PowEx PX2408M User Manual

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Fully Automatic Battery Charger

Model: PX2408M

User’s manual and important safety information.

This product has been designed to meet the following

Australian Standards (AS), New Zealand Standards (NZS) and

European Compliance (CE);

AS/NZS 60335.2.29:2004 (Approved Battery Chargers)

AS/NZS 3696.14 (Approved for use with Wheelchairs)

CE (European Conformity)

- - - - - - - - - - - - - - - - - - - WARNINGS - - - - - - - - - - - - - - - - - - - - -

 Read instructions prior to use. These instructions form part of the warranty conditions.
 This appliance must not be used or played with by infirm persons or children.
 If using generator power, please use a Surge Protector to protect the unit from voltage

spikes (EG: Dick Smith part number: M7404)

 Do not attempt to use the charger if it has been dropped or damaged.
 Never attempt to charge a damaged battery, frozen battery or non-rechargeable battery.
 Do not use the charger in a closed area or poorly-ventilated area.
 Never smoke, use an open flame, or create sparks near a battery or charger during

charging operation as this may cause an explosion / explosive gas.

 Do not operate the charger if the cord or plug is damaged.
 Do not disassemble the charger. Take it to a qualified person if a repair is required. (No

serviceable Parts inside)

 Suitable for lead-acid chemisty batteries only. Never try and charge Lithium types with this

model.

This device will recharge the battery set to 80% of the rated capacity in a period not
exceeding 8-hours.

FEATURES

Congratulations on purchasing an AS/NZS approved PowEx fully automatic switched-mode
battery charger and maintainer.

 High frequency, High Efficiency Switching Mode design
 IP51 rating (“drip proof” as required by Australian & NZ Standards for use with

wheelchairs)

 Microprocessor controlled
 Suits all Sealed Lead-Acid chemistry batteries (both AGM & Gel types).
 Heavy-duty cables with Amphenol (Cannon) XLR type output connector.

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CONTROL AND INDICATORS

1. Charging Status Display LED
Fault – RED (Refer to LED STATUS INDIACTOR TABLE on Page 4)

Charging Process - Orange
Fully Charged - Green

2. ON / OFF Switch

Main Power Switch for the Charger.

RECOMMENDED BATTERY CAPACITY

The maximum recommended battery capacity for both the PX2408M (24Volt 8Amp) battery
charger is 85Ah.
We always recommend that you check the Battery Manufacturers specifications before using
this charger.

OPERATING INSTRUCTIONS

The PowEx Battery Charger is easy to operate and requires no technical experience.

1. Connecting the Battery charger to your Battery

(a) Simply push the round charger plug into the Battery Charge socket of your wheelchair

or scooter, ensuring the pins are not stressed and lined up straight and correctly.

2. Connect the Battery Charger to AC mains (230-240Vac) power and turn ON.

(a) Switch the Battery Charger ON and the Charger will automatically start.

(Note: If the Fault Indicator LED illuminates or flashes Red, please check your

connections.

Refer to Trouble Shooting Page / LED STATUS INIDCATOR TABLE for further
information)

NOTE: The charger has been designed to be left turned on and switching the
charger on-off to connect/reconnect is not necessary.

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The Charging process

The three LED’s will indicate the Charging Stages.
The charging stages are as follows:

Charging (LED colour orange)

The charger will indicate “Charging” for all of the four of the initial charge phases;

 Soft Start: Note only occurs if the initial battery voltage is

below 23V. Output will be limited to 4Amps during this time.

 Bulk Charge. Charger output will be constant at the maximum

output of 8Amps until the voltage rises to the Absorbtion level.

 Absorbtion: This stage charges the battery using a constant

voltage of 29.0V until the battery capacity is approx. 80%.

 Initial Float: For the first 4 hours of the Trickle charge phase

Full (LED colour Green)

All of the first four charge phases are complete. Battery set is now fully charged.
It will be maintained at a safe constant “Float” or “Trickle Charge” voltage of 27.4Volts.

Leave the charger turned on and connected to keep the batteries maintained at a
100% state of charge to maximise their service life.

3. Disconnecting the Battery charger from Battery.

(a) Switch the Battery Charger OFF then switch the mains power OFF.
(b) Disconnect the Battery Charger from the battery charge socket.

Leaving the charger connected and switched ON?

This charger has been designed to be left permanently switched on. Some users question if
this will increase their power bill, and want to turn it off. While you can switch the charger off
when the batteries are Full, the very minor increased cost of running the charger for a year
(approx. $20-30 PA) is grossly offset by the extension in battery life and reduction of
down-time that can be achieved and inconvenience of having the scooter/wheelchair being
serviced.