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The trolling motor hums all morning and the battery decides when the day ends: that is when a best 12 volt deep cycle battery for trolling motor earns its place. We compared five deep cycle batteries, from 35Ah AGM to 100Ah LiFePO4. Every figure below comes from the listings; where a listing contradicts itself, we say so.
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Quick picks
Best Overall Litime 100Ah LiFePO4: 100Ah LiFePO4, Bluetooth, IP65, 5-year warranty. Check price on Amazon
Best Group 24 MARSENERGY 100Ah LiFePO4: 100Ah LiFePO4, Grade A cells, 5-year warranty. Check price on Amazon
Best 55Ah Mighty Max ML55-12: 55Ah SLA/AGM, UL certified, 1-year warranty. Check price on Amazon
Best Gel Mighty Max ML100-12 Gel: 100Ah gel, UL certified, 1-year warranty. Check price on Amazon
Best 35Ah Interstate DCM0035: 35Ah SLA AGM, 12-month performance warranty. Check price on Amazon
The kits we chose
| # | Product | Solar Score | Buy |
|---|---|---|---|
| 1 | Litime 100Ah LiFePO4 | 9.7/10 | Buy on Amazon |
| 2 | MARSENERGY 100Ah LiFePO4 | 9.6/10 | Buy on Amazon |
| 3 | Mighty Max ML55-12 | 9.6/10 | Buy on Amazon |
| 4 | Mighty Max ML100-12 Gel | 9.5/10 | Buy on Amazon |
| 5 | Interstate DCM0035 | 9.5/10 | Buy on Amazon |
Litime 100Ah LiFePO4
A 100Ah LiFePO4 trolling battery with Bluetooth, IP65 and 5-year warranty.
Pros
- 100Ah LiFePO4, 1280Wh, Group 31
- Bluetooth monitoring stated
- IP65 sealed with 100A BMS and 20+ protections
- 5-year warranty stated
Cons
- 22.2 lb, heavier than the MARSENERGY
- Not for starting batteries per the listing
- Bluetooth needs activation by charging first
- 13 by 6.77 by 8.5 inches needs a Group 31 box
Detailed Review
The listing states a 12V 100Ah LiFePO4 trolling battery with Bluetooth monitoring, Group 31 size, up to 15,000 deep cycles at 60% DOD, low-temperature protection (32 F charge, minus 4 F discharge), IP65 sealeding and a 100A BMS with 20+ safety protections. It weighs 22.2 pounds and holds 1280Wh. A 5-year warranty is stated.
Who it's for: anglers who want monitoring and the strongest protection list here. Who should skip it: anyone needing a Group 24 size, which the MARSENERGY is.
Its Solar Score of 9.7/10 comes from performance 32/35, build 22/25, value 20/25, safety 5/10 and warranty 3/5: 82 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Capacity | 100Ah, 1280Wh |
|---|---|
| Size | Group 31, 13 x 6.77 x 8.5 in |
| Protection | IP65, 100A BMS, 20+ protections |
| Weight | 22.2 lb |
Figures as published on the retailer listing, collected 20 October 2026. Performance figures are manufacturer rated.
Safety and Warranty
What this listing states. IP65 sealed; 100A BMS with 20+ safety protections stated, so safety scores 5 of 10. 5 Years warranty. 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.
MARSENERGY 100Ah LiFePO4
A 100Ah LiFePO4 battery in Group 24 size with Grade A cells and 5-year warranty.
Pros
- 100Ah LiFePO4, Group 24 size
- Grade A cells with 100A BMS
- 4,500 to 15,000 deep cycles stated by DOD
- 5-year manufacturer warranty stated
Cons
- No Bluetooth stated
- No sealed rating stated
- Sleep mode needs activation per the listing
- 21 lb, light but still a full-size battery
Detailed Review
The listing states a 12V 100Ah LiFePO4 battery in Group 24 size with Grade A cells, a 100A BMS with multiple safety protections, 4,500 to 15,000 deep cycles depending on DOD, and BMS cutoffs at minus 4 F discharge and 32 F charge. It weighs 21 pounds and measures 10.16 by 8.46 by 6.54 inches. A 5-year manufacturer warranty is stated.
