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NDS PSB 12-80 – Battery to Battery (B2B) Charger

NDS Power Service PSB 12-80 is a DC-DC charger. It intelligently and safely charges your leisure batteries from your vehicle’s starter battery whilst driving.

  • 80A charging current
  • For use with systems with a 12V leisure battery and starter battery
  • Compatible with smart alternator (Euro 5 and 6) vehicles


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Dometic NDS Power Service DC-DC Charger 80A – 12V Battery to Battery Charger – PSB12-80

The NDS Power Service PSB 12-80 DC-DC charger is a battery to battery charger. This means it’s a leisure battery charger that charges your leisure batteries from the alternator in your vehicle. Charge while you drive, arriving wherever your next adventure takes you with full batteries.

12V battery to battery charger

The NDS Power Service PSB 12-80 is for use in systems with a 12V leisure battery and a 12V starter battery.

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 B2B 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.

Products that give back

We are members of 1% for the Planet. This means that for every product purchased from Climbingvan, 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 Climbingvan will mean you can give back as well as powering your off-grid system.

Product SKU: PSB12-80

Additional information

Weight 1.6 kg
Dimensions 20 × 17 × 6.5 cm
Alternator minimum power


Nominal input voltage


Nominal output voltage


Maximum selectable charging current


Maximum solar input


Mains power connection




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