Forney PRO Frontline™ 75A Smart Battery Charger and Engine Starter
DESCRIPTION
The Forney PRO Frontline™ 75A Smart Battery Charger and Engine Starter sits at the top of the Frontline™ series, delivering serious charging and starting power in a portable package. With up to 75 amps of charging current and 300 amps of engine-starting output, the Frontline 75 is built to handle demanding automotive, agricultural, marine, and shop environments while often outperforming larger wheeled chargers.
Engineered for 6-volt and 12-volt systems, the Frontline 75 supports a broad range of supported battery types, including traditional lead-acid variants—STD: Wet, EFB, MF, Ca, Deep-cycle; AGM; and Gel types—plus LiFePO₄ lithium chemistries. Its advanced multi-stage charging system automatically adjusts voltage and current based on battery condition, helping to deliver faster recovery, strong performance, and longer service life when used as directed.
The Frontline 75 offers three selectable charge rates (10 A / 25 A / 75 A) to match different battery sizes and service tasks, plus a powerful 300A Engine Start/Boost function for extra support during tough starts. A variable Power Supply Mode (13.1–14.9 V) provides clean, stable DC power for ECU programming, battery swaps, accessory power, and bench diagnostics. For eligible lead-acid batteries, Repair Mode is designed to help address sulfation and acid stratification, supporting improved performance and potential recovery of neglected batteries. Complementing these modes, Alternator Test Mode gives users a quick way to check basic charging system health by observing system voltage with the engine running—helping flag potential alternator or regulator concerns early.
Built for tough shop conditions, this unit features heavy-duty 14 AWG DC charging leads, a robust 4 GA AC power cable (6 ft 2 in / 1.88 m), and a durable IP20-rated steel housing that resists oil, chemicals, grease, and UV exposure. Integrated protection against reverse polarity, sparks, overheating, short-circuit, open-circuit, and overcharge conditions helps ensure safe operation in professional and DIY environments alike.
Certified to ETL (UL 1236 / CSA C22.2 No. 107.2), FCC, and DOE standards, the Frontline 75 delivers wheeled-charger performance in a fraction of the footprint—backed by a 3-Year Limited Warranty.
Use Applications
The Frontline™ 75 is built for users who need serious charging and starting capability across multiple platforms:
- Automotive & Fleet: Cars, trucks, SUVs, service vehicles, and light buses
- Agriculture: Tractors, combines, skid steers, and diesel-powered equipment
- Marine & Power Sports: Boats, tow vehicles, RVs, ATVs, and UTVs
- Industrial & Shop: Generators, small forklifts, and diagnostic bench work using Power Supply Mode
- Maintenance & Storage: Starting and deep-cycle lead-acid batteries, plus supported LiFePO₄ batteries, for long-term upkeep
- Ideal for users seeking a 75-amp automotive charger, a 300A engine starter, and an adjustable DC power supply that can stand in for many large wheeled shop models.
What’s in the Box
- Forney PRO Frontline™ 75A Smart Battery Charger and Engine Starter
- Quick Start Guide & Safety Information
Key Features
- High-output 5-in-1 system: Charge, Maintain, Alternator Test, Adjustable Power Source and Engine Start
- Selectable 10 A / 25 A / 75 A charging modes for different battery sizes and tasks
- 300 Amp Engine Start/Boost function for rapid, reliable starting support
- Variable Power Supply Mode (13.1–14.9 V) for ECU flashing, diagnostics, and accessory power
- Alternator Test Mode for quick, voltage-based verification of basic charging system performance with the engine running
- Repair Mode designed to help address sulfation and acid stratification in eligible lead-acid batteries
- Supports a wide range of lead-acid types (AGM, CA, EFB, Gel, MF, Wet) and LiFePO₄ lithium chemistries
- Integrated safety protection: reverse polarity, spark-proof connection, short-circuit, overheat, overcharge, and open-circuit safeguards
- Durable IP20-rated steel housing with oil-, chemical-, and abrasion-resistant finish
- Heavy-duty 14 AWG DC leads and 4 GA AC power cable, with approximately 6 ft reach
- Power consumption: 1,788 W (max)
- Dimensions: 13 × 9.4 × 8.6 in
- Weight: 11.47 lb
- ETL, FCC, and DOE certified
- 3-Year Limited Warranty
RESOURCES
WARRANTY
3- Year
- Product: Free of defects in material and workmanship that may occur under normal use and care.