Multi-Battery Ready:Works with 12V AGM, Flooded, Gel, and Lithium batteries. Simply use the Mode Selection Switch to choose the correct battery type for flexible and safe upgrades.
Alternator Friendly:Supports both smart and traditional alternators through the 12V starter battery connection.
Built for Any Setup:Ideal for RVs, vans, boats, and off-grid systems, minimizing compatibility issues and installation effort.
Charge Smarter, Last Longer
Adaptive Charging for Lithium:Adaptive Charging for Lithium- 2-stage charging safely reactivates over-discharged lithium batteries and charges them to 100%.
Optimized Lead-Acid Charging:3-stage charging maximizes battery life and charges to 100%.
Keep Your System Safe
Smart Circuit Protection:Guards against over-voltage, over- temperature, and reverse polarity to keep your system safe.
Battery Isolation:Prevents reverse current between batteries, protecting both the starter and auxiliary batteries.
Peace of Mind:Ensures safe, worry-free operation in RVs, vans, boats, and off-grid systems.
Safe, Reliable Battery Operation
Engine-Safe Charging:D+ ignition terminal charges only when the engine is running, safeguarding the starter battery.
Low-Current Mode:LC terminal supports small alternators or weak power sources, preventing system overload.
Temperature-Adaptive Charging:RJ11 sensor port adjusts voltage for cold or hot environments to extend battery life (not for lithium batteries).*D+, LC cables, and a temperature sensor are not included.
Specifications
Model
RS-DC20
RS-DC40
RS-DC60
Product Name
20A Battery Charger
40A Battery Charger
60A Battery Charger
Input Nominal Voltage
12VDC
12VDC
12VDC
Operating Voltage Range
10–16VDC
10–16VDC
10–16VDC
Output Nominal Power
250w
500w
750w
Output Nominal Current
20A
40A
60A
Operating Current Range
18-22A
37-43A
55-65A
Weight
4.0 Ib
4.9 lb
6.2 Ib
Dimensions
8.4 × 7.4 × 3.1 in
10.3 × 7.4 × 3.1 in
12.3 × 7.4 × 3.1 in
Efficiency
>85%, @14VDC, 30% load
>85%, @14VDC, 30% load
>85%, @14VDC, 30% load
Battery Charging Mode
2-stage for lithium; 3-stage for lead-acid
2-stage for lithium; 3-stage for lead-acid
2-stage for lithium; 3-stage for lead-acid
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