Best Lithium Trolling Motor Batteries of 2026

Two lines on the Power Queen's specification sheet do something no other 12V battery here does. One is a built-in TVS surge suppressor rated for 12V to 36V motors; the other is an ABYC E-13 marine compliance claim. Neither is glamorous, and both matter on a circuit that switches an inductive load on and off all day, because a trolling motor sends voltage spikes back up the cable every time it starts and stops. We appreciate protection that is designed in rather than assumed.

The rest of the package points at the same buyer. The case is Group 31, so it drops into a standard tray; the BMS is rated 100A continuous with charging cut off at 32 degrees F and discharge at -4 degrees F; and Power Queen rates it to motors up to 120 lb thrust, further than anything else 12V here. The 22-pound weight and the five-year warranty match the Redodo, and the price lands in the same band.

Durability is the least even of the 12V batteries here, with units that quit after a couple of seasons sitting next to ones still pushing a 55 lb Minn Kota after a few years of outings. The warranty covers a lot of that, but it is why this sits behind the Redodo rather than ahead of it. Run a bigger motor, fish salt water, or want surge protection on a boat full of electronics, and the trade is easy to make.

One hundred sixty-five amp-hours is an odd number until you have watched a charge gauge fall faster than the fish were biting. It is 65% more capacity than the 100Ah batteries here, in a case that still fits a Group 31 tray: 13 inches long, 6.77 wide, 8.5 tall. That is the whole argument. You are not buying a bigger box, you are buying a longer day.

Two in series make a 330Ah 24V bank, which is a serious amount of running time for an 80 lb thrust bow mount, and the Bluetooth 5.0 stack puts state of charge on your phone instead of leaving you to guess from a voltage reading. Low-temperature cutoff, an IP65 case and a salt-fog rating describe the same buyer: someone on a bigger boat in salt water who wants to know what is left in the tank.

Figure the money per amp-hour and it lands where the 100Ah batteries do, which means one 165Ah pack costs less than the two 100Ah batteries people usually buy to build 24V. That is the reason we keep coming back to it for anyone assembling a bank rather than replacing a single battery.

A lithium battery won't accept a charge below freezing, which turns a 38-degree launch into a day that runs on whatever the pack had left the night before. This LiTime warms its own cells first: in regular mode it heats below 41 degrees F while on the charger, stops at 50 degrees F, and only then starts taking current. An energy-efficient mode does the same job more slowly for a battery left plugged in overnight.

The rest of the spec is current for this group: Bluetooth 5.0 through the LiTime app with real-time state of charge and a discharge on/off switch, 22.7 pounds, and a Group 24 case that replaces a lead-acid Group 24 without modification. The app controls sound like a novelty until you are storing the boat and want the pack isolated without undoing a terminal.

Four batteries bought together and installed together are exactly how a series bank should be built: same age, same history, same cell behavior, and no balancer chasing a pair that have drifted apart. That is the buyer this pack suits, someone wiring 24V or 36V who wants a matched set in one order with the cold-weather charging already handled. We don't count the pack size as a drawback for that job.

If you only need one battery, the 165Ah above is the better buy even in cold country. A pack you never charge below freezing doesn't need a heater, and carrying one battery indoors for a winter top-up takes five minutes.

Three 12V batteries in series means three BMS boards that don't talk to each other, three sets of cable to torque, and a three-bank charger on the bench. The OGRPHY collapses all of it into one 36V pack with a single 200A BMS, and it arrives with the matching 36V charger and an LCD state-of-charge monitor in the box. It is the only battery here you can unbox and plug straight in.

The rating we care about on the water is 200A continuous with a 1000A peak. That is twice the headroom of the 100A batteries here, and headroom is what keeps a bow mount from tripping the BMS when you bury the throttle into a headwind or drag through weeds. M8 terminals take your existing lugs, and the Bluetooth BMS puts cell data and state of charge in the app.

It is 36V or nothing, though. A 12V or 24V system can't use it, and the included charger is a 36V unit, so the three-bank 12V charger on your shelf becomes a paperweight. For someone already running three 12V batteries on a 36V bow mount and tired of the wiring, that is a fair trade; for anyone still deciding on a system, it is the least flexible purchase in this guide.

Two 12V batteries in series work fine until you have to explain them: the jumper from the positive of one to the negative of the other, the charger that has to see both, the balancer you end up buying because the pair drift apart over a season. A 24V battery deletes all of it. This one delivers 2.56 kWh from a single case with a single 100A BMS, and it expands 4P2S if you want a bigger bank later.

For a 24V bow mount on a midsize aluminum boat, that is the cleanest install in this guide, and it costs about what two 12V 100Ah batteries do without the extra cable, the jumper and a second warranty to track. The case is roughly the footprint of the pair it replaces, so a compartment that held two Group 31s side by side is the space you need.

Nothing about the design gives us pause: low-temperature cut-off, UN38.3 and UL1973 listings, a 100A BMS and 4P2S expansion are all sensible choices for a boat. What you are buying is convenience, one case, one BMS, one warranty, and for a 24V bow mount on a midsize boat that convenience is worth real money.

Nine inches long, 8.38 wide and 5.67 tall. Those numbers are the whole reason to buy this battery, and the reason we keep it in the guide despite a thinner record than the rest: it is shorter than a Group 24 box and, at 19.7 pounds, the lightest 100Ah battery here. If you have been fitting a trolling battery into a hatch built for a 50Ah lead-acid brick, this is the one that saves you cutting fiberglass.

Otherwise the specification is standard for the class: a 100A BMS with low-temperature cutoff, an IP65 case, 4000-plus cycles at full depth and expansion to 4S4P for a bigger bank. Two of these in series make a 24V system that weighs less than a single flooded Group 31.

The terminals are M6 rather than the M8 most of these use, so check your motor's lugs before you order. A 5/16-inch ring terminal wants a washer and a smaller bolt, and it is the kind of detail that turns a ten-minute install into an afternoon. Buy it for the footprint, and accept that the M6 stud is the price of the smaller case.

A small LED meter sits on top of the HQST's case, and it is the detail we noticed first. Most of these batteries make you buy a shunt or open an app to find out where you stand; this one answers the question on the dock, in the rain, without a phone. On a battery at this end of the price range, that is a surprising thing to get.

The rest is honest budget specification: 100Ah, 100A continuous discharge, 4000-plus cycles, low- and high-temperature protection, and 22 pounds in a case measuring 13.07 by 6.77 by 8.66 inches. Note that the Group 22NF label does not mean a small case. Those are Group 31 dimensions, so measure before you assume you are buying a mini.

The temperature window deserves a second look. HQST suspends charging below 23 degrees F rather than the 32 degrees F most of these use, which reads as more permissive and is not something to lean on, since charging a lithium battery near freezing is what plates the cells and shortens its life. Treat a frosty morning as a no-charge morning whatever the cutoff says.

For a 14-foot aluminum boat with a 12V transom mount, and a boater who does not fish in the cold, none of that matters much. What you are buying is a competent pack with a fuel gauge on it for the least money in this guide, and for a first lithium battery that is a good trade.