INSTRUCTIONS FOR:
BATTERY SUPPORT UNIT & CHARGER
12V-25A 24V-12.5A
MODEL No: BSCU25.V2
Thank you for purchasing a Sealey product. Manufactured to a high standard, this product will, if used according to these instructions
and maintained properly, give you years of trouble free performance.
IMPORTANT: PLEASE READ THESE INSTRUCTIONS CAREFULLY. NOTE THE SAFE OPERATIONAL REQUIREMENTS, WARNINGS & CAUTIONS. USE THE PRODUCT
CORRECTLY AND WITH CARE FOR THE PURPOSE FOR WHICH IT IS INTENDED. FAILURE TO DO SO MAY CAUSE DAMAGE AND/OR PERSONAL INJURY AND WILL
INVALIDATE THE WARRANTY. KEEP THESE INSTRUCTIONS SAFE FOR FUTURE USE.
Refer to
instructions
Keep away from
rain
Wear eye
protection
Wear protective
gloves
Electrical
shock
hazard
Warning
corrosive
substance
Warning:
explosive
material
Keep away
from sources of
ignition
Use in well
ventilated areas
1. SAFETY
1.1. Electrical Safety
WARNING! It is the user’s responsibility to check the following:
Check all electrical equipment and appliances to ensure that they are safe before using. Inspect power supply leads, plugs and
all electrical connections for wear and damage. Sealey recommend that an RCD (Residual Current Device) is used with all electrical
products.
If the charger is used in the course of business duties, it must be maintained in a safe condition and routinely PAT (Portable
Appliance Test) tested.
Electrical safety information, it is important that the following information is read and understood.
Ensure that the insulation on all cables and on the appliance is safe before connecting it to the power supply.
1.1.1. Inspect power supply cables and plugs regularly for wear or damage and check all connections to ensure that they are secure.
1.1.2. Ensure that the voltage rating on the appliance suits the power supply to be used and that the plug is tted with the correct fuse - see
fuse rating in these instructions.
8 DO NOT pull or carry the appliance by the power cable.
8 DO NOT pull the plug from the socket by the cable. Remove the plug from the socket by maintaining a rm grip on the plug.
8 DO NOT use worn or damaged cables, plugs or connectors. Ensure that any faulty item is repaired or replaced immediately by a
qualied electrician.
1.1.3. This product is tted with a BS1363/A 13 Amp 3 pin plug.
1.1.4. If the cable or plug is damaged during use, switch the electricity supply and remove from use.
1.1.5. Replace a damaged plug with a BS1363/A 13 Amp 3 pin plug. If in doubt contact a qualied electrician.
1.1.6. Class II products are wired with live (brown) and neutral (blue) only and are marked with the Class II symbol:
A) Connect the BROWN live wire to the live terminal ‘L’.
B) Connect the BLUE neutral wire to the neutral terminal ‘N’.
C) After wiring, check that there are no bare wires and ensure that all wires have been correctly
connected.
1.1.7. Ensure that the cable outer sheath extends inside the cable restraint and that the restraint is tight.
8 DO NOT connect either wire to the earth terminal.
Sealey recommend that repairs are carried out by a qualied electrician.
▲ DANGER! BE AWARE, LEAD-ACID BATTERIES GENERATE EXPLOSIVE GASES DURING NORMAL BATTERY OPERATION.
FOR THIS REASON, IT VERY IMPORTANT TO READ AND FOLLOW THESE INSTRUCTIONS CAREFULLY, EACH TIME YOU USE
THE CHARGING EQUIPMENT.
1.1.8. Follow these instructions and those published by the battery and vehicle manufacturers, and the maker of any equipment you intend to
use in the vicinity of the battery. Review warning marks on all products and on engines.
WARNING! Modern vehicles contain extensive electronic systems.
Check with the vehicle Manufacturer for any specic instructions regarding the use of this type of equipment on each vehicle.
No liability will be accepted for damage / injury, where this product is not used in accordance with all instructions.
© Jack Sealey Limited
Original Language Version
Recommended fuse
rating: 13Amp
BSCU25.V2 Issue:2 (H,F) - 27/03/18
1.2. Personal Precautions
9 Ensure there is another person within hearing range of your voice and close enough to come to your aid, should a problem arise when
working near a lead-acid battery.