Who it's for: boaters upgrading a Group 24 lead-acid box. Who should skip it: anyone wanting Bluetooth, which the Litime has.
Its Solar Score of 9.6/10 comes from performance 30/35, build 21/25, value 20/25, safety 5/10 and warranty 3/5: 79 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Capacity | 100Ah |
|---|---|
| Size | Group 24, 10.16 x 8.46 x 6.54 in |
| Cells | Grade A, 100A BMS |
| Weight | 21 lb |
Figures as published on the retailer listing, collected 20 October 2026. Performance figures are manufacturer rated.
Safety and Warranty
What this listing states. 100A BMS with multiple safety protections stated, so safety scores 5 of 10. 5 Year Manufacturer. 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.
Mighty Max ML55-12
A 55Ah SLA/AGM deep cycle battery, UL certified, with 1-year warranty.
Pros
- 55Ah SLA/AGM, trolling motor in the title
- UL certified stated
- Mounts in any position; resists shock and vibration
- 1-year manufacturers warranty stated
Cons
- No weight stated
- Battery and screws only; no harness
- 55Ah, less than the 100Ah picks
- No cycle figure stated
Detailed Review
The listing states a 12V 55Ah sealed lead acid/AGM deep cycle battery, UL certified, measuring 9.06 by 5.43 by 8.98 inches, mountable in any position with shock and vibration resistance. The listing includes the battery and screws only, with no wire harness or mounting accessories. A 1-year manufacturers warranty is stated.
Who it's for: boaters who want a mid-size lead-acid trolling battery. Who should skip it: anyone wanting 100Ah, which two picks here give.
Its Solar Score of 9.6/10 comes from performance 28/35, build 20/25, value 21/25, safety 4/10 and warranty 3/5: 76 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Capacity | 55Ah |
|---|---|
| Type | SLA/AGM |
| Size | 9.06 x 5.43 x 8.98 in |
| Certification | UL |
Figures as published on the retailer listing, collected 20 October 2026. Performance figures are manufacturer rated.
Safety and Warranty
What this listing states. UL Certified, so safety scores 4 of 10. 1 Year Manufacturers Warranty. 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.
Mighty Max ML100-12 Gel
A 100Ah gel deep cycle battery, UL certified, with 1-year warranty.
Pros
- 100Ah gel, UL certified stated
- Non-spillable gel paste
- Resists vibration and shock
- 1-year manufacturers warranty stated
Cons
- 60 lb, the heaviest here
- No cycle figure stated
- Gel costs more per Ah than AGM
- 13 by 6.61 by 8.5 inches needs space
Detailed Review
The listing states a 12V 100Ah gel deep cycle battery, UL certified, with a non-spillable gel paste, vibration and shock resistance, and slower self-discharge than AGM per the listing. It measures 13 by 6.61 by 8.5 inches and weighs 60 pounds. A 1-year manufacturers warranty is stated.
Who it's for: boaters who want a 100Ah lead-acid with gel safety. Who should skip it: anyone counting pounds, at 60 lb.
Its Solar Score of 9.5/10 comes from performance 29/35, build 20/25, value 19/25, safety 4/10 and warranty 3/5: 75 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Capacity | 100Ah |
|---|---|
| Type | Gel |
| Size | 13 x 6.61 x 8.5 in |
| Weight | 60 lb |
Figures as published on the retailer listing, collected 20 October 2026. Performance figures are manufacturer rated.
Safety and Warranty
What this listing states. UL Certified, so safety scores 4 of 10. 1 Year Manufacturers Warranty. 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.
Interstate DCM0035
A 35Ah SLA AGM deep cycle battery with a 12-month performance warranty.
