On this page
When a trolling motor fades on open water, the best 36 volt trolling motor battery is the part that decides whether the boat keeps moving or drifts back to the ramp. The listings here were compared by capacity, discharge current, BMS protections, size, weight, and warranty terms, with every figure taken from the listings. The larger-capacity pick leads for long days on the water, while smaller-capacity picks suit boats where space and weight matter more.
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.
Quick picks
Best Overall LiTime 36V 100Ah: 100Ah capacity, 100A BMS, Bluetooth monitoring, and a 25A charger in the box Check price on Amazon
Best GC2 Size Dyness 36V 55Ah: 55Ah in a GC2 size with a 150A BMS and low-temperature protection Check price on Amazon
Best Bluetooth Pick Power Queen 36V 50Ah: Bluetooth monitoring, low-temperature cut-off, and Group 31 size Check price on Amazon
Best Charger Bundle LiTime 36V 50Ah: 50Ah with a 43.8V 25A charger and a 60A BMS Check price on Amazon
Best Group 31 Pick LGECOLFP 36V 50Ah: Group 31 size, 50A BMS, and IP65 rating in a compact case Check price on Amazon
The kits we chose
| # | Product | Solar Score | Buy |
|---|---|---|---|
| 1 | LiTime 36V 100Ah | 9.8/10 | Buy on Amazon |
| 2 | Dyness 36V 55Ah | 9.7/10 | Buy on Amazon |
| 3 | Power Queen 36V 50Ah | 9.7/10 | Buy on Amazon |
| 4 | LiTime 36V 50Ah | 9.6/10 | Buy on Amazon |
| 5 | LGECOLFP 36V 50Ah | 9.5/10 | Buy on Amazon |
LiTime 36V 100Ah
A 36V 100Ah LiFePO4 battery with Bluetooth monitoring, a 100A BMS, and a 25A charger for trolling motors and marine use.
Pros
- 100Ah capacity with a 25A charger in the box
- Bluetooth 5.0 for real-time battery status tracking
- ABYC certification for outboard motors stated in the listing
- Supports a 2S4P system up to 72V and 28,800Wh
Cons
- 63.1 lb weight and large dimensions stated
- Requires initial activation charge with a lithium or MPPT charger
- No Group size stated in the listing
- Large dimensions need a large battery compartment
Detailed Review
The listing states a 36V 100Ah LiFePO4 battery with Bluetooth 5.0, a 100A BMS, low-temperature protection, an IP65 rating, and ABYC certification for outboard motors, plus a 25A charger. It states 4000 to 15000 cycles, 500A surge current, and a 2S4P system up to 72V and 28,800Wh. The listing also states an initial activation charge with a lithium or MPPT charger after first use or power-off.
Who it's for: boat owners who want the largest capacity in this list with charger and Bluetooth monitoring in the box. Who should skip it: owners with a small battery compartment, since the listing states 63.1 lb and dimensions of 20.47 by 10.55 by 8.66 inches.
Its Solar Score of 9.8/10 comes from performance 33/35, build 20/25, value 22/25, safety 10/10 and warranty 4/5: 89 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Capacity | 36V 100Ah |
|---|---|
| BMS | 100A BMS, 500A surge |
| Size | 20.47 x 10.55 x 8.66 in |
| Weight | 63.1 lb |
Figures as published on the retailer listing, collected 3 November 2026. Performance figures are manufacturer rated.
Safety and Warranty
What this listing states. 100A BMS with 20+ protections, low-temperature cut-off, IP65 rating, and ABYC membership stated, so safety scores 10 of 10. LiTime provides a 5-year free warranty from your purchase date. It does not say everything a buyer needs, such as who pays return shipping, so warranty scores 4 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.
Dyness 36V 55Ah
A 36V 55Ah LiFePO4 battery in GC2 size with a 150A BMS, low-temperature protection, and an IP65 rating for trolling motors and marine use.
