TBB Power 20A DM 12V DC to 12V DC battery-to-battery charger
TBB Power 20A DM 12V DC to 12V DC battery-to-battery charger
SKU:TBB-DM1220
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TBB POWER DM1220 DC-DC CHARGER
12V 20A Intelligent Battery-to-Battery Solution
The TBB-DM1220 is a professional-grade in-vehicle DC-DC charger engineered for modern auxiliary battery systems. Designed specifically for vehicles with Euro 6 engines and smart alternators, this unit overcomes the challenges of variable voltage outputs to ensure your leisure battery is charged quickly, safely, and completely.
Utilising the TBB Premium II multi-stage algorithm, the DM1220 provides precise charging profiles for various battery chemistries, including Lithium (LiFePO4). Its fanless, passive-cooling design ensures silent operation while maintaining a massive 96% efficiency rate.
Key Features
- ✔ Euro-6 Compatible: Handles variable alternator voltage.
- ✔ Back-Charging: Keeps starter battery topped up.
- ✔ Multi-Chemistry: Supports AGM, Gel, Wet, and Lithium.
- ✔ Silent Operation: Natural cooling without noisy fans.
- ✔ High Efficiency: Non-isolated 96% efficiency rating.
Technical Specs
| Output Current | 20 Amps |
| Input Voltage (Alt) | 13.2V - 16V DC |
| Max Efficiency | 96% |
| Battery Chemistry | Lead-Acid, AGM, GEL, LiFePO4 |
| Back Charging | Yes (0 - 3A) |
| IP Rating | IP20 |
| Operating Temp | -40°C to +70°C |
| Dimensions | 181 x 148 x 52 mm |
Compatibility / Fitment Guide
| Vehicle Type | Application | Compatibility Notes |
|---|---|---|
| Campervans / RVs | Auxiliary Battery Charging | Essential for Euro 6 VW T6, Ford Transit, etc. |
| Marine Vessels | House Bank Charging | Suitable for boats with 12V systems. |
| Utility Vehicles | On-board Equipment | Powers fridges and tools while driving. |
OEM Cross Reference
| Manufacturer | Part Number |
| TBB Power | DM1220 |
| TBB Power | NEMO DM1220 |
Installation Guide
For vehicles with smart alternators, the D+ ignition signal or ACC connection is required to enable the charger. Ensure cable gauges are appropriately sized for a 20A load to prevent voltage drop. Installation by a qualified auto-electrician is recommended.
Questions & Answers
Is this a genuine original part?
This is a premium quality genuine TBB Power unit supplied by Solarika, meeting all European safety and performance standards (ECE 10R-06).
How do I know if it is compatible?
If your vehicle features a smart alternator (standard on most vehicles post-2015/Euro 6), a DC-DC charger like the DM1220 is required to charge your auxiliary battery properly.
Does it support LiFePO4 Lithium batteries?
Yes, the DM1220 features a dedicated charging profile for Lithium (LiFePO4) batteries with a 14.2V absorption and 14.0V float setting.
Note: Please verify your system requirements against the technical specs above before purchasing. Distributed by Solarika.
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