SKU: 76513453726

Balmar 48V Alternator Protection Module

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Description

Balmar 48V Alternator Protection ModuleBalmar Alternator Protection Module: Solid State Defence Against Voltage Spikes and Load Dumps Safeguard Your Alternator from Lithium BMS Disconnects, Switch Interruptions, and Inductive Surges The Balmar Alternator Protection Module (APM) provides robust, solid state protection for your alternators diodes and internal regulator. Designed to clamp high energy voltage spikes and absorb sustained over voltage conditions, the APM is essential for any

Balmar Alternator Protection Module: Solid-State Defence Against Voltage Spikes and Load Dumps

Safeguard Your Alternator from Lithium BMS Disconnects, Switch Interruptions, and Inductive Surges

The Balmar Alternator Protection Module (APM) provides robust, solid-state protection for your alternator’s diodes and internal regulator. Designed to clamp high-energy voltage spikes and absorb sustained over-voltage conditions, the APM is essential for any charging system exposed to lithium battery BMS disconnects, battery switch interruptions, or surges from solenoids, combiners, and starter motors. Without protection, these events can instantly destroy an alternator—the APM eliminates that risk.

Engineered to meet stringent international standards, the APM mounts directly at the rear of the alternator between the B+ and B- terminals, ensuring the shortest possible path for surge diversion. Its compact, sealed design withstands harsh marine and automotive environments, including salt spray and fog, making it ideal for marine alternator protection, RV electrical systems, and off-grid power setups.

How the APM Protects Your Alternator

Voltage spikes occur when a load is suddenly removed from the alternator—such as a lithium battery’s BMS opening under full charge. The resulting load dump can generate spikes well above the alternator’s rating, puncturing diodes and frying regulators. The Balmar APM instantly clamps these transients, absorbing surge currents in excess of 200 A without failure. It also handles sustained over-voltage conditions, shunting excess energy away from sensitive electronics.

Unlike sacrificial devices that fail after a single event, the APM is designed for repeated surges. A green LED indicates active protection; if the module is ever compromised, a red LED and audible alarm alert you to replace it—providing clear, immediate status without guesswork.

Key Features

  • Solid-state surge protection clamps voltage spikes and absorbs load-dump energy
  • Protects against lithium BMS disconnects, battery switch interruptions, and inductive surges
  • Surge absorption in excess of 200 A for repeated events without failure
  • Visual and audible failure indication: green LED = protecting; red LED + beep = replace
  • Compact, direct-mount design installs at alternator B+ and B- terminals
  • Meets ISO 16750-2, ISO 7637-2, SAE J1171, and ASTM B117 for load dump, surge, ignition protection, and salt spray
  • Compatible with all alternator brands and isolated or case-grounded configurations

Built for Harsh Environments

The APM’s sealed electronics and corrosion-resistant construction meet ASTM B117 salt spray/fog standards, ensuring reliable operation in coastal and marine applications. SAE J1171 ignition protection makes it safe for installation in engine rooms and other hazardous areas. Whether you’re powering a marine alternator on a bluewater cruiser, a 24V alternator in a mining vehicle, or a 48V alternator in an off-grid solar system, the APM delivers consistent, maintenance-free defence.

Simple Installation, Immediate Protection

Installation is straightforward: connect the red lead to the alternator’s B+ post and the black lead to B- (isolated ground alternators) or to a case mounting bolt (case ground alternators). The module’s small footprint fits neatly behind the alternator, requiring no additional brackets or wiring runs. Once connected, the APM begins protecting immediately—no configuration needed.

Optimised for 48 V systems, clamping high-energy transients to protect high-voltage alternators

Protect Your Investment Today

Don’t leave your alternator vulnerable to a single disconnect event. Install the Balmar Alternator Protection Module and gain peace of mind knowing your charging system is shielded against the most common and destructive electrical faults. Order now to safeguard your alternator and keep your power system running reliably.

