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Product Description
DEFA Warmup Heater 12A 20A 35A EV Battery Charger Multicharger
Description
Setup
Contact Heater vs Coolant Heater
In order to evaluate which engine heater concept is most efficient, we have conducted professional testing. Below are the key conclusions from Euro 6 diesel engine tests:
A contact heater is most efficient for preheating the engine block and oil.
Oil temperature increases approximately 30-35°C more than with a coolant element heater.
Engine block temperature increases approximately 20-25°C more than with a coolant heater.
A contact heater (300W) typically uses 42% less energy compared to a coolant heater (550W).
Ensures evaporation of diesel in the system to work effectively in extreme cold.
Emission Comparison
Application Examples
Certification & Global Sales
Example Installations
Factory Tour
Frequently Asked Questions
Q1: What are the main benefits of using a contact heater over a coolant heater?
A contact heater is more efficient for preheating the engine block and oil directly, using approximately 42% less energy while increasing oil temperature by 30-35°C more than coolant heaters.
Q2: Does this charger support different battery types?
This multicharger is specifically designed as a Lead-Acid battery charger, suitable for a wide range of electric vehicle batteries.
Q3: What is the input voltage range for the DEFA Warmup Heater?
The system supports a stable input voltage range of 160V to 250V.
Q4: How does the heater improve vehicle performance in cold starts?
It ensures the evaporation of diesel in the system and preheats the engine block, which reduces regulated emissions and fuel consumption associated with cold starts.
Q5: Is the DEFA charger certified for global use?
Yes, the product comes with necessary certifications (as shown in the certificate section) and is available for sales in multiple international regions.
Q6: What is the production capacity for bulk orders?
Our facility has a production capacity of approximately 20,000 sets per month to meet large-scale demand.
Volt Charger
