normal. This may also happen if the connections are disturbed by
movement – disconnect the AC supply then the battery connection and
begin again at section 3.1
• If the battery being charged is fitted to a vehicle with an
engine/charging system it is necessary to observe additional
precautions. Charging the battery on the vehicle can be carried out
safely only if battery connections are clean and tight, the battery is in
reasonable condition and there is no load on the battery (check any
reason for the battery discharging, was an electrical item left on!). This
charger cannot produce SPIKES which are potentially damaging to the
vehicle electronics providing the battery and the connections are good
and charger leads are connected before switching power on.
• A safety cut-out is fitted which operates quickly if the battery takes
excessive current. When the charger is switched on the cut-out may
click a few times if the battery is absolutely flat. DO NOT LEAVE THE
CHARGER UNATTENDED IN THIS CONDITION, CONTINUE TO
OBSERVE THE CHARGER UNTIL THE OVERLOAD SWTICH STOPS
RAPID CLICKING This frequent clicking should not continue for more
than a minute or two followed by occasional clicking for no more that
ten minutes except perhaps with a particularly large battery where the
period may be longer.
• It is normal for the charger to get quite hot when it is charging a
battery from flat. When it switches to READY it will slowly cool until it
is just warm. The battery may also become slightly warm while it is
charging.
• The time taken to fully charge a totally flat battery can be predicted,
but depends on the size of the battery, measured in ampere hours (Ah)
and also on the charger type. This multistage charger is quicker than a
conventional charger.
• A 35Ah battery will fully charge, from flat in around 10 hours and a 40
Ah battery will take around 14 hours. If there is not enough time to
fully charge the battery it may be used before the READY light is on.
The battery power may be close to normal but duration of output
without a further charge will be reduced. The battery should be fully
charged as soon as possible as this ensures longer battery life.
IF THE BATTERY DOES NOT CHARGE NORMALLY OR IT’S
PERFORMANCE IS POOR PLEASE READ THE FOLLOWING
SECTIONS
5 SIGNS AND SYMPTOMS
• The safety cut-out should only operate in the early stages of charging a
flat battery. It guards against high battery current and against the
battery charger overheating. Do not attempt to charge a battery which
continues to cause excessive cut-out operation.
• A battery that appears to charge quickly from flat may have a reduced
capacity die to age. The battery may have been damaged by leaving it
flat for too long. This could give poor performance in use or problems
while charging.
• Take care if the battery connections are poor or the battery is resisting
a charge due to a fault or leaving the battery flat for too long. You may
damage a car’
s electrical system if y
ou jump or bump star
t the engine
without first getting the battery to take a charge.
• A battery in good condition should not suffer from gassing at any time
while using this charger
.
This protection is just one of the advanced
features of the charger. (Gassing is the rapid formation of small bubbles
and can be detected by listening carefully to the battery). If the battery
has a faulty cell, gassing may occur in that cell or in all of the other cells
if the fault is a short circuit. (It will then behave like a 10volt battery
with a 12 volt charger)
• Do not continue to use a battery that gasses, becomes very warm
towards the end of the charging or does not show a READY light after
a full charge. The battery has little life remaining and should be
replaced.
NOTE: Keep your new battery well charged to prolong its life. If it has
to work extra hard on occasions give it an additional top up charge as
soon as it’s convenient.
• A battery should preferably be charged until it reaches full charge, since
a battery left in a partially charges state will slowly deteriorate.
6 TESTING THE BATTERY
• If a fault is suspected, check the following descriptions, the performance
can best be checked with a Volt Meter or Multimeter
NOTE: All the stated values for voltage on charge are approximate
(within 0.5 volts) as the sensor system will adjust according to the
charging conditions.
The following normal battery voltages are a useful guide
(A 12 volt battery will not usually measure 12.0 volts)
• Battery on CHARGING up to 14.5 volts
• Battery on READY 13.8 volts
• Battery just taken off charge 13.4 volts (at full charge)
This includes a SURFACE charge which can be removed by loading the
battery (headlights on for 1 min) or allowing the battery to stand idle
for 24hrs giving 12.8 volts.
• A battery with one cell completely defective will settle to a lower
voltage (10.5 volts)
• Battery half charged 12.4 volts or almost flat (12.0 volts).An old battery
may be around 0.5 volt lower on all readings.
With the charger connected to the AC supply and no battery
connected – the CHARGING mode light should be ON.
A measurement of voltage at the output leads will give a reading of
approximately 11 volts if the charger is operating correctly
With the charger connected to the AC supply and a battery connected
the POWER OUTPUT and CHARGING LED lights should be on
brightly when in CHARGING mode
• The output voltage, measured at the battery terminals, will depend on
the load. It should read between 14.5 volts and 12 volts (at rated full
load). At even higher loads the output voltage will be lower and may
even switch between different values if the output is operation
In READY mode the power OUTPUT LED may flicker, the READY LED
should be bright.
• The voltage should stabilise at 13.8 volts. If the OUTPUT LED is on full
there may be an external load on the battery or an internal battery
fault.
It is not possible to test the charger using a 12volt tester bulb as the
pr
otection system detects an incor
rect load. (I.e. it does not recognise if
as a battery of the correct polarity). Check the charger on a good
battery
WARRANTY
This warranty is in addition to the statutory rights of the purchaser.
The Tool Connection has made every effort to ensure that this product is
of the highest quality.
If this product should require service or repair at any time, it should be
returned to:
The Tool Connection Limited,
Kineton Road Industrial Estate,
Southam,
Warwickshire,
CV47 0DR
Technical Services Department: ++44 (0) 1926 818181
If returning goods for service or for any other reason please include full
details and a description of the faults.
When goods are returned for service or repair, full details of faults requiring
attention should be given, and also date of purchase.
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