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NDS Power Service Plus 40 – 2-in-1 B2B + MPPT Battery Charger

The NDS Power Service Plus 40 is a 2-in-1 charger that incorporates a battery to battery charger and a solar charge controller. This NDS charger is suitable for use with lead acid, AGM and lithium leisure batteries.

  • For use with 12V systems
  • Compatible with smart alternator (Euro 5 and 6) vehicles
  • 40A charging current from B2B
  • Supports up to 250W, 20A solar array

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    Dometic NDS Power Service Plus 25 – 2-in-1 B2B + MPPT Battery Charger – PLUS40

    The NDS Power Service Plus 40 is a leisure battery charger that incorporates a battery to battery (B2B) charger and solar charge regulator. The B2B allows you to charge while you drive, arriving wherever your next adventure takes you with full batteries. The solar charge regulator intelligently collects energy from the sun and converts it into power for your electrical system. Furthermore, the unit automatically switches between B2B and solar charging, making van living as simple as can be.

    40A B2B charger

    The 40A battery to battery charger in the NDS Power Service Plus 40 allows you to recharge 40A every hour whilst you drive.

    Solar charge controller

    The solar charger in the NDS Plus 40 is suitable for use with solar arrays up to 250W and 20A.

    Optimised charging for all battery types

    NDS leisure battery chargers all incorporate Buck Booster and Opticharge technology, which stabilise charging, thus protecting battery health. The device allows you to select a charging regime depending on your battery type, whether lithium, AGM, gel, or flooded. The intelligent charger then selects a specific charging curve that matches the specific state of your batteries, using an advanced analysis algorithm. Charging happens in 5 distinct stages, including desulphation and absorption, ensuring a perfect charge and extending battery life. These functionalities are simply absent from a more basic VSR charger.

    Easy to install in an existing battery charging system

    NDS leisure battery chargers are the only devices on the market which incorporate an AUX connection. This relay shifts all the charging load to the alternator when the engine is running, neatly bypassing existing connections and ensuring the leisure battery is charged directly at maximum performance.

    Which charger should you pick?

    Not sure how many amps you need, or whether you need an isolated or non-isolated charger? Read our article about how to choose the right battery to battery charger. Need more information on solar charge controllers? We’ve got a guidebook page that explains everything.

    Products that give back

    We are members of 1% for the Planet. This means that for every product purchased from Nohma, we will give 1% of the total cost to The Honnold Foundation. The Foundation provides solar power to underprivileged communities. If you want your electrical system to have more of a positive impact, purchasing your components from us at Nohma will mean you can give back as well as powering your off-grid system.
    Product SKU: PLUS40

    Weight 1.5 kg
    Dimensions 22.8 × 13.5 × 5 cm
    Alternator minimum power


    Nominal input voltage


    Nominal output voltage


    Maximum selectable charging current


    Maximum solar input


    Mains power connection



    NDS Energy

    Smart functionality


    Product or kit


    Charge controller type


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