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Garmin Force (20–45 V, 50" and 57" shafts)

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The Garmin Force (20–45 V, 50" and 57" shafts) is a trolling motor with a peak draw of 60 A, a continuous draw of 60 A, a stated minimum of 100 Ah for lead-acid or AGM and a recommended capacity of 50–100 Ah.

Last updated: 11 October 2026

What we found

  • Battery models are matched as running it across several brands, by setting each maker's published figures against the other — neither names the pairing, 15 of them needing more than one pack in series.
  • Marine-grade deep-cycle; lithium generally preferred.
  • 3 batteries are compared as NOT suitable for it: Dakota Lithium 12V 54Ah, Dakota Lithium 12V 46Ah Deep Cycle U1, Renogy 12V 20Ah Deep Cycle, by setting each maker's published figures against the other — neither names the pairing.
  • Published as 60 A continuous, on 20–45 V · 100 lbf at full throttle on a 36 V bank.
  • Specifications are published for it, each with its source.

At a glance

System voltage 36 VContinuous draw 60 A continuousPeak draw 60 A continuous445 N (100 lbf) thrust

The maker’s own installation requirements: 42 VDC or greater, suitable for 60 A continuous (not to exceed 90 A). A battery that meets the draw does not make the wiring optional.

What this device draws

Max amp draw
60 A continuous, on 20–45 V

“Input voltage From 20 to 45 Vdc Input amperage 60 A continuous”

Source: www8.garmin.com/manuals/webhelp/forcetrollingmotor/EN-US/Force_Trolling_Motor_OM_EN-US.pdf

Continuous draw the maker states
60 A continuous

“Input amperage 60 A continuous”

Source: www8.garmin.com/manuals/webhelp/forcetrollingmotor/EN-US/GUID-7EE20A35-4E0F-4E6A-89E5-270C5C907E3F.html

Input voltage it accepts
20 to 45 V dc

“Input voltage From 20 to 45 Vdc”

Source: www8.garmin.com/manuals/webhelp/forcetrollingmotor/EN-US/GUID-7EE20A35-4E0F-4E6A-89E5-270C5C907E3F.html

Power drawn at full throttle
Full power: 2160 W

“Main power usage at 36 Vdc 60 A Off: 72 mW Full power: 2160 W”

Source: www8.garmin.com/manuals/webhelp/forcetrollingmotor/EN-US/GUID-7EE20A35-4E0F-4E6A-89E5-270C5C907E3F.html

How precise the maker says these figures are
±7 N and ±5 A, and no standard named

“These values assume you are using an official Garmin ® high efficiency propeller, in relatively calm water, with the motor deployed deeply enough not to ventilate, and with tolerances of ±7 N (Newton) (5 lbf (pound-force)) and ±5 A.”

Source: www8.garmin.com/manuals/webhelp/forcetrollingmotor/EN-US/GUID-9BEB843E-2C2B-450E-B9B2-F4C9F29D0C2E.html

What it draws at half throttle
Half throttle on 24 V draws 14 A, against 57 A flat out

“50% 140 N (31 lbf) 14 A”

Source: www8.garmin.com/manuals/webhelp/forcetrollingmotor/EN-US/GUID-9BEB843E-2C2B-450E-B9B2-F4C9F29D0C2E.html

Max thrust
100 lbf at full throttle on a 36 V bank

“100% 445 N (100 lbf) 54 A”

Source: www8.garmin.com/manuals/webhelp/forcetrollingmotor/EN-US/GUID-9BEB843E-2C2B-450E-B9B2-F4C9F29D0C2E.html

What battery it needs

Torque for the battery terminal nuts
3 ft-lbs (4 N·m), 10 mm socket

“If you have a torque wrench (recommended), you should tighten the nuts to 3 ft-lbs (36 in-lbs) (4 N-m).”

Source: www8.garmin.com/marine/notices/Force_Trolling_Motor_Service_Alert_June_2020.pdf

Current the battery must be able to supply
At least 60 A continuous, whatever the chemistry

“Regardless of battery type, the battery must be capable of supplying at least 60 A of continuous current.”

