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1. If the battery terminals are corroded, or dirty, clean them with a suitable
wire brush
2. Attach Positive Clamp (Red) (11) to positive battery terminal
3. Attach Negative Clamp (Black) (10) to negative battery terminal
4. Check that clamps are securely connected, and that they will not loosen
during charging process
5. Check the Voltage Switch (4) is set correctly and the Charge Rate Switch (6) is
set to 'min' then connect to the mains supply to commence charging
Operation
Charging battery
WARNING: Only use the 'BOOST' position of the Charge Rate Switch (6) for a
short amount of time. Do not leave the battery unattended while in 'BOOST'
charging mode.
WARNING: Never charge a battery where the water level is low. These will
produce a higher level of explosive/flammable gas and damage the battery.
IMPORTANT: This charger is not suitable for charging AGM, gel, VRLA (valve-
regulated lead acid) or maintenance-free type batteries. It is suitable for wet cell
lead acid batteries only.
IMPORTANT: This is a single-stage manual charger. It has no automatic
functionality and does not switch off charging when the battery is fully charged.
IMPORTANT: Ensure the battery is in a well-ventilated area before commencing
charging to prevent the build up of flammable gases.
IMPORTANT: This is an earthed device and must be connected to an earthed
mains socket.
IMPORTANT: It is recommended to use this battery charger to charge only one
battery at a time. Full information regarding how to charge batteries in series
or parallel with this charger is beyond the scope of this manual. However it is
important to match: voltage, capacity, state of charge, relative age and ideally
brand and model of each battery to ensure correct charging for both series and
parallel. It is also important that battery banks have a final voltage of 12V or 24V
and the combined Ah rating is within the range stated in the specification.
• Check that the Voltage Switch (4) is positioned correctly for the voltage of the
battery being charged
• Connect the battery charger to the mains power supply
• Set the Charge Rate Switch (6) to an appropriate position for the battery
being charged
Note: Batteries should only be charged at a current equal to 1/10 of their Ah
rating (e.g. a 100Ah battery should not be charged at a current greater than 10A),
if the battery has been allowed to deep discharge do not charge at a rate greater
than 1/20 of their Ah rating
• The charge rate can be monitored by referring to the Ammeter (1). If the
charge rate is too high, move the Charge Rate Switch (6) to the 'MIN' position
• For a quick charge to refresh a partially drained battery, allow 5-10 minutes
charging time with the Charge Rate Switch set to the 'BOOST' position
• As the battery charges, the charge rate will gradually decrease. When the
reading on the Ammeter (1) reaches '0', the battery is fully charged.
Note: Regularly monitor the Ammeter so you can switch off the battery charger
as soon as the battery is fully charged.
• When charging very cold batteries, the initial charge rate may increase as the
battery warms. Do not attempt to charge a frozen battery
• Internally damaged (shorted) batteries will draw very high current, without
charging. If the battery has been charging for 5-10 minutes and shows no
reduction in charging current, the battery may be damaged. Stop charging
and have the battery professionally tested
12/24V Battery Charger
• Disconnect the Negative Clamp (Black) (10)
• Disconnect the Positive Clamp (Red) (11)
• Refit battery in vehicle if removed, ensuring positive terminal is connected
before the negative terminal.
IMPORTANT: Disconnect the charger from the mains power supply, then
disconnect the battery after use. Leaving the battery connected may result in
overcharging and permanent battery damage.
Maintenance
WARNING: Always ensure that the battery charger is disconnected from the
mains power supply before performing any maintenance procedure.
Replacing the DC Fuse
IMPORTANT: Disconnect the charger from the mains supply and battery.
The DC Fuse (3) protects the DC output circuit of the battery charger. The DC
Fuse may blow if the clamps are allowed to touch each other, the battery has an
internal fault, the clamp connections to the battery are reversed or there is a fault
with the car electrics (if the battery is charged in the vehicle).
When the DC Fuse blows, correct the issue that caused the DC Fuse to blow and
replace with a good quality fuse of the same rating as previously fitted (see
specification).
Replacing the 230V Fuse
WARNING: Disconnect product from the power supply. Disconnect any batteries.
Remove the 230V Fuse (5) by unscrewing the fuse cover with a slotted
screwdriver. Remove and dispose of the blown fuse. Replace with a good quality
fuse of the correct rating (See Specification).
Cleaning
• Keep your machine clean. Do not allow waste to collect on any part of
the tool.
Always clean dust and particles away and never allow ventilation holes to
become blocked as this will prevent the charger from cooling. Use a soft brush,
dry cloth or vacuum to clean the machine.
Storage
• Store this tool carefully in a secure, dry place out of the reach of children
Disposal
Always adhere to national regulations when disposing of electrical equipment
that is no longer functional and are viable for repair.
• Do not dispose of waste electrical and electronic equipment (WEEE), with
household waste
• Contact your local waste disposal authority for information on the correct
way to dispose of electrical equipment
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