9 Wear safety eye protection and protective clothing. Avoid touching eyes while working near battery.
9 Have fresh water and soap nearby in case battery acid contacts skin, clothing or eyes.
9 Wash immediately with soap and water if battery acid contacts skin or clothing. If acid enters eye, flush eye immediately with cool,
clean running water for at least 15 minutes and seek immediate medical attention.
9 Remove personal metallic items such as rings, bracelets, necklaces and watches. A lead-acid battery can produce a short-circuit
current which is high enough to weld a ring or the like to metal, which would cause severe burns.
9 Ensure hands, clothing (especially belts) are clear of fan blades and other moving or hot parts of engine, remove ties and contain long hair.
8 DO NOT smoke or allow a spark or flame in the vicinity of battery or engine.
1.3. General Safety Instructions
9 Familiarise yourself with the application and limitations of the charger as well as the potential hazards. Also refer to the vehicle
manufacturer’s hand book. IF IN ANY DOUBT CONSULT A QUALIFIED ELECTRICIAN.
9 Ensure the charger is in good order and condition before use. If in any doubt do not use the unit, contact your Sealey stockist.
9 Ensure the charger is disconnected from the mains supply before attaching/detaching the power clamps to/from the battery.
9 Keep tools and other items away from the engine and ensure you can see the battery and working parts of engine clearly.
9 Ensure the output of the charger is the same voltage as the battery.
9 Ensure that during charging, the charger is placed in a location where there is sufficient ventilation to prevent the build up of explosive
gases from a lead acid battery.
9 If battery has caps to access the battery fluid, remove the caps and check the fluid level before connecting the power clamps. If
necessary top-up the battery with distilled water by referring to the battery manufacturer’s instructions (Apply the personal
safety precautions described in part 1.2).
9 If the charger receives a sharp knock or blow the unit must be checked by a qualified service agent before using.
9 If the battery terminals are corroded or dirty clean them before attaching the power clamps.
9 Keep children and unauthorised persons away from the working area.
8 DO NOT dismantle the charger for any reason. The charger must only be checked by qualified service personnel.
8 DO NOT try to charge a non-rechargeable battery.
8 DO NOT try to start engine when charger is connected to battery.
8 DO NOT try to charge battery if battery fluid is frozen.
WARNING! To prevent the risk of sparking, short circuit and possible explosion DO NOT drop metal tools in the battery area, or allow
them to touch the battery terminals.
8 DO NOT allow power clamps to touch each other or to make contact with any metallic part of the vehicle.
8 DO NOT cross connect power leads from charger to battery. Ensure positive (+/RED) is to positive and negative (-/BLACK) is to
negative.
8 DO NOT pull the cables or clamps from the battery terminals.
8 DO NOT use the charger outdoors, or in damp, or wet locations and DO NOT operate within the vicinity of flammable liquids or gases.
8 DO NOT use charger inside vehicle or inside engine compartment.
8 DO NOT use the charger for a task for which it is not designed.
WARNING! DO NOT simultaneously charge batteries of different capacities or discharge levels.
WARNING! If a fuse blows, ensure it is replaced with an identical fuse type and rating. Use only Sealey genuine parts.
9 When not in use, store the charger carefully in a safe, dry, childproof location.
NOTE: This appliance can be used by children aged from 8 years and above and persons with reduced physical,
sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction
concerning use of the appliance in a safe way and understand the hazards involved. Children shall not play with the
appliance. Cleaning and user maintenance shall not be made by children without supervision.
2. INTRODUCTION
High frequency inverter type unit designed to both charge a battery and provide support for the battery during prolonged electronic diagnostic
checks. Charge cycle has 9 proles designed to optimise the condition of the battery and the speed of the charge. It will recover a discharged
battery (>2V) to almost 100% of its original capacity. Designed for use with lead acid and lead calcium batteries including WET, AGM/GEL
and VRLA types on 12V and 24V systems. Temperature sensor allows accurate charging of battery, even when cold. Safety circuitry prevents
sparks or polarity reversal. Once fully charged, battery may be left connected to be automatically conditioned and maintained.
3. SPECIFICATION
Model No: ...............................................BSCU25
Type: ..........................................9-Cycle with Support
Input Voltage:................................................230V
Input Current:.................................................2.4A
Charging Voltage: ......................................... 12V/24V
Charging Current 12V System: ...................................25A
Charging Current 24V System: ..................................12.5A
Battery Support Mode:........................................<300W
g.1
© Jack Sealey Limited
Original Language Version
BSCU25.V2 Issue:2 (H,F) - 27/03/18
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