Mastervolt Alpha Pro III

MASTERVOLT ALPHA PRO III
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DS1276-69995 45513000
$673.99
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Technical Information Guide

Alpha Pro III

Advanced 3-step charge regulator for standard and high performance alternators

The propulsion engine of your boat or vehicles may be used to quickly charge your service batteries, either while cruising or taking a break. The advanced and powerful Alpha Pro III ensures fast and safe charging, protecting both the engine and the batteries. Building on 10 years of experience, the Alpha Pro III features a modernized look, higher power and improved ease of use.

The Alpha Pro III measures the temperature and the voltage of your batteries to prevent overcharging, keeping them in perfect condition. It also monitors the engine load, thus reducing sound variations, wear and tear. The smart ‘keep alive’ feature solves a common problem causing unreliable tachometer readings. Via MasterBus, it communicates RPM, alternator status and charge status to create intelligent power systems. 

Pull the max out of your alternator

The alternator that comes with the engine is not optimally suited for charging service batteries. Designed for low cost and short charge cycles, it charges at a slow pace and is easily overheated. Replacing the standard regulator* with the Alpha Pro III optimizes this charging process, protects against overheating and overcharging and extends the lifetime of your batteries. 

(* not allowed on Euro 5/6 engines)

Super charge your system

For superfast charging at low RPM, Mastervolt recommends to combine the Alpha Pro III with a high performance alternator such as the reputable Alpha series. With 20 amps of field current capability, the Alpha Pro is the only 3-step regulator in the market capable of controlling alternators with outputs up to 400 A!

Alpha Pro III: Fast charging, anytime, anywhere. 

Features:

  • Transforms every alternator into a full temperature controlled 3-step charger.
  • Reduces run time, saves fuel, reduces noise and emissions.
  • Protects from overcharging and extends battery life.
  • Balances engine load, reducing RPM variations.
  • Compatible with standard and high performance alternators, incl. 200 A 400 A models.
  • Integrated ‘keep alive’ feature for reliable tachometer readings.
  • Suitable for every battery type, including Lithium Ion.
  • Suitable for 12 V and 24 V system voltages.
  • Masterbus compatible: simplifies wiring, saves space and weight, and creates optimal cooperation between Mastervolt products.

Applications:

Applications range from improving the performance of a standard alternator in a vehicle or boat, to generator replacement, when combined with a high performance alternator. 

"Warning"WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

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RETURN POLICY


We accept returns on most items within 30 days of delivery.

To start a return, submit a Return Authorization (RA) request using the form below. The RA must be issued within 30 days of the delivery date, and the item must be received back at our warehouse within 14 days of the RA being issued.


Requirements for a full refund include:

1. Item must be in new, uninstalled condition.

2. Item must be returned with all original packaging, hardware, and accessories.

3. Return shipping is prepaid by the customer unless the item arrived damaged, defective, or incorrect due to our error.

4. RA number must be clearly marked on the outside of the package.


NON-RETURNABLE ITEMS: The following are final sale and cannot be returned:

- Special order, built-to-order, or custom items

- Items cut, drilled, modified, or installed

- Items missing original packaging or accessories

- Items without proof of purchase


General - Cancellations, Shipping Damage, Missing Packages, Shipment Refusals:
Claims of shipping damage, incorrect items, or missing items must be reported within seven (7) days of delivery. For LTL freight shipments, damage must be noted on the delivery receipt at the time of delivery. Concealed damage claims after a clean signed POD are difficult to recover and may be denied by the carrier. Orders that have been processed and shipped cannot be cancelled, and you may need to wait until you receive the merchandise in order to return it. Customer is responsible for all costs associated with refused shipments including carrier fees, freight to the customer, and return freight. We reserve the right to refuse returns that are sent COD, without a return authorization, show signs of undisclosed installation/use, have missing parts/packaging, missing proof of purchase, or have SKU numbers that do not match our records. If you do not comply with any of the above conditions, we reserve the right to refuse the return/exchange, or to impose different or additional conditions.

Must Be Returned to the Following Address:

Marine Depot Direct
Returns Department
14716 Central Ave
Chino CA 91710

 

PARTIAL REFUNDS OR RESTOCKING FEES

Condition Refund
New condition, within 30-day window 100% of the item price (less return shipping)
New condition, past 30-day window (case-by-case)* 80% of the item price
Items that are damaged, missing parts, not in the original condition, or have obvious signs of use for reasons not due to our error Up to 50% of the item price
Products that are unusable, destroyed, or incomplete to the point of no resale value 0% of the item price

*For most items, the return window is 30 days after delivery. LTL freight items, oversized items, and large hardware assemblies may be subject to an additional restocking fee to cover return freight and inspection. This will be disclosed when the RA is issued.

 

How Refunds Are Issued

If you're receiving a refund after we have received your item, it may take an additional three to five business days to process your return fully and issue your refund.

Once we issue your refund, it may take additional time for your funds to be made available in your account by your financial institution. See the following table for more details.

Refund Method Refund Time (After Refund Is Processed)
Credit card Three to five business days
Debit card Up to 10 business days
Checking account Up to 10 business days
Shipping

In-stock items ship within 1 business day from our California or Florida warehouse. Items showing a lead time above ship once stock arrives at our warehouse.


> Same-day shipping on orders placed before 9:00 AM Pacific Time

> Standard ground delivery is 3-7 business days. Need it sooner? Choose Next Day Air or 2nd Day Air at checkout.

> Free shipping on U.S. orders over $99 (excluding AK and HI)

> Oversized items ship by LTL freight. Inspect the shipment and note any damage on the delivery receipt before signing.

> International shipping to Canada and other countries available at checkout


For full details, see our Shipping Policy.

  • Installation Guide View
  • Owners Manual View