ENGLISH (Original Instructions)
27
2.  Insert the battery pack (7) into the charger. The 
charging light will blink continuously indicating that the 
charging process has started.
3.  The completion of charge will be indicated by the 
charging light remaining ON continuously. The pack 
is fully charged and may be used at this time or left in the 
charger.
Note: To ensure maximum performance and life of Li-Ion 
batteries, charge the battery pack fully before first use.
Charging process
Refer the table below for the state of charge of the battery
pack.
                State of charge  SC121  SC122
 
charging
    red blink    green blink   
 red blink   
 green light   
 X   
 
 
fully charged
 
   red light
 
 
hot battery
 
  yellow light + red blink   
  X   
 
  
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HOT/COLD PACK DELAY
The SC122 (SC121) charger have a hot/cold delay 
feature. When the charger detects a battery that is hot, it 
automatically delays charging until the battery has cooled.
When the charger detects a battery that is cold, it 
automatically delays charging until the battery has warmed.
The red light will continue to blink and can’t start to charging 
procedure . Once the battery has cooled ,the charger will 
resume the charging procedure.
Stanley Li-Ion tools are designed with an Electronic 
Protection System that will protect the battery against 
overloading, overheating or deep discharge.
The tool will automatically turn off if the Electronic Protection 
System engages. If this occurs, place the Li-Ion battery on 
the charger until it is fully charged.
LI-ION BATTERY PACKS ONLY
Li-Ion batteries are designed with an “Electronic 
Protection System” that will protect the battery against 
overloading,overheating or deep discharge.
The tool will automatically turn off if the “Electronic 
Protection System” engages. If this occurs, place the Li-Ion 
battery on the charger until it is fully charged.
READ ALL INSTRUCTIONS
IMPORTANT SAFETY INSTRUCTIONS
FOR ALL BATTERY PACKS
When ordering replacement battery packs, be sure to 
include catalog number and voltage.
The battery pack is not fully charged out of the carton. 
Before using the battery pack and charger, read the safety 
instructions below. Then follow charging procedures outlined.
 f Do not charge or use battery in explosive 
atmospheres, such as in the presence of flammable 
liquids, gases or dust. Inserting or removing the battery 
from the charger may ignite the dust or fumes.
 f Never force battery pack into charger. Do not 
modify battery pack in any way to fit into a non-
compatible charger as battery pack may rupture 
causing serious personal injury.
 f Charge the battery packs only in STANLEY chargers.
 f DO NOT splash or immerse in water or other liquids.
 f Do not store or use the tool and battery pack 
in locations where the temperature may reach 
orexceed 40 ˚C (105 ˚F) (such as outside sheds or 
metal buildings in summer).
 Warning! Never attempt to open the battery pack for any 
reason. If battery pack case is cracked or damaged, do not 
insert into charger. Do not crush, drop or damage battery 
pack.
Do not use a battery pack or charger that has received a sharp 
blow, been dropped, run over or damaged in any way (i.e., 
pierced with a nail, hit with a hammer, stepped on). Electric 
shock or electrocution may result. Damaged battery packs 
should be returned to service centre for recycling.
 Caution: When not in use, place tool on its side on 
a stable surface where it will not cause a tripping or 
falling hazard. Some tools with large battery packs will 
stand upright on the battery pack but may be easily knocked 
over.
SPECIFIC SAFETY INSTRUCTIONS 
FOR LITHIUM ION (Li-Ion)
 f Do not incinerate the battery pack even if it is 
severely damaged or is completely worn out. The 
battery pack can explode in a fire. Toxic fumes and 
materials are created when lithium ion battery packs 
are burned.
 f If battery contents come into contact with the skin, 
immediately wash area with mild soap and water. 
If battery liquid gets into the eye, rinse water over the 
open eye for 15min or until irritation ceases. If medical 
attention is needed, the battery electrolyte is composed 
of a mixture of liquid organic carbonates and lithium 
salts.
 f Contents of opened battery cells may cause 
respiratory irritation. Provide fresh air. If symptoms 
persists, seek medical attention.
 Warning! Burn hazard. Battery liquid may be flammable 
if exposed to spark or flame.
TRANSPORTATION
STANLEY batteries comply with all applicable shipping 
regulations as prescribed by industry and legal standards 
which include UN Recommendations on the Transport of 
Dangerous Goods; International Air Transport Association 
(IATA) Dangerous Goods Regulations, International 
Maritime Dangerous Goods (IMDG) Regulations, and 
the European Agreement Concerning The International 
Carriage of Dangerous Goods by Road (ADR). Lithium-
ion cells and batteries have been tested to section 38.3 of 
the UN Recommendations on the Transport of Dangerous 
Goods Manual of Tests and Criteria.