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To Link to the Mastervolt main
website
click here
MASTERVOLT BATTERIES |
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The
service battery is the most important component of your
power system: it is the ‘energy reservoir’ that provides you
with electricity on board while sailing or berthed in
harbour. You must be able to rely on your battery
completely: it is extremely important to make the right
choice of battery type and charging equipment for optimal
reliability, long life and user-friendliness. It doesn’t
matter how a battery works, as long as it is working when
you need it. There is a clear relationship between the price
of a battery and its quality. Mastervolt gel batteries not
only comply with the most stringent safety criteria, they
are also very attractive when it comes to the
price/performance ratio. |
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How often is the battery used?
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Appliances/use |
Number of cycles per week |
Recommended type of battery |
Expected life-span
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| 3 weeks (21 days/year) |
Light use: refrigerator, TV |
7 |
‘Wet’, maintenance-free or gel, 55-120Ah |
5 to 6 year |
| 12 weeks (80 days/year) |
Lighting, cooling, heating,
navigation/communication equipment, inverter + microwave, etc. |
14 - 20 |
Mastervolt gel 200 Ah/12V or 24V series wiring |
5 to 8 year |
| 24 weeks (160 days/year) |
As above. |
14 - 20 |
Mastervolt gel battery, semi traction: 2V
traction, 300/400/600Ah |
10 to 15 year |
| All year round |
As above, with other electrical
devices (eg. electric cooker or aircon unit) |
14 - 20 |
2V cells, 600-2000 Ah |
10 to 15 year |
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Batteries 12V AGM

These 12V AGM batteries are maintenance-free and the newest in the
Mastervolt production line.
CALL FOR PRICES
ManualAGM071109.pdf
(746 KB)
Users manual AGM Battery 70Ah, 90Ah, 130Ah, 160Ah, 225Ah, 270Ah
(English, Nederlands, Deutsch, Français, Castellano, Italiano)
Battery AGM 12/55
Battery AGM 12/70
Battery AGM
12/90
Battery AGM 12/160
Battery
AGM 12/225
Battery
AGM 12/270 (world's largest monobloc battery)
DISCOUNTS FOR 2 OR
MORE
BATTERIES
Batteries delivered
on a pallet. Call to check delivery cost.
Batteries 12V MVG (Gel)

Gel batteries are very suitable as service batteries due to the
fact that they can be quickly charged and have a long lifespan,
even with many charge/discharge cycles.
CALL FOR PRICES
ManualGEL12V051201ALL.pdf
(529 KB)
User manual GEL Battery MVG Series 12/25, 12/55, 12/85, 12/120,
12/140, 12/200
DISCOUNTS FOR 2 OR
MORE
BATTERIES
Batteries delivered
on a pallet. Call to check delivery cost.
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Batteries 2V Cell MVSV (Gel)
Long and intensive use of
energy can best be coped with by using 2Volt cell gel batteries.
CALL FOR PRICES

