On this page
A trolling motor runs on a battery, and the wrong size leaves you rowing back or stops the motor mid-trip. What size battery for trolling motor? The answer comes from your motor’s voltage and the hours you plan to run: match the battery voltage to the motor voltage, and pick the capacity for the hours you need. This guide shows how to match voltage and capacity, and the batteries below cover the sizes in the listings.
SolarKitHQ earns a commission when you buy through links on this page, at no extra cost to you. As an Amazon Associate I earn from qualifying purchases. Affiliate disclosure.
The quick answer: what size battery for trolling motor
Match the voltage first, then the capacity. A 12V motor takes a 12V battery, and a 24V motor takes a 24V battery. The listings in this guide hold 12V 100Ah batteries and a 24V 125Ah battery, all in a Group 24 size that fits a standard battery box. Capacity sets how long the motor runs: the Power Queen 24V 125Ah (on Amazon) states 3200Wh of usable energy and up to 18 hours runtime at 7A, while the 12V 100Ah batteries state 1280Wh. Pick the voltage your motor needs, then the capacity for your hours on the water.
Match the voltage first
Voltage is not a choice to guess at. The Renogy, Lithova and RVLithTime listings state 12V 100Ah batteries, and the Power Queen states a 24V 125Ah battery with a 24V 20A charger. The Power Queen listing states it is built for 70-100lb thrust setups, while the RVLithTime states a fit for 30-70 lbs trolling motors. The Renogy listing states 150A continuous discharge and 300A surge discharge for 30 seconds, providing power for 12V-36V trolling motors. If your motor is a 24V motor, the Power Queen is the only listing here that matches it.
How long will it run
Runtime comes from capacity and the motor’s draw. The Power Queen states up to 18 hours at 7A from its 3200Wh, and it recharges fully in 6.25 hours with the 24V 20A charger. The Lithova states about 5 hrs to charge fully at a 14.6V charging voltage and 20A charging current. Cycle life is a separate figure: the Lithova states 4000+ cycles at 100% DoD, 6000 at 80% DoD and 15000 at 60% DoD, and the RVLithTime states 4000 cycles at 100% DOD, 6000+ at 80% DOD and 15000+ at 60% DOD. A battery that cycles well lasts more seasons, even if the hours per trip stay the same.
Size, weight and fit
The batteries in this guide state a Group 24 size, which fits the standard battery box on most boats. The Renogy states 21.8 lbs, half the weight of lead-acid, at 2/3 the volume of Group 31. The Lithova states 22.57 lbs, 35% smaller and 70% lighter than ordinary lead-acid batteries. The RVLithTime states 10.2 by 6.65 by 8.39 inches, 35% smaller and 80% lighter than a 12V 100Ah Group 31 lead-acid battery, and a weight of 20.89 pounds. The Power Queen is a MINI size 24V battery with 25% more power in a 16% smaller footprint. Check the box size and the cable length before you order, since a battery that does not fit the box costs more to return than to measure.
The gear: batteries for your trolling motor
Once you know the voltage your motor needs and the hours you plan to run, the batteries below cover the sizes in the listings, with the capacity and discharge figures for each step of the choice.
Renogy 12V 100Ah Trolling Motor LiFePO4 Battery
A 12V 100Ah LiFePO4 battery with Bluetooth and a 100A BMS, built for 12V trolling motors in a Group 24 size.
Pros
- 150A continuous discharge and 300A surge discharge (for 30 seconds) stated
- Bluetooth 5.3 and the Renogy App for real-time updates
- IP67 protection stated, with low-temp cut-off
- 5-year prorated material and workmanship warranty stated
Cons
- No cycle life figure is stated
- No charger is included in the listing
Detailed Review
The listing states a 12V 100Ah LiFePO4 battery with 150A continuous discharge and 300A surge discharge for 30 seconds, providing power for 12V-36V trolling motors. It states 21.8 lbs, half the weight of lead-acid, in a Group 24 size at 2/3 the volume of Group 31. The listing states IP67 protection, Bluetooth 5.3 with the Renogy App, a 100A BMS in the title and a 150A BMS in the bullets, with 25+ protections and a low-temp cut-off. The spec table states 22.0 pounds and a 5-year prorated material and workmanship warranty.
Who it's for: anglers who want a 12V Group 24 battery with the strongest discharge figures and the longest warranty in this guide. Who should skip it: anyone who needs a stated cycle life figure or a charger in the box, which this listing does not give.
Its Solar Score of 9.7/10 comes from performance 30/35, build 21/25, value 20/25, safety 9/10 and warranty 5/5: 85 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Capacity | 12V 100Ah |
|---|---|
| Discharge | 150A continuous, 300A surge for 30 seconds |
| BMS | 100A BMS (title); 150A BMS (bullets) |
| Weight | 21.8 lbs (bullets); 22.0 pounds (spec table) |
Figures as published on the retailer listing, collected 13 November 2026. Performance figures are manufacturer rated.