Pros
- 35Ah SLA AGM, spill-proof VRLA
- Insert terminal with bolt
- 12-month performance warranty stated
- 1-year manufacturer warranty stated
Cons
- 35Ah, the smallest capacity here
- 10.4 kg for 35Ah
- Not a golf cart replacement per the listing
- No certification stated
Detailed Review
The listing states a 12V 35Ah sealed lead acid/AGM deep cycle battery with insert terminals, measuring 7.68 by 5.16 by 6.42 inches and weighing 10.4 kg. It states a 12-month performance warranty and a 1-year manufacturer warranty. The listing notes it is not a golf cart battery replacement.
Who it's for: smaller trolling setups needing a compact 35Ah battery. Who should skip it: anyone needing 55Ah or more.
Its Solar Score of 9.5/10 comes from performance 27/35, build 20/25, value 20/25, safety 0/10 and warranty 3/5: 70 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Capacity | 35Ah |
|---|---|
| Type | SLA AGM |
| Size | 7.68 x 5.16 x 6.42 in |
| Weight | 10.4 kg |
Figures as published on the retailer listing, collected 20 October 2026. Performance figures are manufacturer rated.
Safety and Warranty
What this listing states. No battery management system, protection or listing is stated, so safety scores zero. 12-Month Performance Warranty. 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.
As an Amazon Associate I earn from qualifying purchases.
More picks to compare
SUPER EMPOWER 12V 100Ah LiFePO4 BatteryCheck on Amazon
GOKWH 12V 100Ah LiFePO4 Marine BatteryCheck on Amazon
Redodo 12V 50Ah Deep Cycle LiFePO4 BatteryCheck on Amazon
CHITOLI 12V 100Ah TM LiFePO4 BatteryCheck on Amazon
CHITOLI 12V 100Ah LiFePO4 BatteryCheck on Amazon
Numbers side by side
| Battery | Solar Score | Capacity | Type | Weight | Warranty | Amazon |
|---|---|---|---|---|---|---|
| Litime 100Ah LiFePO4 | 9.7/10 | 100Ah | LiFePO4 | 22.2 lb | 5 years | View on Amazon |
| MARSENERGY 100Ah LiFePO4 | 9.6/10 | 100Ah | LiFePO4 | 21 lb | 5 years | View on Amazon |
| Mighty Max ML55-12 | 9.6/10 | 55Ah | SLA/AGM | Not stated | 1 year | View on Amazon |
| Mighty Max ML100-12 Gel | 9.5/10 | 100Ah | Gel | 60 lb | 1 year | View on Amazon |
| Interstate DCM0035 | 9.5/10 | 35Ah | SLA AGM | 10.4 kg | 1 year | View on Amazon |
Specifications are manufacturer rated as listed, collected 20 October 2026.
Where the points went
The Solar Score weighs performance, build, value, safety and warranty. For trolling batteries, safety means stated certifications and protection systems: UL on the two Mighty Max, IP65 and BMS protections on the LiFePO4 picks. All five state a warranty term. How we pick explains the weights.
| Product | Solar Score | Perf. /35 | Build /25 | Value /25 | Safety /10 | Warranty /5 |
|---|---|---|---|---|---|---|
| Litime 100Ah LiFePO4 | 9.7 | 32 | 22 | 20 | 5 | 3 |
| MARSENERGY 100Ah LiFePO4 | 9.6 | 30 | 21 | 20 | 5 | 3 |
| Mighty Max ML55-12 | 9.6 | 28 | 20 | 21 | 4 | 3 |
| Mighty Max ML100-12 Gel | 9.5 | 29 | 20 | 19 | 4 | 3 |
| Interstate DCM0035 | 9.5 | 27 | 20 | 20 | 0 | 3 |
Scores run from 9.2 to 9.8: each product’s point total is placed on that range, so more points always means a higher score.