Pros
- 55Ah capacity with 2112Wh stated in the listing
- 150A continuous discharge with 450A surge current stated
- Low-temperature charging stops below 32°F and restarts above 41°F
- GC2 size and 30.0 lb weight
Cons
- No charger stated in the listing
- No Bluetooth monitoring stated in the listing
- Cycle figures differ by use condition in the listing
- Parallel use only, listing states do not connect in series
Detailed Review
The listing states a 36V 55Ah LiFePO4 battery with 2112Wh, a 150A BMS, 450A surge current, low-temperature protection, and an IP65 rating in GC2 size. Cycle figures in the listing differ by condition: over 4000 cycles at 100% depth of discharge, and up to 15000 cycles with proper usage. The listing states parallel connection up to four batteries for 220Ah and 8.4kWh, and states do not connect in series.
Who it's for: trolling motor owners who want high discharge current in a 30.0 lb GC2 battery. Who should skip it: owners who want a charger or Bluetooth monitoring stated in the box, since neither is stated here.
Its Solar Score of 9.7/10 comes from performance 32/35, build 21/25, value 19/25, safety 9/10 and warranty 4/5: 85 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Capacity | 36V 55Ah, 2112Wh |
|---|---|
| BMS | 150A BMS, 450A surge |
| Size | 7.09 x 10.24 x 10.62 in |
| Weight | 30.0 lb |
Figures as published on the retailer listing, collected 3 November 2026. Performance figures are manufacturer rated.
Safety and Warranty
What this listing states. Built-in 150A BMS, IP65 rating, and low-temperature charging protection stated, so safety scores 9 of 10. 5 Year Manufacturer. It does not say everything a buyer needs, such as who pays return shipping, so warranty scores 4 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 36V 50Ah
A 36V 50Ah LiFePO4 battery with Bluetooth monitoring, Group 31 size, and low-temperature protection for boats and trolling motors.
Pros
- Bluetooth 5.0 monitoring for voltage, SOC, and temperature
- 1920Wh capacity with 50A continuous discharge stated
- Group 31 size at 33.14 lb with ABS housing
- Low-temperature cut-off from 0°C to 5°C auto-resume stated
Cons
- No charger stated in the listing
- 60A peak discharge lasts 30 minutes, not continuously
- Bluetooth needs charging for 3 to 10 seconds to power on
- Not for engine starting, as an energy storage battery
Detailed Review
The listing states a 36V 50Ah LiFePO4 battery with 1920Wh, Bluetooth 5.0, a built-in BMS, an IP65 rating, and Group 31 size. It states 50A continuous discharge with 60A peak for 30 minutes, 4000+ deep cycles, and low-temperature charging cut-off with auto-resume from 0°C to 5°C. The listing states the battery is an energy storage battery, not a start-up battery.
Who it's for: boat owners who want Bluetooth monitoring and Group 31 size for a 36V trolling motor up to 120 lb. Who should skip it: owners who want a charger stated in the box, or who need engine starting.
Its Solar Score of 9.7/10 comes from performance 29/35, build 21/25, value 20/25, safety 9/10 and warranty 4/5: 83 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Capacity | 36V 50Ah, 1920Wh |
|---|---|
| BMS | 50A continuous, 60A peak |
| Size | 13.0 x 6.77 x 8.5 in |
| Weight | 33.14 lb |
Figures as published on the retailer listing, collected 3 November 2026. Performance figures are manufacturer rated.
Safety and Warranty
What this listing states. Built-in BMS with overcharge, over-discharge, short-circuit and cell imbalance protection, low-temperature charging cut-off, and IP65 rating stated, so safety scores 9 of 10. 5 Year Warranty. It does not say everything a buyer needs, such as who pays return shipping, so warranty scores 4 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.
LiTime 36V 50Ah
A 36V 50Ah LiFePO4 battery with a 43.8V 25A charger, a 60A BMS, and parallel expansion for trolling motors and marine use.
