Rossi BT-280 User Manual Download Page 8

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12V/24V Heavy-Duty Battery Charger

E&OE

Charging a Battery

Do NOT use "Boost" charge mode for longer than necessary to "revive" the battery. A
battery may be permanently damaged if over-charged.

Calculate charge time

before

charging.

• For batteries in vehicles, consult the vehicle manufacturer instructions for connecting a charger to

the battery.

Failure to correctly follow the vehicle manufacturer instructions for in-vehicle charging

may damage vehicle electronics

• For batteries connected in series, consult a automotive electrician for

advice on how to charge the batteries.

1. Connect the

POSITIVE

charging cable to the required output connection terminal

(+12V or +24V) on the charger. To attach the cable, remove (rotate left) the
terminal nut (

), then place the "eye" of the cable connector (

) onto the terminal

screw (

). Re-install the terminal nut (rotate right) and tighten firmly by hand.

2. Connect the

POSITIVE

clamp to the battery

POSITIVE

terminal, the connect the

NEGATIVE

clamp to the battery

NEGATIVE

terminal.

3. Connect the charger to a 240VAC electrical supply and switch the supply ON.

4. Switch the battery charger ON at the

OFF

switch.

5. Set the

Charge Mode

switch to

MIN

for "normal" battery charging. Set to

BOOST

if the connected

battery is discharged to the point that normal charging cannot be used.

6. Set the

Charge Rate

switch to

for batteries under 200Ah, or

for batteries over 200Ah.

7. Set the

Charger Mode

switch to

To stop charging:

1. Switch the battery charger OFF at the

OFF

switch.

2. Switch the electrical supply to the charger OFF.

3. Remove the clamp from the

NEGATIVE

terminal, then remove the clamp from the

POSITIVE

terminal.

Jump-Starting

Consult the vehicle manufacturer instructions for jump-starting.

Failure to correctly follow the

vehicle manufacturer instructions for jump-starting may damage vehicle electronics

1. Connect the

POSITIVE

charging cable to the required output connection terminal (+12V or +24V) on the

charger.

2. Connect the

POSITIVE

clamp to the battery

POSITIVE

terminal, the connect the

NEGATIVE

clamp to

the battery

NEGATIVE

terminal.

3. Connect the charger to a 240VAC electrical supply and switch the supply ON.

4. Switch the battery charger ON at the

OFF

switch.

5. Set the

Charge Mode

switch to

BOOST

6. Set the

Charge Rate

switch to

7. Set the

Charger Mode

switch to

8. Start the engine. Do NOT crank the engine continuously for more than 3 seconds. If the engine fails to

start, set the

Charger Mode

switch to

, and charge the battery for a minimum 15 minutes.

9. Switch the battery charger OFF at the

ON / OFF

switch, then switch the 240VAC electrical supply to the

charger OFF.

10. Disconnect the charging cables

–

NEGATIVE

first, then

POSTIVE

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Summary of Contents for BT-280

Page 1: ...vember 2017 READ THIS MANUAL CAREFULLY BEFORE USE FAILURE TO DO SO MAY RESULT IN INJURY PROPERTY DAMAGE AND MAY VOID WARRANTY KEEP THIS MANUAL FOR FUTURE REFERENCE Products covered by this manual mayv...

Page 2: ...nt Do not w ear loose clothing or jew ellery w hich can be caught in moving parts Keep hair and clothing aw ay fromthe equipment Stay alert and use common sense w hen operating the equipment Do not ov...

Page 3: ...connecting the electricalcord Do NOT use equipment that has exposed w iring damaged sw itches covers or guards Do NOT use electricalequipment in w et conditions or in damp locations Do NOT use electri...

Page 4: ...nt voltage to the battery rating Always follow battery manufacturer instructions for battery charging Always follow vehicle manufacturer instructions for in vehicle battery charging or jump starting W...

Page 5: ...fety 2 Equipment Safety 4 Parts and Functions Identification 6 Wheel Assembly 6 Operation 7 Charging Currents and Times 7 Using Charging Cables 7 Charging a Battery 8 Jump Starting 8 Maintenance and T...

Page 6: ...O S S I R O S S I R O S S I R O S S I R O S S I R O S S I R O S S I R O S S I R O S S I R O S S I R O S S I R O S S I R O S S I R O S S I R O S S I R O S S I R O S S I R O S S I R O S S I R O S S I R...

Page 7: ...example a 200Ah battery being charged at 50A from a 70 discharged state would be 200 50 x 0 7 2 8 hours 168 minutes For example a 320Ah battery being charged at 36A from a 40 discharged state would b...

Page 8: ...the Charger Mode switch to and charge the battery for a minimum 15 minutes 9 Switch the battery charger OFF at the ON OFF switch then switch the 240VAC electrical supply to the charger OFF 10 Disconne...

Page 9: ...I R O R O S S I R O S S I R O S S I R O S S I R O S S I R O S S I R O I R O S S I R O S S I R O S S I R O S S I R O S S I R O S S I R O S S I R O S S S S I R O S S I R O S S I R O S S I R O S S I R O...

Page 10: ...third party approvalfroma qualified specialist for your application before use regardless of any assurances fromthe retailer or its representatives This product is not intended for use w here fail sa...

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