How to choose the best 12 volt deep cycle battery for trolling motor
LiFePO4 or lead-acid
The Litime and MARSENERGY are 100Ah LiFePO4 with 100A BMS, 5-year warranties and weights of 22.2 and 21 pounds. The lead-acid side: the Mighty Max ML55-12 at 55Ah, the Interstate DCM0035 at 35Ah, and the Mighty Max ML100-12 gel at 100Ah and 60 pounds. LiFePO4 gives more cycles per pound; lead-acid costs less up front per the value scores. The Litime adds Bluetooth monitoring and IP65 sealeding. See our best 12 volt deep cycle battery for RV for the RV side.
Capacity and weight
Stated capacity: 35Ah Interstate, 55Ah ML55-12, 100Ah on the other three. Stated weight: 21 lb MARSENERGY, 22.2 lb Litime, 60 lb ML100-12 gel, 10.4 kg Interstate; the ML55-12 states no weight. Sizes: 9.06 by 5.43 by 8.98 inches (ML55-12), 7.68 by 5.16 by 6.42 inches (Interstate), 13 by 6.77 by 8.5 inches (Litime, Group 31), 10.16 by 8.46 by 6.54 inches (MARSENERGY, Group 24), 13 by 6.61 by 8.5 inches (ML100-12). Also see best LiFePO4 battery charger for RV.
| Battery | Capacity | Type | Weight | Warranty |
|---|---|---|---|---|
| Litime | 100Ah | LiFePO4 | 22.2 lb | 5 years |
| MARSENERGY | 100Ah | LiFePO4 | 21 lb | 5 years |
| ML55-12 | 55Ah | SLA/AGM | Not stated | 1 year |
| ML100-12 Gel | 100Ah | Gel | 60 lb | 1 year |
| DCM0035 | 35Ah | SLA AGM | 10.4 kg | 12 month |
Cycles and protections
Cycle claims: the Litime states up to 15,000 deep cycles at 60% DOD (4,000 at 100% DOD); the MARSENERGY states 4,500 to 15,000 deep cycles depending on DOD. The lead-acid listings state no cycle figures. Protections: the Litime states 20+ safety protections with low-temperature charge and discharge cutoffs; the MARSENERGY states BMS cutoffs at minus 4 F discharge and 32 F charge. The Mighty Max gel states a non-spillable gel paste; both Mighty Max are UL certified.
Alternates worth knowing
Five more listings did not make the main five. The SUPER EMPOWER is a 2-pack of 100Ah LiFePO4 with a 5-year warranty. The GOKWH is a 100Ah LiFePO4 with Bluetooth and a stated 10-year lifespan. The Redodo is a 50Ah LiFePO4 with a 5-year warranty and stated UL certification. The two CHITOLI picks are 100Ah LiFePO4 trolling batteries, each with a 5-year warranty. All five are LiFePO4 designs.
Sizing Notes
- Match capacity to the motor: 35Ah to 100Ah across the five.
- Check the battery box: Group 24 on the MARSENERGY, Group 31 on the Litime; measure before buying.
- The ML55-12 listing includes the battery and screws only; no wire harness or mounting accessories.
- Charge with a lithium-profile charger for the LiFePO4 picks; the listings advise against non-lithium chargers.
FAQ: power away from the grid
LiFePO4 or lead-acid for a trolling motor?
The Litime and MARSENERGY are 100Ah LiFePO4 at 21-22.2 lb; the lead-acid picks run 35-100Ah with the gel at 60 lb. LiFePO4 gives more stated cycles per pound.
Which state a warranty?
The Litime and MARSENERGY state 5 years. The Mighty Max pair state 1 year; the Interstate states a 12-month performance warranty.
Which are UL certified?
Both Mighty Max batteries state UL certification. The Redodo alternate also states UL certification.
How heavy are they?
21 lb MARSENERGY, 22.2 lb Litime, 60 lb ML100-12 gel, 10.4 kg Interstate; the ML55-12 states no weight.
Related solar guides
See every deep cycle RV batteries guide and all batteries guides. Also see our group 27 or group 31 battery.
More picks: solar charger for a dump trailer, LiFePO4 battery charger for RV, LiFePO4 batteries.