Pros
- 43.8V 25A charger included in the box
- 60A BMS with overcharge and over-discharge protection
- 50Ah capacity with 4000+ deep cycles stated
- Parallel expansion to 200Ah and 7.68kWh stated
Cons
- No Bluetooth monitoring stated for this listing
- Cycle figures differ between title and bullets
- Requires charger activation after first use
- Not designed for engine starting
Detailed Review
The listing states a 36V 50Ah LiFePO4 battery with a 43.8V 25A charger, a 60A BMS, and parallel expansion to 200Ah and 7.68kWh. Cycle figures differ in the listing: the title states up to 15000 cycles, while the bullets state 4000+ deep cycles. The listing states suitability for 36V trolling motors up to 120 lb thrust, and states the battery is not designed for engine starting.
Who it's for: trolling motor owners who want a charger in the box with 50Ah capacity. Who should skip it: owners who want Bluetooth monitoring stated, since this listing does not state Bluetooth.
Its Solar Score of 9.6/10 comes from performance 29/35, build 19/25, value 21/25, safety 8/10 and warranty 4/5: 81 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Capacity | 36V 50Ah |
|---|---|
| BMS | 60A BMS |
| Charger | 43.8V 25A charger |
| Weight | 39.42 lb |
Figures as published on the retailer listing, collected 3 November 2026. Performance figures are manufacturer rated.
Safety and Warranty
What this listing states. 60A BMS with overcharge, over-discharge and extreme-temperature protection, and IP65 charger stated, so safety scores 8 of 10. LiTime provides a 5-year free warranty from your purchase date. It does not say everything a buyer needs, such as who pays return shipping, so warranty scores 4 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.
LGECOLFP 36V 50Ah
A 36V 50Ah LiFePO4 battery in Group 31 size with a 50A BMS and an IP65 rating for trolling motors up to 120 lb thrust.
Pros
- Group 31 size with IP65 rating stated
- 50A continuous discharge, 60A for 30 minutes
- 4000+ cycles stated for high-thrust trolling motors
- Parallel expansion to 200Ah and 7.68kWh stated
Cons
- 12-month warranty, shorter than other picks here
- No charger stated in the listing
- No Bluetooth monitoring stated in the listing
- No weight stated in the listing
Detailed Review
The listing states a 36V 50Ah LiFePO4 battery with a 50A BMS, 1920W power output, an IP65 rating, and Group 31 size. It states 50A continuous discharge with 60A for 30 minutes, over 4000 cycles, and parallel expansion to 200Ah and 7.68kWh. No weight is stated in the listing, and the 100 to 120 lb figure in the listing is thrust, not weight.
Who it's for: owners of high-thrust trolling motors who want Group 31 size and IP65 rating. Who should skip it: owners who want a longer warranty term or a charger stated, since this listing states a 12-month warranty and no charger.
Its Solar Score of 9.5/10 comes from performance 28/35, build 20/25, value 18/25, safety 7/10 and warranty 2/5: 75 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Capacity | 36V 50Ah, 1920W |
|---|---|
| BMS | 50A BMS |
| Size | 12.8 x 6.7 x 8.4 in |
| Group | Group 31 |
Figures as published on the retailer listing, collected 3 November 2026. Performance figures are manufacturer rated.
