Votronic Standby Charger 12V 0-3A for automatic recharging and battery maintenance
- Starter battery topped up: Automatically while your leisure battery is charging.
- Keep your existing wiring: Retrofit without modifying installed cables.
- Avoid overcharging: Reduced charging voltage and current limited to 3 A.
- Check battery compatibility: Not suitable for LiFePO4 batteries.
Item no. 36115
The VOTRONIC StandBy-Charger 12V 0-3A provides automatic top-up and maintenance charging for your starter or auxiliary battery while the on-board battery is being charged. This allows an existing charging output to support a second battery.
Not suitable for LiFePO4 batteries.
Use one charging source to support a second battery
The charger complements mains chargers, solar charge controllers or generators with only one charging output. While one of these sources charges the on-board battery, a small proportion of the charging current is passed to the starter or auxiliary battery, depending on its state of charge. Top-up charging takes place automatically and can be identified by an increase in the second battery's voltage.
Limited current and reduced voltage for maintenance charging
The second battery receives 0-3 A, depending on its state of charge. Its charging voltage is at least 0.6 V lower than that of the on-board battery. Limiting the current and reducing the voltage help prevent the second battery from being overcharged.
Retrofit without altering the existing wiring
The unit connects between the on-board battery and either the starter battery or an auxiliary battery. This requires no changes to the existing wiring. Its dimensions of 90 x 60 x 38 mm allow you to check the space required before installation. Flat connectors in 6.3 mm and 9.5 mm sizes and instructions are included.
Check your battery configuration before choosing
For use in a Mercedes-Benz Marco Polo W447 or Viano Marco Polo W639, the actual battery and charging system fitted to the vehicle must be checked. Compare the 12 V nominal voltage, battery chemistry and connection requirements with the instructions. The vehicle model alone does not confirm suitability.
| Technical data | StandBy Charger 12V |
|---|---|
| Nominal battery voltage | 12V |
| Standby charging current | 0-3 A |
| Dimensions | 90 x 60 x 38mm |
| Weight | 52g |
| Approval marks | CE, E-mark approval (EMC/automotive directive) |
| Scope of delivery | 6.3 mm and 9.5 mm flat connectors, instructions |
What is the VOTRONIC StandBy-Charger 12V used for?
It provides automatic top-up and maintenance charging for a starter or auxiliary battery while the on-board battery is being charged. It complements mains chargers, solar charge controllers or generators that have only one charging output.
What charging current and voltage does it provide?
A small proportion of the charging current is passed to the second battery, depending on its state of charge. The current ranges from 0 to 3 A. The second battery's charging voltage is at least 0.6 V lower than that of the on-board battery.
What battery requirements must be considered?
This version is intended for battery systems with a nominal voltage of 12 V. It is not suitable for LiFePO4 batteries. Check the battery chemistry and the existing charging system before connecting the unit.
How is the StandBy-Charger retrofitted?
The unit connects between the on-board battery and either the starter battery or an auxiliary battery. The existing wiring does not need to be altered. Follow the instructions when connecting the unit.
What should be checked before use in a Marco Polo W447 or Viano Marco Polo W639?
Suitability cannot be established from the vehicle model alone. Check the actual battery and charging configuration, the 12 V nominal voltage, battery chemistry and connection requirements against the instructions before installation.
How can you tell that automatic top-up charging is taking place?
Active top-up charging can be identified by an increase in the second battery's voltage. The process takes place automatically when the on-board battery is being charged and a proportion of the charging current is passed to the second battery.
What are the unit's dimensions and weight?
The StandBy-Charger measures 90 x 60 x 38 mm and weighs 52 g. Use these dimensions to check the available installation space.
What is included?
The scope of delivery includes 6.3 mm and 9.5 mm flat connectors and instructions.
The order creation for optional installation service is done manually, in this case please do not order online.
| Brand | Votronic |
| Item No. | 36115 |
| Content | 1 piece |
| Condition | New |
| Weight | 40 g |
| Customs tariff number | 85044095 |
| Manufacturer | VOTRONIC Elektronik-Systeme GmbH Johann-Friedrich-Diehm-Str. 2 36341 Lauterbach Germany info@votronic.de |