Source: support.garmin.com/en-US/?faq=ZY96utROfo8AdOceNXevU8

Amp-hours the maker names for lead acid
100 Ah for lead-acid or AGM

“Lead-acid or AGM batteries: 100 Ah minimum”

Source: support.garmin.com/en-US/?faq=ZY96utROfo8AdOceNXevU8

Battery type the maker recommends
Marine-grade deep-cycle; lithium generally preferred

“For best results, use a marine-grade deep-cycle battery designed for trolling motor applications. Lithium batteries are generally preferred because of their weight, performance, and charging characteristics, but the ideal battery depends on the specific vessel and installation. Consult the boat manufacturer or dealer for recommendations suited to your setup.”

Source: support.garmin.com/en-US/?faq=ZY96utROfo8AdOceNXevU8

Amp-hours the maker recommends
50–100 Ah for lithium

“Lithium batteries: 50 Ah to 100 Ah”

Source: support.garmin.com/en-US/?faq=ZY96utROfo8AdOceNXevU8

Whether it can run on lithium
Supported, and preferred by the maker

“For best results, use a marine-grade deep-cycle battery designed for trolling motor applications. Lithium batteries are generally preferred because of their weight, performance, and charging characteristics, but the ideal battery depends on the specific vessel and installation.”

Source: support.garmin.com/en-US/?faq=ZY96utROfo8AdOceNXevU8

Circuit breaker it requires
42 V+, 60 A continuous — up to 90 A with conditions

“42 VDC or greater, suitable for 60 A continuous NOTE: You can protect the system by using a larger circuit breaker, not to exceed 90 A, if you are operating under high temperatures or if you are sharing the circuit with other devices. You should verify that your boat wiring meets marine wiring standards using a larger breaker before changing it.”

Source: www8.garmin.com/manuals/webhelp/forcetrollingmotor/EN-US/Force_Trolling_Motor_OM_EN-US.pdf

Size and fit

Stated weight
50 in. model: 30 kg (66 lb.)

“Weight (motor, mount, and cables) 50 in. model: 30 kg (66 lb.) 57 in. model: 31.75 kg (70 lb.)”

Source: www8.garmin.com/manuals/webhelp/forcetrollingmotor/EN-US/GUID-7EE20A35-4E0F-4E6A-89E5-270C5C907E3F.html

Cable Garmin supply
50 in. model: 1.2 m (4 ft.) 57 in. model: 1.1 m (3.5 ft.)

“Power cable length 50 in. model: 1.2 m (4 ft.) 57 in. model: 1.1 m (3.5 ft.)”

Source: www8.garmin.com/manuals/webhelp/forcetrollingmotor/EN-US/GUID-7EE20A35-4E0F-4E6A-89E5-270C5C907E3F.html

Identity

Whether it is still made
Discontinued; superseded by the Force Pro

“Discontinued”

Source: garmin.com/en-US/p/610376/pn/010-02024-00

Recalls and fire safety

Recall notice the manufacturer published
Service Alert 2076 — three issues, all mandatory

“Garmin has received a small number of reports indicating the Force Trolling Motor may move the boat unexpectedly and quickly when the anchor lock feature is engaged This can be caused by 1) the coil cable being tightly compressed between the steering housing and the shaft cap, or 2) the motor shaft being out of alignment.”

Source: www8.garmin.com/marine/notices/Force_Trolling_Motor_Service_Alert_June_2020.pdf

What to do until it is remedied
Disconnect from the battery before servicing

“You must disconnect the motor from the battery before servicing the trolling motor to avoid causing an electrical short. When stowing or deploying the motor and when working on the power-cable terminals, be aware of the risk of entrapment or pinching from moving parts, which can result in injury.”

Source: www8.garmin.com/marine/notices/Force_Trolling_Motor_Service_Alert_June_2020.pdf

What the breaker is there to limit
The breaker is what bounds the fire risk

“Garmin has determined the nuts on the power terminals of the trolling motor may not be fully tightened. In certain situations, this can cause heat to build up on the power cable, which could lead to a brief electrical fire on the wire insulation. As mandated in the Force Trolling Motor Installation Instructions, you must install a proper circuit breaker, which can limit heat buildup after the breaker trips. It should also be noted that the wire insulation is flame retardant and self-extinguishing. These factors help limit the scope and duration of any potential brief electrical fire.”