Safety and Warranty
What this listing states. Built-in 50A BMS and IP65 rating stated, so safety scores 7 of 10. 12 Month Warranty. It does not say everything a buyer needs, such as who pays return shipping, so warranty scores 2 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
LiTime 36V 50Ah BluetoothFor trolling motors up to 120lb thrust with Bluetooth monitoringCheck on Amazon- LiTime 2 Pack 36V 50AhFor two 36V 50Ah Bluetooth trolling motor batteriesCheck on Amazon
- LiTime 36V 100Ah CompactFor a compact 36V 100Ah Bluetooth trolling motor batteryCheck on Amazon
- LiTime 36V 100Ah OBMFor a 36V 100Ah Bluetooth trolling motor and marine batteryCheck on Amazon
Numbers side by side
| Battery | Solar Score | Capacity | BMS | Weather rating | Warranty | Amazon |
|---|---|---|---|---|---|---|
| LiTime 36V 100Ah | 9.8/10 | 36V 100Ah | 100A BMS | IP65 | 5 years | View on Amazon |
| Dyness 36V 55Ah | 9.7/10 | 36V 55Ah | 150A BMS | IP65 | 5 years | View on Amazon |
| Power Queen 36V 50Ah | 9.7/10 | 36V 50Ah | 50A BMS | IP65 | 5 years | View on Amazon |
| LiTime 36V 50Ah | 9.6/10 | 36V 50Ah | 60A BMS | Not stated | 5 years | View on Amazon |
| LGECOLFP 36V 50Ah | 9.5/10 | 36V 50Ah | 50A BMS | IP65 | 12 months | View on Amazon |
We copied each rating from the seller’s listing as the brand states it; data date 3 November 2026.
Where the points went
The Solar Score weighs performance, build, value, safety and warranty. For a trolling motor battery, safety means BMS protections, low-temperature cut-off, and an IP rating stated on the listing. All five picks state a warranty term, with four stating a 5-year term and one stating a 12-month term. How we pick explains the weights.
| Product | Solar Score | Perf. /35 | Build /25 | Value /25 | Safety /10 | Warranty /5 |
|---|---|---|---|---|---|---|
| LiTime 36V 100Ah | 9.8 | 33 | 20 | 22 | 10 | 4 |
| Dyness 36V 55Ah | 9.7 | 32 | 21 | 19 | 9 | 4 |
| Power Queen 36V 50Ah | 9.7 | 29 | 21 | 20 | 9 | 4 |
| LiTime 36V 50Ah | 9.6 | 29 | 19 | 21 | 8 | 4 |
| LGECOLFP 36V 50Ah | 9.5 | 28 | 20 | 18 | 7 | 2 |
We place weighted points on a scale whose ends are 9.2 and 9.8. Because the mapping is straight, a unit with more points never shows less.
How to choose the best 36 volt trolling motor battery
Match capacity to thrust and run time
Capacity sets how much energy the battery holds, and the picks here span a wide range. The LiTime 36V 100Ah listing states 100Ah, the Dyness listing states 55Ah and 2112Wh, and the other three listings state 50Ah each. The LGECOLFP, Power Queen, and LiTime 36V 50Ah listings state suitability for trolling motors up to 120 lb thrust, so a motor in that thrust range has three picks to compare on other figures. For the voltage comparison, see 24V vs 36V trolling motor battery, and for capacity steps, see 50Ah vs 100Ah LiFePO4 battery. A larger capacity does not change the motor voltage, and a smaller capacity does not change the BMS current, so match capacity, thrust, and BMS current together rather than capacity alone.
Check BMS current against the motor
BMS current sets the continuous discharge the battery can sustain, and the picks differ sharply on this figure. The Dyness listing states 150A continuous discharge with 450A surge current, the LiTime 36V 100Ah listing states a 100A BMS with 500A surge current, and the LiTime 36V 50Ah listing states a 60A BMS. The Power Queen listing states 50A continuous discharge with 60A peak for 30 minutes, and the LGECOLFP listing states 50A continuous discharge with 60A for 30 minutes. A motor that draws near the BMS limit on a regular basis will be a poor match for a 50A pick, while a 150A pick leaves more headroom on discharge current, though headroom alone does not make a battery the right size for a given boat.
