In the selection of high-power Electric Outboard Motor, power supply mode and battery compatibility directly determine installation flexibility, cruising range adaptability and overall use cost. As a flagship 12kW (equivalent to 24 HP) model of Fuber Propulsion, the Fuber G12 (Global 12) adopts a pure external power supply design with no built-in battery. It is delivered without a factory battery and requires an external battery pack for operation. Users can freely select and match compliant external batteries according to their needs, balancing flexible installation and personalized configuration.

1. Battery Configuration: Fully External Design, No Built-in Battery

The Fuber G12 Electric Outboard Motor features zero built-in lithium battery units and is supplied as a bare unit with no factory battery. This is a standard design for high-power outboard motors relying entirely on external power supply.

Body Structure: Weighing 68kg, the unit integrates a permanent magnet synchronous motor, electronic control module, heat dissipation system and high-voltage external power interface. There is no built-in battery compartment or internal battery cells, ensuring a compact and lightweight body suitable for various transom mounting spaces.

Power Interface: Equipped with a dedicated 96V high-voltage external battery port with waterproof aviation connectors, supporting single or multiple battery packs in parallel. Fully adapted to humid marine environments and splashing water, with an IP68 waterproof rating.

Design Concept: Unlike low-power models (such as the G3.0) with integrated built-in batteries, the G12 is engineered for both professional operation and recreational cruising. The fully external power solution allows flexible pairing with batteries from 50Ah to 200Ah, meeting diverse range demands while reducing overall weight and mechanical complexity for enhanced reliability.

2. Custom Battery Compatibility: Fully Supported with 3 Core Compliance Requirements

The Fuber G12 requires an external battery to operate, and users are fully allowed to install third-party custom batteries. However, three core principles must be strictly followed: precise voltage matching, compatible BMS communication and certified safety standards, to avoid system failure and potential safety hazards.

1. Precise Voltage Parameter Matching

The Fuber G12 operates on 96V DC, with an operating voltage range of 82V to 108V. Custom batteries must meet the following specifications:

Rated Voltage: 96V (32-cell LiFePO4 battery configuration, 3.2V per cell);

Continuous Discharge Current: ≥125A to match full-load operating current;

Peak Discharge Current: ≥200A to support instant high current during startup and acceleration.

Risks of Mismatched Voltage: Low voltage (48V/60V) causes failure to start or severe power attenuation; overvoltage (144V) will permanently damage the electronic control system.

2. Compatible Battery Protocol & BMS System

The G12 is equipped with Fuber self-developed intelligent BMS. Custom external batteries must satisfy:

Built-in standard CAN communication BMS for real-time data interaction including voltage, current, temperature and SOC;

Complete protection functions including overcharge, overdischarge, overcurrent, short circuit, high and low temperature protection, with threshold parameters matching the G12 control system.

Incompatible or non-communicating BMS will trigger system protection lockout and remove critical safety protection, leading to fire risks.

3. Qualified Battery Type & Safety Certification

Marine-grade certified LiFePO4 batteries are strongly recommended. Ordinary ternary lithium batteries and lead-acid batteries are prohibited:

Battery Type: LiFePO4 lithium iron phosphate battery, cycle life ≥2000 times, wide temperature resistance from -20℃ to 60℃, far safer than ternary lithium batteries;

Certification Standards: Compliant with IEC 62619, UL 1642 or marine CCS certification, meeting international marine safety regulations;

Installation Standard: External batteries shall be fixed in dry and ventilated cabin areas with full waterproof protection, kept away from high temperature and direct sunlight.

3. External Battery Selection: Capacity Matching for Different Scenarios

1. Daily Recreation (Fishing & Short-distance Cruising within 2 Hours)

Recommended Configuration: 96V 50Ah-80Ah LiFePO4 battery, single pack power supply;

Advantages: Light weight (40-60kg), easy installation and cost-effective, ideal for 3-8m leisure boats;

Cruising Reference: 50Ah for approx. 1.5 hours, 80Ah for approx. 2.5 hours at full speed.

2. Long-distance & Commercial Operation (Boat Fishing & Working Boats for 3-5 Hours)

Recommended Configuration: 96V 100Ah-150Ah single pack or dual 50Ah packs in parallel;

Advantages: Sufficient capacity for 3-5 hours continuous operation and cross-water navigation;

Cruising Reference: 100Ah for approx. 3 hours, 150Ah for approx. 4.5 hours at full speed.

3. Ultra-long Range (Professional Working Boats Over 5 Hours)

Recommended Configuration: Dual 80Ah-100Ah battery packs in parallel, total capacity 160Ah-200Ah;

Advantages: Extended cruising time of 5-8 hours to meet long-time operation demands in remote waters;

Note: Parallel batteries must be identical in brand, capacity and BMS protocol to avoid uneven current distribution.

4. Common Mistakes to Avoid When Customizing Batteries

Ignoring current parameters while only focusing on voltage: 96V batteries with continuous current below 125A will trigger overcurrent protection and power drop under full load;

Mixed battery combination: Old and new batteries or products with different BMS protocols connected in parallel cause unbalanced current, accelerated aging and battery swelling;

Poor waterproofing and heat dissipation: Unprotected external batteries lead to short circuit from water ingress; closed installation space causes high-temperature protection and reduced runtime;

Improper battery type selection: Lead-acid batteries feature heavy weight and short service life; ternary lithium batteries have poor high-temperature resistance and low safety for marine environments.

Summary

The Fuber G12 Electric Outboard Motor adopts a fully external power supply design with no built-in battery. Sold as a bare motor, it must be connected to a 96V external battery pack for normal use. Users are fully authorized to configure third-party batteries, with core requirements including 96V rated voltage, ≥125A continuous discharge current, CAN communication BMS and marine-grade LiFePO4 batteries. By selecting reasonable capacity and parallel solutions for daily leisure, commercial operation and ultra-long range scenarios, and avoiding parameter mismatch and installation errors, users can achieve stable, flexible and cost-effective power supply solutions.