Source: www8.garmin.com/marine/notices/Force_Trolling_Motor_Service_Alert_June_2020.pdf

Water ingress notice
Seal replacement, free — Service Alert 20121

“In certain rare situations, especially during or after use in salt water, water may enter the cable-junction box and could lead to a brief electrical fire. Note that the cable-junction box materials are flame retardant and self-extinguishing. These factors help limit the scope and duration of any potential brief electrical fire.”

Source: www8.garmin.com/marine/notices/Service_Alert_Force_Trolling_Motor_US.pdf

What the manufacturer says went wrong
the nuts on the power terminals of the trolling motor may not be fully tightened. In certain situations, this can cause heat to build up on the power cable, which could lead to a brief electrical fire on the wire insulation

“Garmin has determined the nuts on the power terminals of the trolling motor may not be fully tightened. In certain situations, this can cause heat to build up on the power cable, which could lead to a brief electrical fire on the wire insulation.”

Source: www8.garmin.com/marine/notices/Force_Trolling_Motor_Service_Alert_June_2020.pdf

Units the manufacturer's notice covers
The Force 50" and 57"; no later motor is named

“PRODUCTS AFFECTED Force Trolling Motor, 50” and 57” models.”

Source: www8.garmin.com/marine/notices/Force_Trolling_Motor_Service_Alert_June_2020.pdf

Remedy the manufacturer offers
Free, by the owner or a dealer; 1 hour reimbursed

“Customers: You can resolve these issues by following the directions below, or an authorized Garmin dealer or service center can resolve these issues under warranty. Dealers: Garmin will reimburse up to 1 hour of labor to resolve these issues.”

Source: www8.garmin.com/marine/notices/Force_Trolling_Motor_Service_Alert_June_2020.pdf

Other findings

Battery gauge is wrong on lithium
The motor's own gauge misreads a lithium pack

“Battery level indicators are optimized for lead-acid batteries and may be inaccurate for other types of batteries such as lithium-ion.”

Source: www8.garmin.com/manuals/webhelp/forcetrollingmotor/EN-US/Force_Trolling_Motor_OM_EN-US.pdf

Circuit breaker part number
Garmin part 010-12832-40

“60 A circuit breaker accessory 010-12832-40 Instructions are provided with the circuit breaker. Not shown Power cable plug accessory 010-12832-41”

Source: static.garmin.com/pumac/force_trolling_motor_field_service_manual_en.pdf

Power cable gauge
6, 4 or 2 AWG, sized from the run

“Circuit breaker rated for continuous 60 A • Trolling motor plug and receptacle rated for 60 A or greater (optional) • 6, 4, or 2 AWG (16, 25, or 35 mm 2 ) wire for extended runs of the power cable”

Source: static.garmin.com/pumac/Force_Trolling_Motor_Install_Instructions_EN-US.pdf

Propeller nut torque
8.13 N·m (6 lb-ft), 9/16 in socket

“Using a 9 / 16 in (15 mm) socket, tighten the nut to 8.13 N-m (6 lbf-ft).”

Source: static.garmin.com/pumac/force_trolling_motor_field_service_manual_en.pdf

Batteries documented to run this

Every row below is for this trolling motor wired at 36 V. It is also documented at 24 V, and a battery maker’s fitment rule is written per voltage. It turns on the thrust at the voltage the motor is actually wired for, and we hold one thrust figure for this trolling motor — the one at 36 V. So the other configurations are not answered here rather than answered no.

The figures below line up. Neither manufacturer states that this pack runs this device — that is our reading of what each of them published separately, not a claim by either of them or a test by us. Even where every stated figure agrees, these can still decide it:

  • The device’s published draw is usually a peak, not the load it holds — the two numbers are not the same kind of quantity
  • A maker’s amp-hour minimum and their reserve-capacity minimum can give different answers about the same battery
  • Conditions attached to the chemistry, such as a speed limit for running on lithium
  • Whether the pack may be wired in series at all, where the device needs 24 or 36 volts
  • The charger, which both makers put conditions on and neither supplies
  • Case size, hold-down and terminal type — fitting the space is not being secured in it

Worth confirming with the device's manufacturer or a dealer before buying.

