Introducción
The DieHard DH137 is a 10A 12V battery charger designed for use with standard, AGM, and Gel batteries. This device is engineered to monitor and maintain the battery's charge level, automatically resuming charging if the battery's voltage drops. Key features include reverse hook-up protection, multi-stage charging for enhanced precision and safety, and extended battery life. It comes equipped with 50 Amp clamps suitable for both top-mount and side-mount battery posts.
Información importante de seguridad
Lea y comprenda siempre todas las advertencias e instrucciones de seguridad antes de usar este producto. El incumplimiento de estas instrucciones podría provocar una descarga eléctrica, un incendio o lesiones graves.
- Úselo sólo en áreas bien ventiladas.
- Utilice protección para los ojos y ropa protectora cuando trabaje con baterías.
- Mantener fuera del alcance de los niños.
- No exponga el cargador a la lluvia ni a condiciones de humedad.
- Asegúrese de que el cargador esté desconectado de la fuente de alimentación antes de realizar o interrumpir conexiones a la batería.
- Avoid dropping metal tools onto the battery. This could short-circuit the battery or other electrical parts, which may cause an explosion.
- This charger is not intended for use as a power supply.
Producto terminadoview

Figure 1: The DieHard DH137 10 Amp Cargador de batería, showcasing its main unit and the red and black 50 Amp clamps.

Figura 2: Un ángulo view of the DieHard DH137 charger, highlighting its compact design and integrated handle.
The DieHard DH137 features a robust casing with a clear control panel. The panel includes LED indicators for charging status, battery maintenance, reverse hook-up, and bad battery detection. A prominent START/STOP button controls the charging process. The unit is equipped with heavy-duty 50 Amp clamps para una conexión segura a los terminales de la batería.
- Indicadores LED: Provide visual feedback on the charging status (Charging, Charged/Maintaining, Clamps Reversed, Bad Battery).
- Botón START / STOP: Initiates and terminates the charging cycle.
- 50 Amp Clamps: Cl duraderoamps for connecting to battery posts.
- Puerto USB: For charging small electronic devices (2.1A MAX).
Configuración
Before connecting the charger, ensure the battery terminals are clean and free of corrosion. Position the charger on a stable, non-flammable surface away from the battery to allow for proper ventilation.
- Verify the battery type (Standard, AGM, Gel) matches the charger's capabilities.
- Ensure the charger's AC power cord is unplugged from the electrical outlet.
- Conecte el positivo rojo (+) clamp al terminal positivo (+) de la batería.
- Conecte el negativo negro (-) clamp to the negative (-) battery terminal. If connecting to a vehicle, connect the negative clamp al chasis del vehículo o al bloque del motor, lejos de la batería y la línea de combustible.
- Confirme que todas las conexiones sean seguras.
Instrucciones de funcionamiento

Figure 3: The DieHard DH137 charger positioned on the engine bay of a vehicle, ready for connection.

Figure 4: A user connecting the red positive clamp of the DieHard DH137 to the positive terminal of a car battery.
The DieHard DH137 features fully automatic, microprocessor-controlled charging. Once connected, it will assess the battery and begin the appropriate charging stage.
- Conectarse a la energía: Plug the charger's AC power cord into a standard 120V AC electrical wall outlet.
- Iniciar la carga: Presione el INICIAR/DETENER button. The charger will begin its diagnostic and charging cycle.
- Estado del monitor: Observe los indicadores LED:
- Solid green LED: Indicates the battery is fully charged and in maintenance mode.
- Solid yellow LED: Indicates charging is in progress.
- Flashing red LED: Indicates reverse hook-up. Disconnect and re-connect clamps correctamente.
- Solid red LED: Indicates a bad battery.
- Multi-Stage Cargando: The charger automatically progresses through various stages (desulfation, bulk charge, absorption, float) to optimize battery performance and longevity.
- Reverse Hook-up Protection: Si clamps are connected incorrectly, the charger will not operate and the red LED will flash, preventing damage to the battery or charger.
- Carga USB: To use the USB port, plug your device into the USB port. The USB ON/OFF and Battery Status LED will illuminate. When finished, press the button to turn off the USB.
- Terminación: Once the green LED is solid, the battery is fully charged. You may leave the charger connected for long-term maintenance.
- Desconectando: First, unplug the AC power cord from the outlet. Then, disconnect the negative (-) clamp, seguido del positivo (+) clamp.
Notas importantes:
- The charger will automatically monitor and maintain the battery when fully charged, resuming continuous charging if the battery becomes discharged.
- This unit is a battery charger/maintainer, not a jump starter. It is designed for charging over time, not for instant starting of a dead battery.
Mantenimiento
Proper maintenance ensures the longevity and optimal performance of your DieHard DH137 battery charger.
- Limpieza: Disconnect the charger from all power sources and batteries before cleaning. Wipe the case and clamps with a dry cloth. Do not use solvents or abrasive cleaners.
- Almacenamiento: Guarde el cargador en un lugar fresco y seco cuando no esté en uso. Asegúrese de que esté limpio.amps are clean and not touching each other.
- Cuidado de cables: Inspect the AC power cord and battery cables for any damage (cuts, fraying, exposed wires) before each use. Do not use the charger if any cables are damaged.
Solución de problemas
| Problema | Posible causa | Solución |
|---|---|---|
| El cargador no se enciende. | No AC power; faulty outlet; internal fault. | Check AC outlet; ensure charger is properly plugged in. If problem persists, contact support. |
| Flashing red LED (Clamps Reversed). | Batería limpiaamps están conectados incorrectamente. | Disconnect AC power, then disconnect clamps. Re-connect red clamp a positivo (+) y negro clamp a negativo (-). |
| Solid red LED (Bad Battery). | Battery is severely sulfated, short-circuited, or damaged. | The charger cannot charge this battery. Have the battery professionally tested or replaced. |
| Charger not reaching full charge (green LED). | Battery is very large, deeply discharged, or has internal issues. | Allow more time for charging. If it never reaches full charge, the battery may be compromised. |
Presupuesto
- Marca: Intransigente
- Modelo: DH137
- Vol de salidatage: 12 voltios
- Cargando Ampedad: 10 Amp
- Tipos de batería compatibles: Standard, AGM, Gel
- Peso del artículo: 1.6 onzas
- Dimensiones del producto: 8.75 x 4.75 x 9.5 pulgadas
- Fabricante: Corporación Schumacher Electric
- Características: multi-stage charging, Reverse hook-up protection, LED indicators, USB charging port.
Garantía y soporte
For detailed warranty information, please refer to the warranty card included with your product or visit the official DieHard webSitio. Conserve su recibo de compra como comprobante de compra para cualquier reclamación de garantía.
For technical support, troubleshooting assistance, or to inquire about replacement parts, please contact Schumacher Electric Corp. customer service. Contact details can typically be found in the product packaging or on the manufacturer's websitio.
Note: The provided JSON data includes information about optional protection plans (2-Year Protection Plan, 3-Year Protection Plan, Complete Protect) which are separate from the manufacturer's standard product warranty. Please consult the terms and conditions of these plans for details.





