Dometic • Battery Charger / Standby Charger

Dometic MT StandbyChargerPRO

Official technical documentation and workshop diagnostics for MT StandbyChargerPRO.

Technical Specifications

ElectricalInput voltage: 12 - 15 Vg. Output voltage: 12 - 15 Vg. Charging current: 2x 0 - 2.5 A / 0 - 5 A. Protection type: IP20. Fuses: 5 A (for 2.5 A variant) or 10 A (for 5 A variant).
Gas Or PressureNot applicable (Electrical device)
Capacities DimensionsDimensions (WxDxH): 130 x 70 x 32 mm. Weight: 0.25 kg. Ambient humidity: <= 95 %, non-condensing. Storage temperature: -25 °C to +60 °C. Operating temperature: -20 °C to +40 °C.

Master Troubleshooting & Diagnostics Matrix

Error Code / IndicatorSymptom / MeaningPossible CauseStep-by-Step DIY FixSuggested Actions
N/A
The standby charger isn't working.
Either the cables aren't wired up correctly, or an electrical part has failed.
Check the electrical connections. Contact an authorised service agent if you can't spot the fault.
DIY Check / Tech Fallback
N/A
A short circuit has been generated.
Excess current triggered the fuse.
Once excess current has tripped the device fuse, it must be replaced by an authorised service agent.
Professional Intervention Required
N/A
The standby charger stops mid-charge.
The battery is defective.
Replace the battery.
DIY Safe
N/A
It won't reach full charge current.
Could be badly connected battery terminals, or the wrong cable cross-section/length/voltage.
Check the connections and the cables' lengths and cross-sections, and measure the voltages directly at the terminals/screws.
DIY Safe
N/A
The charging process is slow.
The battery is significantly sulfated.
Replace the battery.
DIY Safe
N/A
The battery won't take a charge, or can't hold one.
The battery is defective.
Replace the battery.
DIY Safe