6
ENGLISH
POSITION OF DATE CODE 
The Date Code, which also includes the year of manufacture, is 
printed into the housing.  
Example:            
2015    XX     JN 
Year of manufacturing 
Important Safety Instructions for All 
Battery Chargers
SAVE THESE INSTRUCTIONS: This manual contains 
important safety and operating instruc tions for SC121 battery 
chargers.
  •  Before using charger, read all instructions and cautionary 
markings on charger, battery pack, and product using 
battery pack.
 
 WARNING: Shock hazard. Do not allow any 
liquid to get inside charger. Electric shock may 
result.
 
 CAUTION: Burn hazard. To reduce the risk 
of injury, charge only STANLEY rechargeable 
batteries. Other types of batteries may burst 
causing personal injury and damage.
     CAUTION: Children should be supervised to 
ensure that they do not play with the appliance.
     NOTICE: Under certain conditions, with the 
charger plugged in to the power supply, the 
charger can be shorted by foreign material. 
Foreign materials of a conductive nature such as, 
but not limited to, grinding dust, metal chips, steel 
wool, aluminum foil, or any buildup of metallic 
particles should be kept away from charger 
cavities. Always unplug the charger from the 
power supply when there is no battery pack in the 
cavity. Unplug charger before attempting to clean.
  •  DO NOT attempt to charge th
e battery pack 
with any chargers other than the ones in 
this manual. The charger and battery pack are 
specifically designed to work together. 
  •  These chargers are not intended for 
any uses other than charging STANLEY 
rechargeable batteries. Any other uses may result 
in risk of fire, electric shock or electrocution.
  •  Do not expose charger to rain or snow.
  •  Pull by plug rather than cord when 
disconnecting charger. This will reduce risk of 
damage to electric plug and cord.
  •  Make sure that cord is locat
ed so that it 
will not be stepped on, tripped over, or 
otherwise subjected to damage or stress.
  •  Do not use an extension cord unless it is 
absolutely necessary. Use of improper extension 
cord could result in risk of fire, electric shock, or 
electrocution.
  •  Do not place any object on top of charger 
or place the charger on a soft surface that 
might block the ventilation slots and result 
in excessive internal heat. Place the charger in 
a position away from any heat source. The charger is 
ventilated t
hrough slots in the top and the bottom of the 
housing.
  •  Do not operate charger with damaged cord 
or plug — have them replaced immediately.
  •  Do not operate charger if it has received 
a sharp blow, been dropped, or otherwise 
damaged in any way. Take it to an authorised 
service centre.
  •  Do not disassemble charger; take it to an 
authorised service centre when service or 
repair is required. Incorrect reassembly may result in 
a risk of electric shock, electrocution or fire.
  •  In case of damaged power supply cord the suppl
y cord 
must be replaced immediately by the manufacturer, its 
service agent or similar qualified person to prevent any 
hazard.
  •  Disconnect the charger from the outlet 
before attempting any cleaning. This will 
reduce the risk of electric shock. Removing the 
battery pack will not reduce this risk.
  •  NEVER attempt to connect 2 chargers together.
  •  The charger is designed to operate on 
standard household electrical power. Do not 
attempt to use it on any other voltage. This 
does not apply to the vehicular charger.
Save these instructions
Chargers
 
The SC121 chargers accept 10.8V Li-Ion batteries. 
These chargers require no adjustment and are designed to be 
as easy as possible to operate.
Charging Procedure (Fig. B)
LABELS ON TOOL
The label on your tool may include the following pictographs 
 along with the date code:
WARNING! To reduce the risk of injury, the user must read 
the instruction manual.
Read instruction manual before use.
 
 
Always wear safety goggles.
Always wear safety hearing protection.