Battery Chargers
A DC-DC battery charger takes power from the vehicle alternator and charges the leisure battery in a controlled three-stage profile while you drive. It is the practical way to keep a house battery topped up in winter or on long journeys when solar output is low. The charger also compensates for voltage drop along the cable run from the starter battery, which a simple relay or split-charge system does not.
DC-DC Battery Charger (MPPT)DC-DC
View series →Three-stage alternator-to-auxiliary charging with MPPT, 20A to 60A, for 12V systems.
| Specifications | 20A | 30A | 40A | 60A |
|---|---|---|---|---|
| Charging | ||||
| Charging current | 20A | 30A | 40A | 60A |
| Output power | 250W | 360W | 500W | 750W |
| Nominal input voltage | 12V | |||
| Input voltage range | 8V ~ 16V | |||
| Charging voltage | 13.2V – 14.7V | |||
| Efficiency up to | 90% | |||
| Idle power consumption | <0.4A | |||
| Residual ripple | <50mVeff | |||
| Battery type | Flooded, gel, AGM and lithium | |||
| Protective function | ||||
| Low voltage cut-off | 8V | |||
| Low voltage restart | 10V | |||
| High voltage shutdown | 16V | |||
| High voltage restart | 15.5V | |||
| Physical & environment | ||||
| Net dimension | 170×146×83 mm | 170×146×83 mm | 205×146×83 mm | 242×146×83 mm |
| Outer box size | 220×210×155 mm | 220×210×155 mm | 250×210×155 mm | 293×210×155 mm |
| Net weight (kg) | 1.19 | 1.19 | 1.55 | 1.87 |
| Gross weight (kg) | 1.5 | 1.5 | 1.81 | 2.15 |
| Ambient temperature | −20 °C – 50 °C | |||
| Ambient humidity | ≤95%, non-condensing | |||
| Certification | CE / FCC / RoHS | |||
Not sure which to choose?
Send us the vehicle or project details and we will size the system for you — panel wattage, controller rating, battery capacity and inverter size.