B
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-B
C
ATTERY
TO
ATTERY
HARGER
I
NSTRUCTIONS
Thank you for purchasing the Sterling Battery-to-Battery Charger, a sophisticated product which will help you
to fast and effectively charge a second battery on board of your boat or vehicle.
Before starting to install the
unit, please read and understand these instructions completely, in order to avoid any possible safety
risks and to avoid any danger of damaging the unit or your boat / vehicle.
MULTIPLE UNITS CAN BE USED AT THE SAME TIME
S
: General Safety Precautions.
Do not install the charger in a room without ventilation; otherwise the
AFETY
unit will overheat and under perform. Fit in as cool a place as possible, this product is waterproof ( IP68)
however, do not fit underwater. Fit in as cool a place as possible to enable the product to transmit as much heat
as possible to maintain its performance.
In order to avoid the risk of fire and electrical shock make sure that all your wiring is in good and approved
condition and that the cable sizes being used answer the purpose. Do not use the charger with damaged or
unsuitable cables!
Precautions against Gas Explosions.
This equipment includes cables which may cause arcs or sparks on
installation. In order to avoid fire or explosion do not install the unit in a room which contains batteries or highly
inflammable materials or in a location that requires ignition protected equipment. This includes any space
containing gasoline-powered machinery, fuel tanks or joints, fittings or other connections between
components of the fuel system.
Precautions when Working with Batteries.
If battery acid contacts skin or clothing, wash immediately with
soap and water. If acid enters the eye(s), immediately flood eye(s) with running cold water for at least 20
minutes and seek medical attention immediately.
Never smoke or allow a spark or a flame in the vicinity of a battery or an engine.
Be extra cautious not to drop a metal tool onto a battery. It may spark or short-circuit the battery or other
electrical parts that may cause an explosion.
Remove all personal metal items such as rings, bracelets, necklaces, watches and jewellery when working
near a battery. A short circuit can produce enough power to melt metal (e.g. jewellery), causing serious burns.
Make sure the area around the charger has been well ventilated before you connect the charger. Do not charge
the batteries at least 4 hours prior to the installation to avoid the formation of explosive battery gases.
If in
doubt use a professional.
M
P
F
AIN
RODUCT
EATURES
The Sterling Battery-to-Battery Charger is a technically advanced charging device which enables you to fast
and effectively charge a second battery from your existing on-board DC electrical system. Sterling Batttery-to-
Battery Chargers are available in different versions which vary in power, input voltage and output voltage.
By now it is widely understood that the best way to charge a battery is to use 4-step charging technology which
cannot be achieved from a standard alternator. Without 4 step charging the result is that with such a standard
system you will charge your domestic or auxiliary batteries neither fast nor to their full capacity. The Sterling
Battery-to-Battery charger was developed and designed to improve this unsatisfactory charging situation on
many boats or vehicles.
The Sterling Battery-to-Battery Charger, in its standard application, is simply installed between a standard
engine battery (input) and a domestic battery (output). It will fool the alternator into working at its maximum
ability in order to ensure all its surplus power is utilized to charge the auxiliary battery bank to its maximum
capacity without allowing the starter battery to become discharged.
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