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Hobiba D70L165 13KW 140KV Waterproof Marine Motor

Engineered for demanding underwater propulsion, the D70L165-140KV motor combines a 12N10P magnetic layout with a 70mm encapsulated core to deliver high torque and efficient power transfer. With a peak torque of 21 N·m and maximum output power of 10.5 kW, it reaches speeds up to 11,760 RPM, making it suitable for eFoil, hydrofoil, Jetboard, eSUP, and boat thruster applications. Rated IP68 for full submersibility, this motor ensures reliable operation in all water conditions.

• Peak Power: 10.5 kW • Peak Torque: 21 N·m • Max Speed: 11,760 RPM
• Protection Rating: IP68 • Weight: 3.3 kg

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System Types:
All
Kv:
100-150
Controller Type:
Sensorless
Maximum Voltage:
60V
Maximum Continuous Current:
< 120A

Hobiba D70L165 Motor 140KV Waterproof Electric Motor 13KW Marine Motor Waterproof Boat Motor High Torque Watercraft Motor D70L165 140KV Motor

Features

Specification

Dyno Tested Data

Dimension

Key Features

Corrosion-resistant anodized aluminum construction
High torque with optimized energy efficiency
Quiet, low-vibration performance
Efficiency up to 91%Compact and lightweight design
Long-life double-sealed bearings Stainless steel SS316 shaft
Designed for permanent underwater operation

Parameter	Value
Model	D70L165-140
Working Voltage Range	10-20S (32-84V)
Max Free Speed (rpm)	11760
Speed Constant (Kv)	140
No-Load Current @ 8.4V (A)	2.1
Torque Constant (N·m/A)	0.0791
Max Output Power (kW)	10.5
Peak Torque (N·m)	21
Peak Current (A)	280
Continuous Current (A)	120
Max Motor Efficiency (%)	91.0
Weight (kg)	3.3
Configuration	Outrunner
Dimensions (mm)	D70 × L165
Output Shaft	D12 × 34mm
Insulation Voltage & Leak Current	8 MΩ @ 500V
Lead Wires Extension	10mm plug
Life Span (hours)	10,000
Max Working Temperature (°C)	120
Important Notice	Motor must be fully submerged in water during operation.

Dyno Tester Report

D70L165-140Kv at 48V
No.	C_Voltage (V)	C_Current (A)	C_Input Power(W)	M_Voltage (V)	M_Current (A)	M_Input Power (W)	M_Efficiency (%)	M_Speed (rpm)	M_Torque (N*m)	M_Output Power(W)
0	48.259998	44.970001	2169.830078	36.029999	38.049999	2161.820068	89.147766	6251	2.944004	1927.214355
1	48.200001	58.740002	2830.52002	35.810001	50.119999	2813.5	89.925957	6052	3.992004	2530.066895
2	48.130001	73.5	3537.030029	35.599998	63.43	3497.929932	89.689362	5842	5.128004	3137.270996
3	48.07	86.669998	4165.600098	35.439999	75.620003	4106.75	89.044525	5654	6.176004	3656.835938
4	48.02	99.5	4775.830078	35.299999	87.730003	4695.27002	87.92218	5475	7.200004	4128.183594
5	47.950001	112.349998	5385.25	35.189999	100.059998	5279.120117	86.415932	5297	8.224004	4562.000977
6	47.900002	123.699997	5923.669922	35.099998	110.980003	5790.97998	84.829033	5139	9.128004	4912.432129
7	47.849998	137.779999	6589.870117	35	124.699997	6420.439941	82.526291	4941	10.240005	5298.550781

Underwater test with Prop.

42V underwater testing with various Throtlle(Prop. EP150 )
Date	Item	Votale (V)	Current (A)	Input-Power (W)	Speed (RPM)	Thrust (kgf)	Throttle(%)	(Kgf/kw)
24/4/27	1	42	3	126	718	4.0	20	31.75
	2	42	11	462	1125	9.6	30	20.78
	3	42	24	1008	1413	13.8	40	13.69
	4	42	45	1890	1665	20.8	50	11.01
	5	42	69	2898	1864	27.2	60	9.39
	6	42	92	3864	2072	34.5	70	8.93
	7	42	123	5166	2284	38.7	80	7.49
	8	42	154	6468	2359	43.1	90	6.66

42V underwater testing with various Throtlle(Prop. i7)
Date	Item	Votalge (V)	Current (A)	Input Power (W)	Speed (RPM)	Thruster (kgf)	Throttle (%)	(Kgf/kw)
24/4/27	1	42	3	126	695	5.1	20	40.48
	2	42	11	462	1064	13.2	30	28.57
	3	42	26	1092	1388	21.5	40	19.69
	4	42	47	1974	1607	30.9	50	15.65
	5	42	74	3108	1774	35.7	60	11.49
	6	42	98	4116	1982	40.2	70	9.77
	7	42	127	5334	2095	45.9	80	8.61
	8	42	181	7602	2201	52.4	90	6.89

42V underwater testing with various Throtlle(Prop. 7⅜X5⅜ )
Date	Item	Votale (V)	Current (A)	Input-Power (W)	Speed (RPM)	Thrust (kgf)	Throttle(%)	(Kgf/kw)
24/4/27	1	42	2	84	735	5.1	20	60.71
	2	42	9	378	1154	12.3	30	32.54
	3	42	21	882	1533	20.6	40	23.36
	4	42	38	1596	1788	30.5	50	19.11
	5	42	57	2394	2057	36.4	60	15.20
	6	42	82	3444	2345	42.5	70	12.34
	7	42	117	4914	2422	52.5	80	10.68
	8	42	161	6762	2558	63.6	90	9.41