Rhodan Marine Legacy HD GPS ANCHOR+ (12, 24 or 36 V)

rhodanmarine.com/gps-guided-trolling-motors

Last updated: 21 September 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, 5 of them needing more than one pack in series.
Published as 0-42 Amps, reaching the maximum at 100% thrust · 120 lb at 36 V, 80 lb at 24 V, 55 lb at 12 V.
Specifications are published for it, each with its source.

At a glance

System voltage 36 VPeak draw 0-42 Amps36V System @ 120lb thrust

That is a peak, not a continuous rating. The maker publishes no continuous draw for this — see below for what they say about it — so a pack sized on the figure above is sized for the worst moment rather than for the load it will hold.

The maker’s own installation requirements: 50 Amps recommended. A battery that meets the draw does not make the wiring optional.

What this device draws

Max amp draw: 0-42 Amps, reaching the maximum at 100% thrust
Input voltage it accepts: 12 V, 24 V or 36 V
Max thrust: 120 lb at 36 V, 80 lb at 24 V, 55 lb at 12 V
Continuous draw: A maximum at full thrust; no continuous rating
Propeller fitted: 3 Blade Weedless

What battery it needs

Circuit breaker it requires: 50 Amps, which Rhodan call recommended

Other findings

Chartplotter integration: Serial R587363 or higher, to Simrad, Raymarine and Lowrance
Gateway warning: The boat can move unexpectedly; the captain keeps control

Certification claims

FCC identifier: XA7-RMS-FOB1

Batteries documented to run this

Every row below is for this trolling motor wired at 36 V. It is also documented at 12 V and 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 within LiTime's ceiling of 120 lb of thrust for a 36 volt motor on three packs in series, and this motor's 120 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 120 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.

LiTime 12V 100Ah TMFigures comparedView battery: LiTime 12V 100Ah TM →
Three of these, identical to each other, wired in series for 36 V.
“This product is suitable for 12V trolling motors up to 70 lb thrust; 2*identical batteries in series for 24V trolling motors up to 100 lb thrust; 3*identical batteries in series for 36V trolling motors up to 120 lb thrust.”
LiTime 12.8V 100Ah Trolling Motor Battery — Product ManualManufacturer document
LiTime
Source: cdn.shopify.com/s/files/1/0667/7220/5788/files/LiTime_12.8V_100Ah_Trolling_Motor_Battery_-_User_Manual.pdf
Retrieved September 11, 2026
LiTime 12V 100Ah TM SmartFigures comparedView battery: LiTime 12V 100Ah TM Smart →
Three of these, identical to each other, wired in series for 36 V.
LiTime 12.8V 100Ah Trolling Motor Smart Battery — User ManualManufacturer document
LiTime
Source: cdn.shopify.com/s/files/1/0667/7220/5788/files/LiTime_12.8V_100Ah_Trolling_Motor_Smart_Battery_-_User_Manual.pdf
Retrieved September 11, 2026
LiTime 36V 50Ah TMFigures comparedView battery: LiTime 36V 50Ah TM →
One of these, on its own, at 36 V.
“This product is suitable for 36V trolling motors up to 120lb thrust.”
Only within LiTime's ceiling of 120 lb of thrust for a 36 volt motor, and this motor's 120 lb is within it — check yours before buying.
LiTime 36V 50Ah TM — Product ManualManufacturer document
LiTime
Source: cdn.shopify.com/s/files/1/0667/7220/5788/files/LiTime_38.4V_50Ah_Trolling_Motors_Smart_Battery_-_User_Manual.pdf
Retrieved September 11, 2026
LiTime 12V 50Ah TMFigures comparedView battery: LiTime 12V 50Ah TM →
Three of these, identical to each other, wired in series for 36 V.
LiTime 12V 50Ah TM — Product ManualManufacturer document
LiTime
Source: cdn.shopify.com/s/files/1/0667/7220/5788/files/LiTime_12V_50Ah_Trolling_Motor_Smart_Battery_-_User_Manual.pdf
Retrieved September 11, 2026
Redodo 12V 100Ah Group31 BluetoothFigures comparedView battery: Redodo 12V 100Ah Group31 Bluetooth →
Three of these, identical to each other, wired in series for 36 V.
“One 12V 100Ah Smart Bluetooth Marine for Trolling Motor battery is suitable for 12V trolling motors up to 70 lbs thrust; 2*identical batteries in series for 24V trolling motors up to 100 lbs thrust; 3*identical batteries in series for 36V trolling motors up to 120 lbs thrust.”
Redodo 12V 100Ah Group 31 Bluetooth Battery — Product ManualManufacturer document
Redodo
Source: cdn.shopify.com/s/files/1/0561/7641/0714/files/Redodo_12V_100Ah_Group31_Bluetooth_Battery.pdf?v=1756804417
Retrieved September 12, 2026
Dakota Lithium 36V 60AhFigures comparedView battery: Dakota Lithium 36V 60Ah →
One of these, on its own, at 36 V.
“With 60Ah capacity, it suits 36V trolling motors with up to 120 lbs of thrust.”
Only within Dakota Lithium's ceiling of 120 lb of thrust for a 36 volt motor, and this motor's 120 lb is within it — check yours before buying.
Dakota Lithium — 2024 Product CatalogManufacturer document
Dakota Lithium
Source: dakotalithium.com/wp-content/uploads/2024/10/Dakota-Lithium-Catalog-20241014-compressed.pdf
Retrieved September 12, 2026
Redodo 12V 100Ah Trolling MotorFigures comparedView battery: Redodo 12V 100Ah Trolling Motor →
Three of these, identical to each other, wired in series for 36 V.
“One 12V 100Ah LOW-TEMP battery is suitable for 12V trolling motors up to 70 lbs thrust; 2*identical batteries in series for 24V trolling motors up to 100 lbs thrust; 3*identical batteries in series for 36V trolling motors up to 120 lbs thrust.”
Redodo 12V 100Ah Low-Temp Trolling Motor Battery — Product ManualManufacturer document
Redodo
Source: cdn.shopify.com/s/files/1/0561/7641/0714/files/Redodo_12V_100Ah_low_temp_lithium_trolling_motor_battery_product_manual.pdf?v=1715855487
Retrieved September 12, 2026

Sources

Archived document
Source: rhodanmarine.com/images/uploaded/Gateway Owners Manual (Raymarine, Simrad, Lowrance).pdf
Retrieved September 13, 2026
Archived document
Source: rhodanmarine.com/images/uploaded/rms_manual_022124a CURRENT.pdf
Retrieved September 13, 2026