Safety and Warranty
What this listing states. IP67 protection and 25+ protections with low-temp cut-off stated, so safety scores 9 of 10. 5-year prorated material and workmanship warranty stated, so warranty scores 5 of 5. See How We Pick.
Battery safety. Charge with a charger and settings that match the stated chemistry, fuse the positive lead as the manual directs, cover terminals, keep within the stated temperature range, and never charge a damaged battery.
This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.
Lithova 12V 100Ah LiFePO4 Battery Group 24
A 12V 100Ah LiFePO4 battery with a smart BMS and 1280Wh, stated for RVs, marine, trolling motors and solar storage.
Pros
- 1280Wh with 4000+ cycles at 100% DoD, 6000 at 80% DoD and 15000 at 60% DoD
- Smart BMS with over-charge, over-discharge, over-current and short-circuit protection
- Expandable from 1.28kWh to 20.48kWh with 16 batteries in 4P4S
- 5-years warranty and 24 hrs customer service stated
Cons
- No Bluetooth is stated
- Stated for energy storage rather than start-up engines
- No IP rating is stated
Detailed Review
The listing states a 12V 100Ah Group 24 LiFePO4 battery with 1280Wh, 4000+ deep cycles at 100% DoD, 6000 at 80% DoD and 15000 at 60% DoD. It states a smart BMS with cell balancing, over-charge, over-discharge, over-current and short-circuit protection, and a weight of 22.57 lbs, 35% smaller and 70% lighter than ordinary lead-acid batteries, with energy density increased by 3-5 times. The listing states a 14.6V charging voltage and 20A charging current, about 5 hrs to charge fully, a 15-years lifespan, a 5-years warranty and 24 hrs customer service, with a size of 6.6 by 10.2 by 8.3 inches. The spec table states 23.0 pounds.
Who it's for: anyone who wants a 12V Group 24 battery with the longest stated cycle life and room to expand to 20.48kWh. Who should skip it: anyone who needs Bluetooth, an IP rating or a starter battery, which this listing does not give.
Its Solar Score of 9.7/10 comes from performance 29/35, build 21/25, value 21/25, safety 8/10 and warranty 5/5: 84 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Capacity | 12V 100Ah, 1280Wh |
|---|---|
| Cycles | 4000+ @100% DoD, 6000 @80% DoD, 15000 @60% DoD |
| Charging | 14.6V, 20A, about 5 hrs to charge fully |
| Size | Group 24, 6.6 x 10.2 x 8.3 inches |
Figures as published on the retailer listing, collected 13 November 2026. Performance figures are manufacturer rated.
Safety and Warranty
What this listing states. Smart BMS with over-charge, over-discharge, over-current and short-circuit protection stated, so safety scores 8 of 10. 5-years warranty stated, so warranty scores 5 of 5. See How We Pick.
Battery safety. Charge with a charger and settings that match the stated chemistry, fuse the positive lead as the manual directs, cover terminals, keep within the stated temperature range, and never charge a damaged battery.
This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.
RVLithTime 12V 100Ah Group 24 LiFePO4 Battery
A 12V 100Ah LiFePO4 battery with a 100A BMS and 1280Wh, stated for 30-70 lbs trolling motors in a Group 24 size.
Pros
- 1280Wh with 4000 cycles at 100% DOD, 6000+ at 80% DOD and 15000+ at 60% DOD
- 100A BMS with overcharge, over-discharge, over-current, short circuit and high temperature protection
- 10.2 x 6.65 x 8.39 inches, 35% smaller and 80% lighter than a Group 31 lead-acid battery
- Stated for 30-70 lbs trolling motors
Cons
- 2 Years warranty, shorter than the 5-year warranties in this guide
- No Bluetooth is stated
- Not suitable for starter batteries or golf cart batteries
- No IP rating is stated
Detailed Review
The listing states a 12V 100Ah Group 24 LiFePO4 battery with 1280Wh and a max load power of 1280W, a 100A BMS and 4000 cycles at 100% DOD, 6000+ at 80% DOD and 15000+ at 60% DOD. It states a 10 years lifespan, a size of 10.2 by 6.65 by 8.39 inches, 35% smaller and 80% lighter than a 12V 100Ah Group 31 lead-acid battery, and a fit for 30-70 lbs trolling motors. The listing states a 14.6V 20A recommended charger, a 4P4S connection to a 51.2V 400Ah (20.48kWh) battery bank, charge temperatures of 32-113°F and discharge temperatures of -4-140°F, a weight of 20.89 pounds and a 2 Years Warranty.
