Ignitions and Electrical Charging Systems

MASTERVOLT

MASTERVOLT MAC PLUS DC/DC CONVERTER

$682.83

SKU: M06H 81205305

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Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

This converter solves the problem of service batteries not getting enough charge due to smart alternators and start/stop systems. It ensures a quick, safe, and consistent charge and prevents draining the starter battery by detecting when the engine is running. It uses the Mastervolt 3-step+ charge algorithm, is robustly designed with high-quality aluminum housing for dust and water protection (IP23), and operates silently without a fan. It has a wide DC input range, can charge two batteries from a single alternator, and supports various battery chemistries, including flooded, Gel, AGM, and Li-Ion (LiFePO4). It is compatible with modern alternators (Euro 5/6) and can be configured in parallel for charging capacities over 100 Amps. It also features analog voltage sense ports and is compatible with CZone®, NMEA 2000®, and MasterBus for advanced monitoring and control.

Fitment

Fitment Guaranteed

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on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandMASTERVOLT
Part NumberM06H 81205305

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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