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WS500 Smart Regulator

(4 customer reviews)

From: $539.95

Bonus !! Buy One and get the WS500 configuration Tool Free, a $ 24.95 value!  Buy two and get the Pro version Free,  a $ 149.95 value!
And if you build it as a kit you save 10% on all accessories !!

The WS500 is a next generation Smart Regulator for Marine, Off-grid and RV applications. It is ideally suited to the latest in battery technology and includes CANBus and NMEA2k communications to integrate into an overall Energy Management Network and the REC BMS product line.  Select your Wiring harness based on whether you need positive or negative type alternator excitation.

Scroll down to select your options:

The WS500 is the only alternator regulator available that can utilize current, voltage and temperature to deliver the most precise and effective charging possible for 12V, 24V and 48V battery systems – with configurability for voltages in between – making it the perfect solution for charging lead acid based, or new generation LiFePo4 lithium ion battery banks.

Developed during years of cruising in the Pacific Northwest, the WS500 is uniquely designed to be configured via easy-to-use onboard DIP switches, or can be connected to a PC to provide more than 100 user controls. The WS500 can also be connected to battery BMS modules other CAN J1939 devices through its data ports, making it the only regulator of choice to provide safe and smart charging for LiFeP04 and other emerging battery technologies.

The WS500 can be connected to a current shunt to monitor current flow to and from the batteries, enabling the regulator to control charging based on a combination of system voltage and amperage delivered from the alternator to the batteries. In addition, the WS500 can also monitor alternator and battery temperatures and modify charging output to ensure optimal safety and charging performance at the alternator and batteries. When connected to a BMS system such as REC-BMS, the WS500 can receive critical voltage, current and temperature data via the CAN J1939 pathway, reducing the need for external sensor connections.

The regulator’s auto-detect function identifies system voltage and automatically adjusts charging to support 12V, 24V and 48V profiles. Default profiles for eight battery types can be configured at the regulator via the DIP switches.  Selectable profiles include programs for standard and deep cycle flooded lead acid, standard and high-density AGM batteries, carbon foam AGM (Firefly), Gel, and LiFeP04. Two profiles allow for the flexibility to customize profiles with a PC, using the WS500 Configuration Tool or a terminal program like Putty. Support for non-common battery voltages (such as 32v) may also be configured in the same way.

The WS500 can be used with different polarity alternators by selecting the appropriate N-Type or P-Type regulator wiring harness. Wiring harnesses are equipped with high-quality Ampseal connectors and provide all connections for basic operation, as well as dedicated connection wires for voltage and current sensing.

The Wakespeed® Offshore WS500 voltage regulator features an industry-leading two-year limited warranty.

Wakespeed’s WS500 Advanced Alternator Regulator was designed and is manufactured in Washington State in the United States of America. Wakespeed’s circuit assembly facility is ISO9001 certified in accordance with AS9104 standards.

Weight 2 kg
Dimensions 30 × 30 × 15 cm

Shipping Notes for Wakespeed Devices

This product ships direct from the Manufacturer in WA, USA.  HST will not be included in this order but will be charged by USPS/Canada Post upon delivery.  Duties “should” not apply as this is a product of USA.

Product Downloads

WakeSpeed Communications and Programming Manual

WakeSpeed QuickStart Guide

WS500 quick start card


Alternator Windings, how to determine polarity.

How to determine whether your alternator uses positive or negative excitation.

Regulators and field windings have two possible field polarities. It is important to know the difference when installing different regulators or testing regulator function. The two types are as follows:

Positive Polarity. The positive regulator controls a positive excitation voltage. Inside the alternator, one end of the field is connected to the negative polarity. Alternators with this configuration include Bosch, Motorola, Ingram, Sev-Marchal (older models), Silver Bullet, Lestek, Balmar:

To test polarity of an alternator you will need a multi-meter set to the ohms x 1 range and connect across the field connection to an unpainted part of the alternator case or negative output terminal.  Second, disconnect your field and power wires.

Your meter reading should be in the range of 3 to 8 ohms.

Negative Polarity. A negative regulator controls a negative excitation voltage. Inside the alternator, one end of the field is connected to the positive polarity. Alternators with this configuration include Hitachi, Lucas A127, ACR 17-25, and AC5, CAV, Paris-Rhone, new model Sev-Marchal, and Valeo, AC Delco, Mitsubishi:

To test polarity of an alternator you will need a multi-meter set to the Ohms x 1 range and connect across the field connection to the alternator’s positive terminal.

Your meter reading should be in the range of 3 to 8 Ohms.


4 reviews for WS500 Smart Regulator

  1. Andy

    Now my issues seem to have settled I love the gear. Easy to configure and fairly easy to install. The fact that I can now fire up both engines and see nearly 200 amps flowing to the LifePO4 batteries is just awesome. The ability to control the alternators to such a granular level is so far above anything else I can find on the market. The Ws500 and it’s feature in control, for my installation, has allowed me to solve the last hurdle I had with my LifePO4 installation. Great product and awesome support.

  2. Steve Mitchell

    I absolutely love my WS-500’s. I have been using them for 8 months and they have been flawless. I have two of them, paired with two XT-175 Balmar alternators on two main engines. Both are setup to charge the same house bank, and the features that the WS-500 has make that efficient and safe. The dual regulator configuration is simple, and the idle throttling is amazing even on large engines. You can read my full review at https://seabits.com/wakespeed-ws-500-regulator-review/

  3. Daniel Carlson (verified owner)

    I installed the WS500 on my Amel SuperMaramu to control the 24v alternator charging the 300 AH LiFePO4 house bank. The pre-programmed Li profile has a dip switch that allows you to limit the alternator to 75% output. And even better is the switch you can add that immediately switches the charge to 26.72v “float”. This still charges the battery bank up to about 80% in a few hours without the initial heavy load on the alternator, but gives great peace of mind when you may be motoring for longer periods. The support from Rick has been great and appreciated. Thanks!

  4. Fred Sochat (verified owner)

    We installed the WS500 over a Leece Neville 175A/24V alternator using the insights and setup provided by Rick. It works just fine and is by far the best choice for securing the alternator for a big LiFePO4 bank, mainly if supplied by Off-grid Software Solutions and Rick. Thank you

    Just a small issue with harness which had to be fixed because of faulty pins connection. Quality management from the manufacturer isn’t at the level offered by Rick and the OGSS team.
    Thank you Rick !
    Highly recommended

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