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Advanced alternator regulation

Wakespeed

Alternator regulators for controlled high-output charging

Explore Wakespeed regulators, harnesses, sensors and communication accessories.

Optimise high-output alternators with Wakespeed WS500 regulators, wiring harnesses, and precision temperature sensors.

Quick alternator charge check

Estimate alternator recharge time

Enter the Ah to replace, the regulated charge current, bank voltage and battery chemistry. The estimate also shows the continuous output the alternator must sustain.

Ah
Approximate battery capacity that needs replacing.
A
The regulator's current limit, kept within the alternator's hot rating.
bank
Nominal voltage of the battery bank.
98%
Simple allowance for theoretical charge time.
Estimated theoretical recharge time
2.6 hours Strong charge

80A into a 12V bank charging at 14.4V is about 1.2 kW of continuous alternator output. Set the regulator's current limit within the alternator's hot rating and the battery and BMS maximum charge current.

Estimate only: Ah ÷ (regulated charge current × chemistry efficiency). Output uses a typical charging voltage of 1.2 × nominal bank voltage (14.4V on a 12V bank) × charge current. Real charging varies with engine speed, alternator temperature and derating, belt and pulley limits, battery acceptance and connected loads. Set the regulator within the alternator, battery and BMS maximum ratings.

Wakespeed regulators and accessories

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From the Solar 4 RVs library

Wakespeed alternator charging guides

Guides on battery limits, alternator control, sensors and cable for planning the charging system.

About this range


Wakespeed WS500 Alternator Regulators & Accessories

Maximise the charging efficiency of your marine, RV, or off-grid 4WD power system with our comprehensive range of Wakespeed components. The Wakespeed WS500 is recognised as one of the most advanced alternator regulators on the market, specifically designed to protect your high-output alternator while delivering optimal charge profiles for modern battery chemistries, including lithium (LiFePO4). By actively monitoring battery voltage, current, and temperature, Wakespeed systems ensure your off-grid electrical setup operates safely and efficiently.

Advanced Alternator Control for Lithium Batteries

Upgrading to a high-capacity lithium battery bank often reveals the limitations of standard factory alternators. Without intelligent regulation, alternators can quickly overheat and fail when tasked with delivering continuous high currents to a deeply discharged lithium bank. The lithium compatible alternator regulators from Wakespeed solve this problem by continuously monitoring alternator temperature and modulating output to prevent thermal damage.

With built-in CANBus connectivity, the WS500 communicates directly with your Battery Management System (BMS) and other network devices, such as Victron Energy systems, ensuring charge rates are perfectly synchronised with your battery’s exact requirements.

Our Wakespeed Product Range

Whether you are outfitting a new boat, upgrading a 4WD canopy, or refining your caravan power system, we carry the essential components required for a complete, professional installation:

  • WS500 Pro Bluetooth Alternator Regulators: The core control unit featuring Bluetooth connectivity for straightforward configuration and monitoring via a smartphone app.
  • Wiring Harnesses: Ready-to-install P-type and N-type wiring harnesses, including extended variants and options with integrated CANBus or NMEA2000 M12 connectors for marine networks.
  • Temperature Sensors: High-accuracy battery and alternator temperature sensors available in 0.3m, 3m, and 8m lengths to suit any engine bay or battery compartment layout.
  • Crossover Cables & Covers: Specific 2m CANBus to Victron crossover cables for seamless system integration, alongside durable waterproof covers to protect your regulator in harsh environments.

For additional mounting and wiring components, explore our wider selection of alternator regulator accessories to complete your setup.

Compatibility Notes

Correctly configuring your Wakespeed WS500 requires matching the regulator and harness to your specific alternator and battery system. The WS500 is compatible with 12V, 24V, and 48V systems, automatically scaling its charge profiles based on your configuration. When selecting a wiring harness, you must confirm whether your alternator is P-type (positive switching) or N-type (negative switching) to ensure proper field control. For advanced setups communicating with a Victron Cerbo GX or BMS, ensure you select a harness equipped with CANBus leads and the appropriate crossover cables.

If you are troubleshooting an existing installation, you can refer to our guide on Wakespeed WS500 Error Codes or read through the Wakespeed WS500 buyer's guide for further technical insights on alternator regulators.

As an Australian Family Business with a decade of experience in off-grid and mobile power, we are committed to providing high quality products tailored to your exact needs. We offer comprehensive before & after support to ensure your alternator upgrade is a success, backed by fast dispatch across the country. Browse our selection of Wakespeed regulators and harnesses below to upgrade your charging system and travel with complete confidence.

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