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Eastwood Technical Assistance: 800.544.5118  >>  techelp@eastwood.com

SPECIFICATIONS

•  Three modes: 12-volt/2 Amp, 12-volt/10 Amp and 12-volt/50 Amp engine start.
•  Lead-Acid/Gel-cell and AGM (absorbed glass mat) battery type settings.
•  Built-in meter Ammeter displays charge level in amps.
•  Heavy-duty transformer and rectifi er.
•  Built-in Circuit Overload protection.
•  Automatic Reverse Polarity detection 

(requires a minimum of 4 volts DC at the battery terminals)

•  Heavy-duty cables and clamps are corrosion-resistant for better connections.
•  Connect to side-or top-mount battery terminals.
•  Ideal for charging or boosting during winter season when the starting performance 

of vehicle batteries is lowered by cold or extreme weather conditions.

•  Minimum battery voltage for charger to operate = 2.5 volts.
•  Input power requirements = 120 V AC, 60 Hz., 310 Watts.

The 

Rockwood 2/10/50 Amp Battery Charger/Starter

 is designed with the most current 

intelligent switching circuitry and technology to safely keep 12 volt automotive, marine, motorcycle, 
lawn equipment and powersports batteries at peak power and effi ciency. It is fully automatic with 
reverse polarity protection and is switchable for use on standard Lead/Acid, AGM and Gel type 
batteries as well as offering a choice of 2 Amp or 10 Amp Charging. In addition, the Starting feature 
will deliver up to 50 Amps of engine staring power.

READ INSTRUCTIONS! 

 

Thoroughly read and understand manual before using the 20/10/50 Amp Battery 
Charger/Starter. Save for future reference.

SAFETY INFORMATION

WARNING! 

• 

Use the Battery Charger for charging 12-volt regular, deep-cycle, sealed Lead-Acid, 
Gel-cell and AGM (absorbed glass mat) batteries only. It is not intended to supply 
power to a low-voltage electrical system other than in an automotive application. 

•  Perform all charging procedures in a safe, dry, well-ventilated area. Batteries 

produce explosive gases during charging.

•  Keep Battery Charger out of reach of children. 

•  Do not operate this Battery Charger in rain or snow, or allow it to be immersed in 

water or other liquid.

•  Do not open the Battery Charger. There are no user-serviceable parts inside.

Summary of Contents for 30462

Page 1: ...BATTERY CHARGER STARTER 2 10 50 AMP INSTRUCTIONS Item 30462 ...

Page 2: ...chnology to safely keep 12 volt automotive marine motorcycle lawn equipment and powersports batteries at peak power and efficiency It is fully automatic with reverse polarity protection and is switchable for use on standard Lead Acid AGM and Gel type batteries as well as offering a choice of 2 Amp or 10 Amp Charging In addition the Starting feature will deliver up to 50 Amps of engine staring powe...

Page 3: ...an be ignited by sparks from electrical connections matches cigarette lighters etc It is important to read this manual before charging and follow the battery charging and engine starting instructions exactly each time you use this Battery Charger Never charge a frozen battery as it could explode Do not expose battery to fire or intense heat as it can explode ELECTRICAL HAZARDS Never operate or sto...

Page 4: ...ine starting Battery Type Switch Select the appropriate setting for the type of battery you are charging Lead Acid Gel or AGM Note Most automotive batteries are Lead Acid or Gel batteries If unsure of the type of battery being charged refer to the battery manufacturer for more information Red Power On Green Full Charge LED Indicator When the battery charger is plugged into AC power and while charg...

Page 5: ...ch cell until battery acid reaches level specified by battery manufacturer This helps purge excessive gas from cells Do not overfill 11 Do not operate Battery Charger in a closed in area or restrict ventilation Marine batteries must be removed from enclosures and charged on shore Circuit Breaker This Battery Charger has an internal self resetting circuit breaker that protects the Battery Charger f...

Page 6: ...auge metal part of the frame or engine block 7 For positive grounded vehicle connect negative BLACK charger clamp from Battery Charger to negative NEG N ungrounded terminal of battery Connect positive RED charger clamp to vehicle chassis or engine block away from battery Do not connect charger clamp to carburetor fuel lines or sheet metal body parts Connect only to a heavy gauge metal part of the ...

Page 7: ...lines or sheet metal body parts Connect only to heavy gauge metal part of the frame or engine block 6 For positive grounded vehicle connect negative BLACK charger clamp from Battery Charger to negative NEG N ungrounded terminal of battery Connect positive RED charger clamp to vehicle chassis or engine block away from battery Do not connect charger clamp to carburetor fuel lines or sheet metal body...

Page 8: ...eter Reading Battery slow to charge or will not charge Unplug Battery Charger and check terminal condition and connections Remove and clean battery terminals and cable ends Check Battery Charger Cable Clamp connections Wiggle the clamp while holding onto terminal to allow clamp teeth to bite into terminal Check that the correct Charge Rate switch position has been selected for the battery being ch...

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