DC-DC CONVERTERS AND BATTERY CHARGERS
Omnicharge DC — DC-DC charger 12/12-50 and 12/24-30
Country: Netherlands · Model: Omnicharge DC 12/12-50, 12/24-30
The Omnicharge DC DC-DC charger tops up the service battery from the vehicle's 12 V starter battery and delivers 50 A at 12 V (version 12/12-50) or 30 A at 24 V (version 12/24-30) at up to 900 W. It is installed in motorhomes, campers and service vans, including vehicles with 'smart' alternators of the Euro 6 standard and newer.
- Input
- 12 V (10–16 V), up to 65 A
- Output
- 12 V / 50 A or 24 V / 30 A
- Power
- up to 900 W
- Algorithm
- IUoUo, 3 stages, temperature compensation
Technical specifications
| Input | 12 V (10–16 V), up to 65 A |
|---|---|
| Output | 12 V / 50 A or 24 V / 30 A |
| Power | up to 900 W |
| Algorithm | IUoUo, 3 stages, temperature compensation |
| Compatibility | vehicles with 'smart' alternators (EUR 6+) |
| Control inputs | engine running signal, BMS |
| Customs codes (for reference) | |
| HS code | 8504.40 |
| UKTZED code (Ukraine) | 8504405500 |
| CN code (EU) | 85044060 |
Specifications are taken from the manufacturer’s technical documentation. Updated . Customs codes are for reference only; the final code is determined at customs declaration for the specific model.
Description
The converter steps the voltage up or down as needed, so charging of the service battery does not depend on the voltage ratio of the two batteries or on the voltage drop in a long cable. The input works in the 10–16 V range and draws up to 65 A, so the cable and fuse from the starter battery are sized for this current. Alternators with intelligent control lower the voltage while driving, and a simple split-charge relay undercharges the service battery, while the DC-DC unit removes this problem. The IUoUo algorithm in 3 stages with temperature compensation adjusts the charging voltage to the temperature. The engine running signal input enables charging only while driving, and the BMS input lets a lithium battery stop the charging.
How to choose
The choice between the two versions is made by the service bank voltage. The 12/12-50 charges a 12 V battery at 50 A, the 12/24-30 supplies 30 A to a 24 V bank, although the vehicle's onboard system stays at 12 V. For charging from shore power while parked, add a mains-powered Omnicharge2 rated 20–60 A to the system. If you only need to supply individual loads of a different voltage without a charging function, a TDC / TDCi converter rated 8–30 A is enough.
Request a price and lead time
Omnicharge DC — DC-DC charger 12/12-50 and 12/24-30. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
Does the Omnicharge DC work with a Euro 6 smart alternator?
Yes, the unit is compatible with vehicles with 'smart' alternators of the Euro 6 standard and newer. It brings the charging voltage to the required level even when the alternator lowers it while driving.
What is the engine running signal input in the Omnicharge DC for?
This signal enables charging only while the engine is running, so the 12 V starter battery is not drained when parked. The BMS input stops charging on command from the battery management system.
What current does the Omnicharge DC draw from the starter battery?
Up to 65 A at an input voltage of 10–16 V, with power up to 900 W. The cable from the starter battery and the fuse are selected precisely for this current.
Can a 24 V battery be charged from a 12 V vehicle?
Yes, the 12/24-30 version is designed for this: from 12 V at the input it gives 24 V and 30 A at the output.
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