Who it's for: anglers with a 30-70 lbs trolling motor who want a compact Group 24 battery with a stated cycle life. Who should skip it: anyone who needs a longer warranty, Bluetooth or an IP rating, which this listing does not give.
Its Solar Score of 9.6/10 comes from performance 29/35, build 20/25, value 20/25, safety 8/10 and warranty 3/5: 80 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Capacity | 12V 100Ah, 1280Wh |
|---|---|
| Cycles | 4000 @100% DOD, 6000+ @80% DOD, 15000+ @60% DOD |
| Size | Group 24, 10.2 x 6.65 x 8.39 inches |
| Temperature | Charge 32-113°F, discharge -4-140°F |
Figures as published on the retailer listing, collected 13 November 2026. Performance figures are manufacturer rated.
Safety and Warranty
What this listing states. 100A BMS with overcharge, over-discharge, over-current, short circuit and high temperature protection stated, so safety scores 8 of 10. 2 Years Warranty stated. It does not say everything a buyer needs, such as who pays return shipping, so warranty scores 3 of 5. See How We Pick.
Battery safety. Charge with a charger and settings that match the stated chemistry, fuse the positive lead as the manual directs, cover terminals, keep within the stated temperature range, and never charge a damaged battery.
This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.
Power Queen 24V 125Ah Lithium Trolling Motor Battery
A 24V 125Ah lithium battery with a 24V 20A charger, self-heating and Bluetooth, stated for 70-100lb thrust trolling motors.
Pros
- 24V 125Ah with 3200Wh of usable energy and up to 18 hours runtime at 7A
- Self-heating with dual self-heating modes and low temp protection
- Bluetooth monitoring through the Power Queen App
- 24V 20A charger included, recharges fully in 6.25 hours
Cons
- No warranty term is stated
- Notice states a 24V 1250Ah battery, which reads like a typo for 125Ah
- Notice states the charger must be kept dry and protected from water
Detailed Review
The listing states a 24V 125Ah lithium trolling motor battery with 3200Wh of usable energy, a 125A BMS and IP67 protection, built for 70-100lb thrust setups. It states up to 18 hours runtime at 7A, 25% more power in a 16% smaller footprint, Bluetooth monitoring through the Power Queen App, dual self-heating modes and low temp protection. The bundle states a 24V 20A lithium battery charger that recharges fully in 6.25 hours, and the notice states that the battery and charger ship in 2 packages. The notice also states a 24V 1250Ah battery, which reads like a typo for the 125Ah in the title.
Who it's for: anglers with a 24V trolling motor who want the most capacity in this guide with a charger in the box. Who should skip it: anyone who needs a 12V battery or a stated warranty term, which this listing does not give.
Its Solar Score of 9.6/10 comes from performance 33/35, build 22/25, value 21/25, safety 8/10 and warranty 0/5: 84 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Capacity | 24V 125Ah, 3200Wh |
|---|---|
| Runtime | Up to 18 hours at 7A |
| Charger | 24V 20A charger, recharges fully in 6.25 hours |
| BMS | 125A BMS, IP67 protection |
Figures as published on the retailer listing, collected 13 November 2026. Performance figures are manufacturer rated.
Safety and Warranty
What this listing states. IP67 protection, 125A BMS and low temp protection stated, so safety scores 8 of 10. No warranty term, so warranty scores zero. See How We Pick.
Battery safety. Charge with a charger and settings that match the stated chemistry, fuse the positive lead as the manual directs, cover terminals, keep within the stated temperature range, and never charge a damaged battery.
This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.
As an Amazon Associate I earn from qualifying purchases.
FAQ: power away from the grid
What size battery for a 12V trolling motor?
A 12V 100Ah battery. The Renogy, Lithova and RVLithTime listings all state 12V 100Ah in a Group 24 size, with the Lithova and RVLithTime stating 1280Wh.
What size lithium battery for a 24V trolling motor?
A 24V 125Ah battery. The Power Queen listing states a 24V 125Ah battery with 3200Wh of usable energy, up to 18 hours runtime at 7A, and a 24V 20A charger in the bundle.
How long does a 100Ah trolling motor battery last?
It depends on the motor’s draw, which the listings do not state for a 100Ah battery. The Power Queen 24V 125Ah states up to 18 hours at 7A. For cycle life, the Lithova states 4000+ cycles at 100% DoD and the RVLithTime states 4000 cycles at 100% DOD.
Can I use a 12V battery on a 24V trolling motor?
No. Match the battery voltage to the motor voltage: a 24V motor needs a 24V battery, and the Power Queen is the only 24V listing in this guide. The Lithova and RVLithTime listings also state their batteries are for energy storage and trolling motors, not for starter batteries.
Related solar guides
See the 12V vs 24V battery for trolling motor comparison, the best 12 volt deep cycle battery for trolling motor guide, and the best battery charger for trolling motor. See every Batteries and Charging guide.
