Douglas Hydraulic Manufacturing RSC-L1STP 12V Switch Mode Charger for Hydraulic Lift Trailers 7.5-Amp
12V switch mode charger/tester for hydraulic lift trailers, hydraulic dump trailers, and trailer-mounted hydraulic systems using an onboard 12V battery. Includes charging, battery life test button, 2-wire leads, cover with lid, and mounting hardware.
Overview
This Douglas Hydraulic Manufacturing 12V switch mode charger/tester is designed for hydraulic lift trailers, hydraulic dump trailers, and trailer-mounted hydraulic battery systems. It helps charge and maintain the 12V battery used to power hydraulic trailer operation and includes a battery life test button for quick condition checks.
R&P Service Insight
Hydraulic trailer batteries work hard, especially on dump and lift systems where repeated pump cycles can pull charge down quickly. A properly matched onboard charger helps keep the battery ready between uses and can reduce low-voltage hydraulic performance problems.
- Battery Maintenance: Helps maintain the 12V battery used for trailer-mounted hydraulic operation.
- Automatic Shutoff: Charger only charges until the battery is full, helping reduce unnecessary charging once the battery reaches full charge.
- Quick Testing: Built-in test button allows a quick battery life check at the charger/tester unit.
R&P Knowledge Hub
Compatibility: Intended for 12V battery systems used on hydraulic lift trailers, hydraulic dump trailers, and trailer-mounted hydraulic systems where electrical requirements and wiring configuration match.
Vehicle / System Fit: Trailer-mounted 12V hydraulic power systems using a battery-powered hydraulic pump setup.
Installation Notes: Verify part number, model number, voltage, charger rating, wiring style, lead length, battery condition, terminal connection points, and mounting location before installation.
Performance Insight: A dedicated charger/tester is useful on hydraulic trailer systems because the battery may sit between uses and then be required to power high-demand lift or dump operation.
Brand & Fitment Note
Selling Brand: Douglas Hydraulic Manufacturing
Application Reference: Hydraulic lift trailer, hydraulic dump trailer, and trailer-mounted hydraulic system references describe the intended application style only.
What This Means: This listing is for a Douglas Hydraulic Manufacturing 12V switch mode charger/tester, not a guaranteed replacement for every hydraulic trailer charger unless the part number, model, voltage, wiring, dimensions, and system requirements match.
Before Ordering: Confirm part number 3805211, model RSC-L1STP, 12V system compatibility, 7.5-Amp charger requirement, 2-wire setup, lead length, cover size, and your trailer’s charging requirements before installation.
R&P Repair Insight
Low battery voltage is a common cause of weak, slow, or inconsistent hydraulic trailer operation. Before replacing a charger, inspect the battery, terminals, wiring, ground connections, and charging source so the new charger is not being asked to compensate for a separate electrical problem.
- System Check: Confirm the trailer uses a 12V battery-powered hydraulic system for dump or lift operation.
- Wiring Check: Confirm the 2-wire setup and 23" lead length are suitable for your battery and mounting location.
- Mounting Check: Confirm the tester unit and cover dimensions fit the available mounting space before installation.
Features
12V Hydraulic Trailer Charging
Designed for 12V battery systems used on hydraulic lift trailers, hydraulic dump trailers, and trailer-mounted hydraulic applications.
7.5-Amp Switch Mode Charger
Switch mode charger design for hydraulic trailer battery systems requiring a 12V charger/tester setup.
Battery Life Test Button
Integrated test button allows a quick battery life check directly at the charger/tester unit.
2-Wire Battery Lead Setup
Includes 2 x 14GA wires with 23" leads for connection into the trailer battery charging system.
Specifications
| Specification | Detail |
|---|---|
| Part Number | 3805211 |
| Model | RSC-L1STP |
| Brand | Douglas Hydraulic Manufacturing |
| Product Type | 12V switch mode charger/tester |
| Application | Hydraulic lift trailers, hydraulic dump trailers, and trailer-mounted hydraulic systems using a 12V battery |
| Input | AC 120V / 60Hz |
| Output | DC 12V |
| Charging Current | 7.5-Amp |
| Charging Behavior | Charger only charges until the battery is full |
| Tester Function | Test button for battery life |
| Wiring | 2-wire setup |
| Wire Gauge / Lead Length | 2 x 14GA wires with 23" leads |
| Tester Unit Dimensions | 3-1/2" W x 5" H x 2-1/2" D |
| Cover Dimensions | 3" W x 3" H x 1" D |
| Mounting Hardware | Included |
Fitment / Application
| Category | Details |
|---|---|
| Vehicle / System | Trailer-mounted hydraulic system with 12V battery power |
| Primary Fit | Hydraulic lift trailers requiring a 12V switch mode charger/tester |
| Secondary Fit | Hydraulic dump trailers and other trailer-mounted hydraulic lift systems requiring a 12V battery charger |
| Notes | Verify part number 3805211, model RSC-L1STP, 12V battery system, 7.5-Amp charger requirement, 2-wire setup, lead length, unit dimensions, and cover dimensions before ordering or installing. |
Included Components
| Quantity | Item |
|---|---|
| 1 | Charger/tester unit |
| 1 | Cover with lid |
| Included | Mounting hardware |
| Attached | 2 x 14GA wires with 23" leads |
