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National Luna Dual Battery Isolator and charger DC to DC 25 + Monitor and MPPT Solar Regulator

£ 500.28 inc. VAT

10 in stock


National Luna Dual Battery Isolator and charger DC to DC 40 + Monitor and MPPT Solar Regulator including Monitor (3.5m cable)

The National Luna DC-DC charger is a DC to DC battery charger and isolator for a dual-battery system and solar charger. It charges an auxiliary or service battery from a vehicle alternator or Solar panel up to 25A output current. In addition to this, the traditional 12V and 24V vehicle alternators and variable voltage alternators are supported. The integrated MPPT solar regulator provides a maximum output power of 375W, however, it can support solar panels higher than this. Solar panel voltages up to 42V can also be connected.

The NLDC-25 features a 6-stage charge algorithm; suitable for any Lead-Acid battery type as well as automotive Lithium-Ion batteries. There are three safety stages that analyse the battery, therefore it can detect the batteries to see if they are damaged or whether they are unable to accept the charge. In addition to this, there is also a temperature compensation that is used to optimise the output voltage which helps to ensure a safe and full battery charging under a variety of conditions. Also, the NLDC-25 supports the connection of a remote monitor that displays information about the system and battery levels to the user on a high-contrast LCD screen. The NLDC-25 has an IP67 rating for harsh environments and is protected against reverse-polarity, over-voltage, over-temperature and over-current conditions.

National Luna Stock Code: BMS-30251

Features :

  • True 25A output current
  • 6-stage intelligent charge algorithm
  • 12V and 24V input
  • Smart-alternator compatible
  • 25A, 375W MPPT solar regulator
  • Supports solar panels up to 42V
  • AGM, Gel, Wet, Calcium, Lithium-Ion batteries supported
  • Battery temperature compensation for safe charging
  • Sealed to IP67 rating (waterproof)
  • Replaceable terminal block
  • Short-circuit protected
  • Reverse-polarity protected
  • Over-voltage protected
  • Over-temperature protected
  • Optional remote monitor

In the box :

  • NLDC-25 DC-DC charger
  • Universal mounting plate & fixtures
  • In-line fuses & holders
  • Temperature compensation probe
  • Installation kit including lugs and screws
  • Installation manual


Additional information

Weight 3.0 kg
Dimensions 24 × 23 × 23 cm
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