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The Mastervolt DC Master is a DC-DC charger which is designed to provide quick and safe charge to the service battery, providing stabilised voltage to protect the battery and the equipment it powers. This is an isolated model which has galvanic protection between the input and the output, as well as interference supression for sensitive equipment.
Traditionally, a service battery is linked to the starter battery via a charge relay. The starter battery will be located near to the alternator and receives most of the charge current. However the service battery is usually further away. The long cables used to connect it up cause a voltage drop, leading to slower charging, which can result in failing appliances and premature failure of the battery.
Modern, fuel efficient engines are equipped with smart alternators, following regulations such as Euro 5 and Euro 6. Instead of a constant output, smart alternators provide a variable voltage; after a brief charging period, voltage is reduced and the charging stops. Furthermore, the energy produced by regenerative braking leads to voltage peaks. Service batteries coupled in the traditional way will receive hardly any charge and may be damaged by these peak voltages.
To solve these issues, Mastervolt offers the DC Master chargers, which monitors the service battery and compensates the voltage loss. There is no fan so operation of the charger is silent and these units also have 2 minutes of extra capacity, perfect for if you need a quick power boost. The DC Master unit is supplied complete with mounting bracket, screws and fasteners.
General specifications
Nominal output voltage : 13.6 V
Max. output power: 82 W
Nominal output power: 41 W
Max. output current (for 2 min. intervals): 6 A
Continuous output current: 3 A
Nominal input voltage: 24 V
Input voltage range (max.): 20-32 V DC (35 V)
Galvanic isolation: yes
Stabilised: yes
Dimensions, hxwxd: 89 x 87 x 50 mm (3.5 x 3.4 x 2.0 inch)
Weight: 0.29 kg (0.6 lb)
Compliance: CE, E-mark
Technical specifications
DC consumption: < 15 mA
Connections: fast-on
Temperature range (ambient temp.): -25 °C to 80 °C, derating > 30 °C (-13 °F to 176 °F)
Cooling: natural cooling
Protection degree: IP53
Reasons to buy your Mastervolt equipment or off-grid setup from us
We are excited by the technological improvements in this sector and know how modern lifestyles mean ever-increasing power demands, whether at home or away for your hobby. Having used and worked with this technology as it has emerged, we are not just ‘jumping on the bandwagon’, but sell this as an integral part of helping our customers make the most of their time on their boat or van. This makes us the perfect choice to advise on and supply your power system regardless of where the installation is going.
Here is what one of our customers has said, if you want to check out some more of our 5-star reviews you can see them here.
Brand | Mastervolt |
---|---|
Availability | Please choose an option to see Availability |
Shipping Type | Standard |
Product Type | DC-DC Converters |
Amps (a) | 0-50 |
Voltage | 24V to 12V |
We make sure to list our stock so you know upfront when your order will be with you, most items we send are sent on next-day service as standard however some orders to harder-to-reach locations such as Scottish Islands or Channel Islands may go on a 48-hour delivery to keep delivery costs to a minimum.
Due to the wide range of items we sell shipping costs can vary such as heavy batteries and inflatable boats require a pallet. To see the shipping cost of items use our shipping calculator below.
This is not indicative of the final shipping price, to see that add all your items to your basket or see the delivery costs below.
Delivery costs are as follows - Check the Shipping Type of your product on the 'More Information' tab.
Standard
Mainland UK - £0-150 - £6.5 / £150 - £250 - £3.25 / £250+ - Free
Isle of Mann, Jersey, Gurnsey - £0-150: £15 / £150 - £250: £7.5 / £250+: Free
Hazardous
Mainland UK - £0-150 - £6.5 / £150 - £250 - £3.25 / £250+ Free
Isle of Mann, Jersey, Gurnsey - Unable to ship due to courier restrictions
Long
Mainland UK - £0-500 - £23 / £500+ - Free
Isle of Mann, Jersey, Gurnsey - Please Call for Quote
Inflatable Boat
Mainland UK - £0-500 - £30 / £500+ - Free
Isle of Mann, Jersey, Gurnsey - Please Call for Quote
Heavy Battery
Mainland UK - £0-850 - £26 / £850+ - Free
Isle of Mann, Jersey, Gurnsey - Please Call for Quote
We have a 30-day returns policy so If for whatever reason you are not happy with your order we can exchange it for another or offer a full refund if you log it with us within 30 days of receipt of the goods.
Find out more about our returns policy here.
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