ManualGEL2V060720EN.pdf
(607 KB)
User manual 2 Volt gel cells (English)
Battery MVSV (gel) 2 /280
Battery MVSV (gel) 2 /420
Battery MVSV (gel) 2 /500
Battery MVSV (gel) 2 /580
Battery MVSV (gel) 2 /750
Battery MVSV (gel) 2 /1000
Battery MVSV (gel) 2 /1250
Battery MVSV (gel) 2 /1500
Battery MVSV (gel) 2 /1650
Battery MVSV (gel) 2 /2200
Battery MVSV (gel) 2 /2700
DISCOUNTS FOR 2 OR
MORE
BATTERIES
Batteries delivered
on a pallet. Pallet cost is £45.00.
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A battery is made up of several cells, which
produce electricity through a chemical-electrical process.
Electricity is generated by the conversion of lead and lead oxide
into lead sulphate in a battery box filled with a water/acid
solution. This process is called discharging the battery. For
recharging, the battery’s minus and plus terminals are connected
to a battery charger, an alternator, a solar panel, etc. (i.e. a
direct current source). This causes a chemical reaction, which
converts the lead sulphate back into lead and lead oxide. When the
battery is fully recharged, an explosive mixture called
oxyhydrogen is formed. An open flame or sparks in the vicinity can
therefore be extremely hazardous. With Mastervolt’s gel batteries
you can eliminate this danger.
A gel battery is a ‘normal’ lead sulphuric
acid battery available in the so-called semi-traction (12 Volt)
and traction versions (2 Volt cells). The main difference between
a gel battery and the traditional ‘wet’ battery (whether open or
sealed) is a gel substance which holds the electrolyte mix. The
gases that are produced during the charging process are converted
to liquid within the gel battery. This so-called recombination
process prevents any gases from escaping and is what makes the gel
battery so suitable for use as a service battery.
The
charge voltage is given at a surrounding temperature of 20ºC.
Mastervolt’s charging equipment with temperature sensor follows
the correct temperature curve:
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Absorption stage = 14.4/28.8V DC at 20ºC, 14.2/28.5V at 25ºC.
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Float stage = 13.8/27.6V DC at 20ºC, 13.2/26.5V at 25ºC.
If
there is no 3-stage charging equipment available, the voltage must
be adjusted to a level of under 14 or 28V at 20ºC.
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There are three main categories of batteries:
starter, service and 2 Volt. Each can be subdivided into
low-maintenance, maintenance-free and ‘normal’ rechargeable
batteries.
These batteries are designed to generate a
large amount of Amperes in a short burst of 5 to 15 seconds. Once
the engine of the vehicle or vessel is running, the battery is
recharged by the alternator. Mastervolt recommends installing a
modern semi-traction battery instead, as these are designed for
starting as well as for regular energy generation. Be careful when
buying a battery: maintenance-free starter batteries are often
sold as maintenance-free service batteries, boasting a high amount
of charge/ discharge cycles with an extremely slow discharge over
a long period of time.
These batteries are intended for long-term
use, in particular for regular power consumption with a discharge
time span of 5 to 24 hours. This type of battery is available in
open or sealed gel versions and has a life expectancy of 5 to 6
years. Expressed in cycles, the battery’s life-span is about 400
charge/ discharge cycles (in a 50% discharged state).
These have a life-span of 10 to 20 years.
This heavy-duty traction version can cope with an intensive, long
term state of discharge. Complete expiry of the battery shortens
the traction battery’s life-span less than it does with the
semi-traction versions. For daily intensive use we recommend a
traction gel battery with a suitable three-stage charge system.
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A gel battery requires less engine or
generator running time to recharge. In a power system with an
integrated inverter or Combi, it is desirable that the energy used
up is recharged in a short period of time. A gel battery is
constructed in such a way that it can recharge with a charge
current equal to 50% of the Ah capacity. A 12V/200 Ah gel battery
can therefore be charged with 100A, for example, according to the
3-stage charge characteristic recommended by Mastervolt. This
reduces charging time to a minimum.
No
more worrying about high temperatures in summer and low
temperatures in winter, or topping up with distilled water: a gel
battery does not require any maintenance whatsoever. The only
proviso is that you use a good battery charger
As
gel batteries discharge virtually none of their energy, there is
no need to keep topping up with a battery charger. The battery
will still be fully charged after half a year, although it is of
course always better to have your battery permanently connected to
a battery charger or solar panel.
Safety
comes first, and gel batteries are definitely your safest option.
The so-called low-maintenance batteries release gas while
recharging. These heavy electrolyte fumes can remain suspended in
the air, and if they come into contact with a spark or open flame
can even explode. Gel batteries, on the other hand, release
virtually no gas. Neither do they leak acid when damaged or held
at an angle, as the electrolyte is retained in the gel substance.
Mastervolt’s batteries come with a full
two-year guarantee on a global basis.
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NEWS
March 2008
Completion of WES
Tulipo installations near Coventry and in Blackburn.
----------------
Completion of
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OFFERS
Best prices NOW on
complete solar PV and Solar thermal systems.
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