Bought one for my Vexilar FL-22HD, the battery is lightweight and the runtime is great.

Lasts a very long time without charging

Great battery, charged it once and used it 4 times and it’s still on the green charge light.

Unfortunately hard water has left, did not get a chance to use this battery in my Helix 7.

Bought this battery to replace the lead acid battery in my ice fishing fish finder that only lasted about 6 hours on the ice. The Dakota LiFePo 10Ah lasts for days instead of hours out on the ice!!

We build our own battery packs to be used for backpack electrofishing in AZ. Battery packs built with Dakota lithium batteries have been the best battery packs by far, even compared to the original battery packs purchased with the electrofishing unit from Smith-Root. Last trip we used one battery pack for an entire week of survey work. Excellent batteries so far.

If your thinking about getting a new battery get one of these. Absolutely shits on my old battery

Great so far a ran a helix 7 eight hrs with almost zero drain on the battery

Awesome battery and even better customer service!