Rechargeable Lithium Ion batteries are potentially hazardous and can present a serious FIRE HAZARD if damaged, defective or improperly used. Larger Lithium batteries and batteries used for industrial use involving high discharge current and frequent full discharge cycles require special precautions.

Caution & Prohibitions of Handling Li-ion Batteries

When using the application equipped with battery, refer to the user’s manual before usage.
Please read the specific charger manual before charging.
When the cell is not charged after long exposure to the charger, discontinue charging.
Battery must be charged at operating temperature range 0–50 °C.
Battery must be discharged at operating temperature (cell surface temperature) range -20 – 75°C.
Please check the positive (+) and negative (-) direction before packing.
When a lead plate or wire is connected to the cell for packing, check out insulation not to short-circuit.
Battery must be stored separately.
Battery must be stored in a dry area with low temperature for long-term storage.
Do not place the battery in direct sunlight or heat.
Do not use the battery in high static energy environment where the protection device can be damaged.
When rust or smell is detected on first use, please return the product to the seller immediately.
The battery must be away from children or pets.
When cell life span shortens after long usage, please exchange to new cells.

Do not short –circuit battery by your device itself.
Do not use different charger. Do not use cigarette jacks (in cars) for charging.
Do not charge with constant current more than maximum charge current.
Do not disassemble or reconstruct the battery.
Do not throw or cause impact.
Do not pierce a hole in the battery with sharp things such as nail, knife, pencil or drill, etc.
Do not use with other batteries or cells.
Do not solder on battery directly.
Do not press the battery with overload in manufacturing process, especially ultrasonic welding.
Do not use old and new cells together for packing.
Do not expose the battery to high heat such as fire.
Do not put the battery into a microwave or high pressure container.
Do not use the battery reversed.
Do not connect positive (+) and negative (-) with a conductive materials such as metal, wire, etc.
Do not allow the battery to be immersed in or wet with water or sea-water.

Caution For Battery Assembly and Packs

Pack shall meet under condition to maintain battery safety and last long performance of the lithium

rechargeable cells.

1 Installing the battery into the pack

-. The cell should be inspected visually before battery assembly into the pack.

-. Damaged cell should not be used. (damaged surface, can-distortion, electrolyte-smell)

-. Different Lot Number cells should not be packaged into the same pack.

-. Different types of cells, or same types but different cell maker’s should not be used together.

2 Design of battery pack

-. The battery pack should not be connected easily to any charger other than the dedicated charger.

-. The battery pack has function not to cause external short cut easily.

-. The design of battery pack and its structure should be reviewed physically, mechanically and electrically not to cause cell imbalance.

-. The battery pack for multiple cells should be designed to monitor the voltage of each bank.

3 Charge

-. Charging method is Constant Current-Constant Voltage (CC/CV).

-. Charging should be operating under maximum charge voltage and current which is specified in the product specification. (Article. 2.4, 2.5)

-. The battery should be charged under operating temperature specified in the product specification. (Article. 2.9)

4 Discharge

-. Discharging method is Constant Current (CC).

(In case of using the battery for mobile equipment, discharging mode could be Constant Power.)

-. Discharging should be operating under maximum discharge current which is specified in the product

specification. (Article. 2.7)

-. Discharging should be done by cut off voltage which is specified in the product specification.

(Article. 2.6)

-. The battery should be discharged under operating temperature specified in the product specification.

(Article. 2.9)

5 Protection Circuit

-. When battery packs for any applications are assembled with cells, following functions must be

designed into the battery packs and/or in the charger or charging adapter. The detailed levels, values,

conditions for each following functions should be referring to the contents specified in this Product