Schumacher DSR139 ProSeries 6V/12V Manual Battery Charger & 225A Engine Starter - Trucks & SUVs

Powerful, hands-on charging for large vehicles

The Schumacher DSR139 ProSeries combines a rugged 6V/12V manual charger with a high-amperage engine starter. Built for trucks, SUVs, and other heavy battery setups, this unit puts you in direct control over every charging step, making it ideal for shop work, garages, and roadside assistance alike. A clear 135-minute timer and an easy-to-read amp meter help you monitor progress at a glance, so you can fine-tune settings to suit the battery in front of you.

Precise control with versatile battery support

Unlike fully automatic models, the DSR139 emphasizes hands-on handling. It supports standard, AGM, and gel batteries in both 6V and 12V configurations, enabling flexible use across a range of vehicles and maintenance scenarios. Expect dependable performance when you need to top up a battery, bridge a jump, or perform a controlled charge in professional settings.

• 135-minute timer and a clear amp meter for precise charging management
• Supports standard, AGM, and gel battery chemistries in 6V/12V modes
• Manual control offers tactful handling for sensitive battery maintenance

Powerful starting boost for big jobs

When a quick engine boost is necessary, the DSR139 delivers up to 225 amps to help start SUVs, trucks, and other large engines. This is a dedicated boost mode designed for robust performance when time matters, without turning charging into a fully automatic process.

• Up to 225A jump-start capability for heavy-duty engines
• Compatible with standard, AGM, and gel batteries for versatility
• Color-coded front clamps help ensure safe, correct connections

Mobility, reach, and durable construction

Designed for mobility, the DSR139 travels with you thanks to durable wheels and a retractable handle. Front-mounted clamps and a total reach of 12 feet (6 feet of power cord plus 6 feet of cables) provide flexible positioning in busy spaces, whether in a shop, garage, or on the road.

• Wheels and retractable handle simplify transport and storage
• 12-foot total reach enhances access in tight spaces
• 6-gauge output cables stay pliable in cold conditions for reliable operation

Built to meet energy-efficient standards and designed for long-term use, the DSR139 also carries a one-year warranty. While it focuses on 6V/12V operation rather than a full 12/24V auto charger, it remains a capable option for automotive, marine, and heavy-duty tasks where strong charging power is useful. This makes the DSR139 a compelling alternative to larger, more automatic systems when hands-on control is valued.

Why choose the Schumacher DSR139

Schumacher Electric backs every vehicle battery charger, engine starter, and maintainer with a commitment to reliability and professional-grade performance. Use it where you need dependable battery care for large vehicles, with the assurance of a trusted brand and practical, field-ready features.