Everpower Electronics EPA 1204, EPA 1210, EPA 1207, EPA 1205, EPA 1215 Instruction Manual

7-STAGE AUTOMATIC

BATTERY CHARGER

MCU CONTROLLED & HIGH FREQENCY SWITCHMODE

Instruction Manual

Please read user manual carefully before use.

1

◆ Explosive gases may escape from the battery during charging. Prevent
flames and sparks. Provide adequate ventilation.

◆ Before charging, read the instructions.

◆ For indoor use. Do not expose to rain.

◆ For charging 12 Volt or 24 Volt lead acid batteries ONLY.

◆ Disconnect the 110V/220-240V AC mains supply before making or breaking

the connections to the battery.

◆ The battery charger must be plugged into an earthed socket-outlet.

◆ Connection to supply mains is to be in accordance with National wiring rules.

◆ Do not attempt to charge non-rechargeable batteries.

◆ Never charge a frozen battery.

◆ If the AC cord is damaged do not attempt to use. It must be replaced or

repaired by a qualified person.

◆ Corrosive substances may escape from the battery during charging and
damage delicate surfaces. Store and charge in a suitable area.

◆ Ensure all vehicle accessories including lights, heaters, appliances etc are
turned off prior to charging.

◆ This appliance is not intended for use by young children or infirm persons
unless they have been adequately supervised by a responsible person to
ensure that they can use the appliance safely.

◆ Young children should be supervised to ensure that they do not play with the
appliance.

1. WARNING

7-STAGE AUTOMATIC CHARGING

This is a fully automatic battery charger with 7 charge stages.

Automatic charging protects your battery from being overcharged. So you can
leave the charger connected to the battery indefinitely.

7-stage charging is a very comprehensive and accurate charging process that
gives your battery longer life and better performance compared to using
traditional chargers.

7-stage chargers are suitable for most battery types including Calcium, Gel and
AGM batteries. They may also help restore drained and sulphated batteries.

The 7 stages are:
Desulphation ; Soft Start; Bulk; Absorption; Battery Test; Recondition and Float.

2. FEATURES

2

Desulphation

The Desulphation stage may break down sulphation that occurs in batteries that
have been left flat for extended periods of time, returning them back to full charge.
sulphation occurs when lead-sulphate hardens and clogs up the battery cells.

Soft Start

A preliminary charge processes that gently introduces power to the battery. This
protects the battery and increases battery life.

Bulk (Constant Current)

Bulk mode charges the battery at the maximum rate (constant current) putting a
large amount of power into the battery in a short amount of time. This stage will
charge the battery to approximately 80%, until the voltage reaches 14.4 volts for
12V charger or 28.8 volts for 24V charger.

Bulk mode for the charging cycle. The start phase continues until the battery's
terminal voltage has risen above the set limit, at which point the charger
switches to bulk charging. If the terminal voltage has not passed the voltage
limit within the time limit, the charger switches to fault mode (lamp ③ solid) and
discontinues the charging. If so, the battery is faulty or its capacity is too large.

Absorption (Constant Voltage)

The charge rate slows down so the battery can absorb more power and reach
100% charge. The voltage remains at a constant 14.4 volts for 12V charger or

28.8 volts for 24V charge while the current is gradually reduced until no more
power can be added without over-charging the battery.

Battery Test

An automatic battery test is conducted immediately after the absorption stage.
The test monitors the voltage for 90 seconds to determine if the charge was
successful.

◆12V charger If the voltage is below 13.2 volts (fail), the charger will initiate the
Recondition stage.

◆12V charger If the voltage is above 13.2 volts (pass), the charger will proceed
to the final stage: Float.

◆24V charger If the voltage is below 26.4 volts (fail), the charger will initiate the
Recondition stage.

◆24V charger If the voltage is above 26.4 volts (pass), the charger will proceed
to the final stage: Float.

This recondition stage can recover batteries from a deeply discharged state
increasing performance and battery life.

RECOND- This mode is used to recover deep discharged flooded batteries
where you could expect a stratified acid (high acid weight in the bottom, low on
top). Check with battery manufacturer when in doubt. Use this mode with care,
because the high voltage will cause some water loss. 16V/32V is normally no
problem for electronics in 12V/24V system. Consult your supplier when in
doubt. Life of light bulbs will be reduced at higher voltage. Try to disconnect
light from the battery during this phase. Maximum effect and minimum risk for
electronics is achieved by charging a disconnected battery.

Float

The Float stage maintains the battery at 100% charge without overcharging or
damaging the battery. This means the charger can be left connected to the
battery indefinitely.

The battery charger has an 7-step fully automatic charging cycle. the cycle is
repeated infinitely. If the terminal voltage drops below a lower limit, the charger
automatically goes back to the beginning of the charging curve.

Recondition

The battery reconditioning function is initiated automatically in the case that the
battery fails the battery test (stage 5). Failing the battery test indicates that the
absorption stage was unable to fully charge the battery. The recondition mode
will then begin to introduce a low constant current for a period of 4 hours. Then
the charger will go into float charging mode.

3

4

Using the latest technology in battery chargers, switch mode chargers convert
110V/220-240V AC power to 12V/24V DC power using electronic components
unlike traditional battery chargers that rely on heavy transformers. This allows
the charger to be light weight and compact without sacrificing on performance.

3. SWITCHMODE TECHNOLOGY

POLARITY PROTECTION

Prevents the output leads from sparking due to accidental reverse connection
or short circuit, making the charger safer to use around batteries.

OUTPUT SHORT PROTECTION

Short circuit connection of the clips: Check clips are not touching each other
OR Check the clips are correctly connected to the battery.

NON BATTERY LINK PROTECTION

BIf battery charger connects with non battery load,it will go into protection state.

FAULTY BATTERY

Bulk charging has timed out and stopped after 24 hours. Battery is faulty and
may need to be replaced.

OVER VOLTAGE PROTECTION

The 12V charger will automatically protection if the voltage is higher than 17.5V.
The 24V charger will automatically protection if the voltage is higher than 35V.

OVER TEMPERATURE PROTECTION

O

Internal temperature is above 65 C +/-5 C

COOLING FAN

The charger is fitted with a thermostatically controlled fan to cool onboard

electronics and maintain charging performance. The cooling fan will engage
automatically when there is a high load on the battery or there is sufficient heat
build up.

O

4. PROTECTIVE FEATURES

The 7-stage automatic charging consists of the following components:

LED Charge Status Display Indicates Power,
Charging and Fully Charged

Power on LED

Fault LED

Power cord

DC leads

Thermostatically contro

5

5. PRODUCT OVERVIEW

Power on LED

Fault LED

5cm

Mounting hole

Mounting flange

Switch on/off

Thermostatically conrolled cooling fan

Quick connector

DC leads