“This product is suitable for 12V trolling motors up to 70lb thrust; 2*identical batteries in series for 24V trolling motors up to 100lb thrust; 3*identical batteries in series for 36V trolling motors up to 120lb thrust.”

Only at 36 volts, and on published figures — neither maker has named the other and nobody has tested this pairing — check yours before buying.

Only within LiTime's ceiling of 120 lb of thrust for a 36 volt motor on three packs in series, and this motor's 100 lb is within it — check yours before buying.

Only within Redodo's ceiling of 120 lb of thrust for a 36 volt motor on three packs in series, and this motor's 100 lb is within it — check yours before buying.

The packs must be identical to each other — the maker's rule says so, and mixing capacities or ages in series is how one cell group ends up carrying the bank.

The motor's maker asks for 100 Ah minimum for a lead-acid or AGM battery, and 50 Ah to 100 Ah where the battery is lithium, and the battery must be able to supply 60 A of continuous current.

Which of the two figures applies turns on what is inside this pack, and its chemistry is not published in anything we hold — so the stricter one is used.

The pack's maker permits the series wiring this needs: "Max.

This pack is rated 100 Ah and 100 A continuous.

The pack's maker permits the series wiring this needs: "In Series, and In Parallel (up to 4) — Renogy state series support without naming a limit".

The pack's maker permits the series wiring this needs: "Series & Parallel (4S8P)".

The pack's maker permits the series wiring this needs: "Series & Parallel (4S4P)".

This pack is rated 200 Ah and 200 A continuous.

The battery maker's thrust rule covers this motor, but the motor's own documentation asks for 60 A continuously and this pack is rated for 50 A.

Both statements are recorded; neither has been resolved in favour of the other.

Batteries documented as NOT sufficient

The motor's maker asks for 100 Ah minimum for a lead-acid or AGM battery, and 50 Ah to 100 Ah where the battery is lithium, and the battery must be able to supply 60 A of continuous current.

Which of the two figures applies turns on what is inside this pack, and its chemistry is not published in anything we hold — so the stricter one is used.

The pack's maker permits the series wiring this needs: "not intended or warrantied for serial wiring applications above 48V — three of these packs is 38.4 V, four would be 51.2 V".

Sources

  • Archived document

    Source: www8.garmin.com/manuals/webhelp/forcetrollingmotor/EN-US/Force_Trolling_Motor_OM_EN-US.pdf

    Retrieved September 13, 2026

  • Battery Recommendations For the Force Trolling Motor | Garmin Customer SupportArchived document

    Source: support.garmin.com/en-US/?faq=ZY96utROfo8AdOceNXevU8

    Retrieved September 13, 2026

  • Archived document

    Source: www8.garmin.com/marine/notices/Force_Trolling_Motor_Service_Alert_June_2020.pdf

    Retrieved September 13, 2026

  • Archived document

    Source: static.garmin.com/pumac/force_trolling_motor_field_service_manual_en.pdf

    Retrieved September 13, 2026

  • Force Trolling Motor Owner's Manual - Trolling MotorArchived document

    Source: www8.garmin.com/manuals/webhelp/forcetrollingmotor/EN-US/GUID-7EE20A35-4E0F-4E6A-89E5-270C5C907E3F.html

    Retrieved September 13, 2026

  • Force Trolling Motor Owner's Manual - Motor Thrust and Current-Draw InformationArchived document

    Source: www8.garmin.com/manuals/webhelp/forcetrollingmotor/EN-US/GUID-9BEB843E-2C2B-450E-B9B2-F4C9F29D0C2E.html

    Retrieved September 13, 2026

  • Archived document

    Source: static.garmin.com/pumac/Force_Trolling_Motor_Install_Instructions_EN-US.pdf

    Retrieved September 13, 2026

  • Garmin Force® Trolling Motor | 50” Freshwater Trolling MotorArchived document

    Source: garmin.com/en-US/p/610376/pn/010-02024-00

    Retrieved September 13, 2026

  • Archived document

    Source: www8.garmin.com/marine/notices/Service_Alert_Force_Trolling_Motor_US.pdf

    Retrieved September 13, 2026