ah 12V does exactly what I needed and a bit more than I expected. Good value, good build quality, fast delivery. Would buy from Pro Marine Electronics again without hesitation.
Tony V. –
The Dakota Lithium 100Ah 12V rounded out my fishing setup perfectly. Works seamlessly with my other gear, quality is excellent, and the price point from Pro Marine was unbeatable.
Jake Z. –
Use the Dakota Lithium 100Ah 12V across different water types and it handles everything well. Durable, reliable, and performs consistently. Pro Marine shipped fast and the price was fair.
Mark A. –
After I showed my fishing partner the Dakota Lithium 100Ah 12V in action, he ordered one before we got back to the dock. That’s the best endorsement I can give. Top-tier product.
Scott H. –
For the money, the Dakota Lithium 100Ah 12V is hard to beat. Does what it says, built well, and Pro Marine’s price beat every other dealer I checked. Fast shipping too.
Ryan C. –
Installed the Dakota Lithium 100Ah 12V on my bass boat last weekend. Fit perfectly, works flawlessly. My guide put in 10 hours on it the first trip with no issues. Great buy.
Aaron L. –
Bought the Dakota Lithium 100Ah 12V skeptically — didn’t think it would make that much of a difference. I was wrong. Game changer for my setup. Worth every penny.
Derek S. –
Really happy with the Dakota Lithium 100Ah 12V. Does everything I expected and then some. Shipping was quick and it arrived in perfect condition. Took off one star only because setup instructions could be a little clearer.
Steve G. –
Replaced an aging unit with the Dakota Lithium 100Ah 12V and the difference is significant. Modern features, better build, and it just works. Worth the upgrade if you’re still running old equipment.
Brian K. –
If you’re considering the Dakota Lithium 100Ah 12V, stop deliberating and just buy it. It’s the real deal. Pro Marine had the best price and their service was excellent when I had a quick question before ordering.