NDS Energy PWS GOLD 12V 40A 3 in 1 Hybrid Charger - DC to DC, MPPT & Battery Charger

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  • Regular price £429.99
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NDS Energy PWS GOLD 12V 40A 3 in 1 Hybrid Charger - DC to DC, MPPT & Battery Charger

The NDS Power Service Gold unit is a 3-in-1 hybrid charging system, ideal for use in motorhomes and campervans, and boats. It will take care of the leisure battery by charging from the alternator (when the engine is running), from a solar panel (up to 250W) and from 240V mains as well. It can be used with any kind of lead-acid battery - Gel, AGM, flooded acid and LiFePO4 lithium batteries.

Charging is done in 5 stages including desulfation (not when set for lithium), ensuring a full recharge, as well as improving the battery's general performance and extending its life.

Installation of the Power Service Gold charger is straightforward and detailed instructions are supplied.

Technical journalist Peter Rosenthal installed a Power Service Gold charger in his self-built campervan and wrote about the installation in MMM, the UK's leading motorhome magazine. You can read the article by clicking on the link below. 

Suitable for use with "smart" alternators and lithium batteries.


  • 40A DC-DC charger compatible with all alternator types (standard, Euro 5, Euro 6 +)
  • 20A wide input voltage range (90-264V AC) mains charger
  • Solar controller with 250W max. panel capacity
  • 5-stage charging
  • Fast and deep charging of leisure batteries
  • Can be used with all lead-acid (flooded, sealed, AGM, gel etc.) and lithium batteries
  • Selectable (via jumper) multi-stage charging profiles
  • Auxiliary connection for existing systems (CBE, Sargent, Schaudt, Nordelettronica etc.)
  • Engine and leisure batteries are kept separated to prevent accidental discharge
  • Protection against over-temp, short circuit, reverse polarity, over-current, over-voltage, low-temp (lithium only)
  • LED status indicators and audible warning
  • User-replaceable fuses
  • Supplied with 2-pin Euro to IEC power lead


  • Manufacturer's product code: GOLD 40-M
    Suitable for use with smart alternators?: Yes
    Input Voltage - Volts: 12
    Output voltage - Volts: 12
    Recommended minimum output of alternator- Amps: 110
    Max. charging current - Amps: 40
    Input: Alternator, solar panel and 230v mains
    Input from alternator - V: 11.8 - 15
    Input from solar panel - V: 12 / 28v
    Conventional alternator cut-in: AUTOMATIC
    Max. Charging Current from Alternator: 40
    Max. charging current from solar panel - Amps: 20
    Max. charging current from 230V supply - Amps: 20
    Charging characteristic: 5 stage with desulfation
    Suitable for battery size - Ah: 85 - 400
    Suitable for battery types: All types of lead-acid battery inc. wet, AGM, Gel and Lithium LifePo4
    Max. power input from solar panel - Watts: 250
    Dimensions (L x W x H) - mm: 228 x 135 x 98
    Product Net KG: 1.7
    Warranty - years: 2
    weight: 1.7


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