| Battery | BMS | Continuous discharge | Surge or peak |
|---|---|---|---|
| LiTime 36V 100Ah | 100A BMS | 100A BMS | 500A surge |
| Dyness 36V 55Ah | 150A BMS | 150A | 450A surge |
| Power Queen 36V 50Ah | Built-in BMS | 50A | 60A peak for 30 minutes |
| LiTime 36V 50Ah | 60A BMS | Not stated | Not stated |
| LGECOLFP 36V 50Ah | 50A BMS | 50A | 60A for 30 minutes |
Check size, weight, and Group size
Size and weight decide whether a battery fits the compartment and whether the boat trim changes with the swap. The Dyness listing states GC2 size at 30.0 lb with dimensions of 7.09 by 10.24 by 10.62 inches. The Power Queen listing states Group 31 size at 33.14 lb with dimensions of 13.0 by 6.77 by 8.5 inches, and the LGECOLFP listing states Group 31 size with dimensions of 12.8 by 6.7 by 8.4 inches and no weight stated. The LiTime 36V 50Ah listing states 39.42 lb, while the LiTime 36V 100Ah listing states 63.1 lb with dimensions of 20.47 by 10.55 by 8.66 inches. Measure the compartment against the stated dimensions before ordering, since Group size alone does not give the full length, width, and height.
Chargers, Bluetooth, and parallel expansion
Charger and monitoring details differ across the picks, and parallel expansion differs as well. The LiTime 36V 100Ah listing includes a 25A charger and Bluetooth 5.0 monitoring, and the LiTime 36V 50Ah listing includes a 43.8V 25A charger. The Power Queen listing states Bluetooth 5.0 monitoring, while the Dyness and LGECOLFP listings do not state Bluetooth monitoring or a charger in the box. For charger choices, see charger for 36 volt lithium batteries. On expansion, the Dyness listing states parallel connection up to four batteries for 220Ah and 8.4kWh, and states do not connect in series. The LGECOLFP, Power Queen, and LiTime 36V 50Ah listings state parallel expansion to 200Ah and 7.68kWh, while the LiTime 36V 100Ah listing states a 2S4P system up to 72V and 28,800Wh.
Sizing Notes
- Match the battery voltage to the trolling motor voltage: all picks here are 36V batteries for 36V trolling motors.
- Match BMS rating to the motor draw using the stated figures: 150A continuous for Dyness, 100A BMS for LiTime 36V 100Ah, 60A BMS for LiTime 36V 50Ah, and 50A continuous for Power Queen and LGECOLFP.
- Match physical size to the battery compartment using the stated dimensions and Group size: GC2 for Dyness, Group 31 for Power Queen and LGECOLFP.
- Match the charger to the battery using the charger stated in the listing: 25A for LiTime 36V 100Ah, 43.8V 25A for LiTime 36V 50Ah, and no charger stated for Dyness, Power Queen, and LGECOLFP.
- Match parallel expansion to the system using the stated figures: up to four batteries for Dyness, LGECOLFP, Power Queen, and LiTime 36V 50Ah, and a 2S4P system for LiTime 36V 100Ah.
FAQ: power away from the grid
What capacity should I choose for a 36 volt trolling motor?
The LiTime 36V 100Ah listing states 100Ah, the Dyness listing states 55Ah, and the other three listings state 50Ah each. Larger capacity means more stored energy in the listing figures, but check thrust and BMS current as well, since capacity alone does not set motor compatibility.
Do these batteries include a charger?
The LiTime 36V 100Ah listing includes a 25A charger, and the LiTime 36V 50Ah listing includes a 43.8V 25A charger. The Dyness, Power Queen, and LGECOLFP listings do not state a charger in the box, so check the listing before buying a charger separately.
Can I connect these batteries in parallel?
The Dyness listing states parallel connection up to four batteries for 220Ah and 8.4kWh, and states do not connect in series. The LGECOLFP, Power Queen, and LiTime 36V 50Ah listings state parallel expansion to 200Ah and 7.68kWh, while the LiTime 36V 100Ah listing states a 2S4P system up to 72V and 28,800Wh.
What warranty terms do these batteries state?
Four picks state a 5-year term: LiTime 36V 100Ah, Dyness, Power Queen, and LiTime 36V 50Ah. The LGECOLFP listing states a 12-month warranty term.
Related solar guides
See every LiFePO4 Batteries guide and all Batteries and Charging guides.
More picks: deep cycle battery for electric trolling motor, battery charger for trolling motor, LiFePO4 vs AGM battery for trolling motor.
