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4.2
BATTERY CHARGE STATUS INDICATORS
4.2.1
A very flat, or sulphated, battery is indicated by the display at Fig.5.
4.2.2
A flat battery is indicated by the display at Fig.6.
4.2.3
A half-charged battery is indicated by the display at Fig.7.
4.2.4
A charged battery is indicated by the display at Fig.8.
5. OPERATION
5.1
BEFORE CHARGING
NOTE: Check the capacity (Ah) of the battery to be charged, ensuring that it is not less than the figure
given in the data sheet.
NOTE: DO NOT allow the two clamps to come into contact when the battery charger is plugged into the
mains, as blown fuses will result.
5.1.1
When the battery charger is used with a battery which is always connected to a vehicle, check the
vehicle instruction manual under the heading Electric System or Maintenance. Before charging, it
is advisable to disconnect the positive cable, which is part of the vehicle electrical system.
5.1.2
Check the battery voltage before connecting it to the battery charger. Remember the 3 caps
correspond to a 6-volt battery, while 6 caps correspond to a 12-volt battery.
5.1.3
Occasionally, there may be two 12-volt batteries in series, in which case a voltage of 24-volts is
required to charge both batteries. Ensure that they have the same specification, thus preventing
uneven charging.
5.1.4
Remove the battery charger caps to release the gas produced.
5.1.5
Ensure the electrolyte covers the battery plates. If it does not, add distilled water to cover the
plates to between 5 - 10mm.
WARNING! Battery electrolyte is a highly corrosive acid.
5.1.6
Using a hydrometer, check the electrolyte specific gravity. The approximate density, at 20 °C is:
Charged battery;
Half-charged Battery:
Flat battery:
5.1.7
Connect the RED charge clamp to the battery positive terminal (+ symbol).
5.1.8
Connect the BLACK charge clamp to the vehicle chassis, at a safe distance from the battery and
the fuel pipe.
5.1.9
Insert the power cable into the socket and set the mains switch to ON.
5.1.10 Ensure the settings on the battery charger panel are compatible with the battery specifications.
This check is carried out with the operating mode selection key in the TEST mode. See 7 in Fig.4.
5.1.11 If there is an error in the connection or the setting, the display will show the flashing message
"Err" until the problem has been solved. See Fig.9.
5.2
CHARGING
5.2.1
On the battery charger front panel, set the operating mode selection key to CHARGE. See 7 in Fig.4.
5.2.2
Set an appropriate charging current with the variable potentiometer (see 5 in Fig.4).
5.2.3
Monitor the battery voltage and charge current on the display using the V/I key (9 in Fig.4).
5.3
AUTOMATIC CHARGING
5.3.1
On the battery charger front panel, set the operating mode selection key to TRONIC. See 7 in Fig.4.
If the battery voltage is particularly low, the charger supplies a fixed current of about 2A until it
reaches the safety voltage of 1.5 volts per element. Under these operating conditions the display
shows the fixed current value alternating with "LCC". See Fig.10.
NOTE: The battery charger will constantly monitor the voltage across the battery terminals, automatically
supplying, or cutting off, the charge current as necessary.
5.3.2
Monitor the battery voltage and charge current on the display using the V/I key (9 in Fig.4).
5.3.3
When the supply current is cut off, the display will show the message 'End', see Fig.11.
5.4
SEALED BATTERIES
5.4.1
Charge the battery slowly, carefully monitoring the voltage across the battery terminals.
When the battery terminal voltage reaches 14.4V for 12V batteries or 28.8V for 24V batteries,
5.4.2
stop charging.
© Jack Sealey Limited
Fig.4
1.28.
1.21.
1.14.
Original Language Version
Fig.5
F i g . 7
TECSTART420.V2 Issue: 3(L) - 08/05/14
Fig.6
Fig.8
Fig.9
F i g . 1 0
Fig.11
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