Power Service Gold 40-M Triple Charger



£427.48 ex VAT

  More stock due shortly


This Power Service Gold unit is a 3-in1 charging system, ideal for use in motorhomes and campervans. 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 and flooded acid - as well as 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.

More Information


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 desulphation
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

What's in the box

  • 1 x unit
  • 1 x User Manual
  • 1 x pack of misc fuses
  • 1 x Mains Euro 2 pin Lead


Can the NDS Power Service Gold (PSG) units be mounted on a wall or vertical surface?

Yes, the PSG units can be mounted either vertically or horizontally, using the fixings supplied.

Customer Review

By: Received via email

I fitted the NDS Gold Service 40 to my custom-built campervan in 2017 and have been using it ever since. The key benefit to me is the 40A battery to battery charger which enables me to rapidly recharge my two 100AH Banner leisure batteries between campsites, or photo and video shoot locations if I’m working. As my vehicle also uses a compressor fridge, as well as a diesel hob/heater and a 1500W NDS inverter powering a Nespresso coffee machine it can be quite demanding on power – especially on winter shoots with the heating on - so I wanted something that could recharge the batteries rapidly and would be a fit and forget item. It can also charge from a hook-up at up to 20A and has a built-in solar regulator allowing for panels of up to 250W (I use a 150W panel and it has been fine over winter).

Even over lockdown, it managed the charge from the solar panel to keep both leisure batteries fully charged. It looks after the batteries with no intervention from me – which is perfect for a forgetful journalist! The other point to make is that including the solar regulator/charger/B2B in one compact box makes for an easy and neat install – important in a campervan where every mm of space counts. The unit itself is easy to wire, too. It also works fine with the smart alternators fitted to modern vehicles, sending far more charge to the leisure batteries than any split charge or VSR system would do. In the four years I’ve had it, it’s performed exactly as it said on the box and has proved reliable.

Peter Rosenthal (specialist technical writer for campervan and motorhome magazines)

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