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SKU: 76513453726

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Nancy88
Houston, US
★★★★★ 5
Effective for dry mouth
Size: 4.3 Ounce (Pack of 1)
I love this. It’s great for dry mouth and it makes your breath smell good too
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026
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Sue
Los Angeles, US
★★★★★ 5
Pricey but great for people who need something gently on the tongue or mouth
Size: 4.3 Ounce (Pack of 1)
Great alternative to traditional Toothpaste. Its a bit pricey but if you are like me you dont have to share it with anyone else because they can use regular toothpaste. The minty flavor is subtle but does not cause irritation. Easy to just just like regular toothpaste. it doesnt have any whitening in it but is a comfort for those that need a toothpaste gently on the tongue or mouth. Still does the job
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Reviewed in the United States on April 24, 2026
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Barbmom
Omaha, US
★★★★★ 5
Wonderful book
Format: Hardcover
Alan Schore is a gifted reseacher and this book is a great addition to the field espeically for those of us that work with non verbal treatment.
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Reviewed in the United States on July 11, 2019
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Fr. Charles Erlandson
Cuba, US
★★★★★ 5
Possibly the Most Important Theological Work of the 20th Century
Format: Paperback
Pope John Paul II's "Man and Woman He Created Them," popularly known as "A Theology of the Body" may be the most important theological work of the 20th century. I say this because John Paul II is not only a first-rate theologian but also because "Theology of the Body" strikes at the heart of a series of related issues that desperately need addressing today. "Theology of the Body" begins with the Pope's Trinitarianism, a fundamental doctrine that Christians often don't know what to do with. At the heart of his thinking, and all true Christian thinking, is God's self-giving love that is rooted in the Trinity. "Theology of the Body" also explores the nature of what it means to be human and made in the image of God. The book is titled "Man and Woman He Created Them" because it is especially in the relationship between a man and his wife that the relational and loving identity of God is revealed in humanity. Throughout, the Pope reaffirms the essential goodness of the human body. "Theology of the Body" is thus a profound theological work that I highly recommend to pastors, teachers, and educated laymen. Be aware: it's not an easy read! But a patient and thoughtful reading of "Theology of the Body" will, in time, become a blessing to the reader. One of the reasons it remains such a timely work is that it confronts some of the Gnostic tendencies in the Church today that spiritualize things and tend to downplay the significance and basic goodness of the body. At a time when humanistic and distorted views of human sexuality and identity abound, "Theology of the Body" provides an intelligent and profound rationale for the biblical, Christian meaning of sex, the body, and being made in the image of God. While Protestants may think that a work written by a Pope would be too Roman Catholic for them, in reality "Theology of the Body" is a work for the whole Church and all Christians. The book is filled with profound and rare insight into who God is and who man is. It will help to complete the theology of most Christian readers and also has important practical implications. Because the book was originally an extended series of lectures at times it can be unwieldy and difficult to comprehend. Sometimes it's difficult to understand what the Pope means in certain sections, since his writing is often dense. In spite of the difficulty in reading, it's well worth the effort. Because of the depth and difficulty of the work, some have found it beneficial to also read "Theology of the Body for Beginners" by Christopher West.
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Reviewed in the United States on August 22, 2011
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Daniel Francis Good
Lowell, US
★★★★★ 5
Excellent
Format: Paperback
While some readers may find John Paul II's writing style a bit circular or highly philosophical, the message presented in this text will change your life. Still, it is not easy reading. It is a collection of 129 audiences given by John Paul II commonly called the Theology of the Body. The audiences are based on Sacred Scripture. In this new translation audiences that were not delivered are now included. The Theology of the Body treats sexuality, marriage, celibacy, anthropology, family life, responsible parenthood, the wound of sin, redemption, and the resurrection of the body. This book is in my top five of best books. I have read both translations and Michael Waldstein's is much easier to read than the first edition. The new headers at the beginning of each section that directly indicate what is being dealt with in the text. The introduction that Waldstein provides gives a theological and philosophical vision for understanding the text. This book is worth your time. It stands against the culture of death and promotes the Gospel of Jesus Christ. It holds the answers the hunger that society is so desperately grasping at. If you don't know much about the Theology of Body it would prove useful to read an introductory text by West, Hogan, or Percy & Schmitz. Christopher West, who is properly described as a catechist, has excellent presentations on the Theology of the Body in DVD and CD format that could prove helpful to a first time reader. On a personal note: The Theology of the Body has helped me so much. I am in Holy Orders and I don't think I would be where I am except for this message (and God's grace and His will). This isn't some message that you can simply read and understand - it is something that you have to approach with an open heart and mind with prayer. I really hope you read this book and promote it's message.
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Reviewed in the United States on September 28, 2009

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