Rechargeable Li-ion Battery Pack

Principle Routes of Exposure

Skin contact, Skin absorption, Eye contact, Inhalation, and Ingestion : NO SYMPTOMS OF EXPOSURE Skin contact No effect under routine handling and use. Skin absorption No effect under routine handling and use. Eye contact No effect under routine handling and use. Inhalation No effect under routine handling and use. 4. FIRST AID MEASURES INHALATION, EYE CONTACT, and SKIN CONTACT : Not a health hazard. INGESTION If swallowed, obtain medical attention immediately. If exposure to internal materials within cell(pack) due to damaged outer casing, the following actions are recommended. INHALATION Leave area immediately and seek medical attention. EYE CONTACT Rinse eyes with water for 15 minutes and seek medical attention. SKIN CONTACT Wash area thoroughly with soap and water and seek medical attention. INGESTION Drink milk/water and induce vomiting; seek medical attention. 5. FIRE FIGHTING MEASURES 5.1 GENERAL HAZARD Cell is not flammable but internal organic material will burn if the cell is incinerated. Combustion products include, but are not limited to hydrogen fluoride, carbon monoxide and carbon dioxide. 5.2 EXTINGUSHING MEDIA Use extinguishing media suitable for the materials that are burning. 5.3 SPECIAL FIREFIGHTING INSTRUCTIONS If possible, remove cell(s) from fire fighting area. If heated above 125°C, cell(s) can explode/vent. 5.4 FIREFIGHTING EQUIPMENT Use NIOSH/MSHA approved full-face self-contained breathing apparatus (SCBA) with full protective gear. 6. ACCIDENTAL RELEASE MEASURES 6.1 ON LAND Place material into suitable containers and call local fire/police department. 6.2 IN WATER If possible, remove from water and call local fire/police department. 7. HANDLING AND STORAGE 7.1 HANDLING No special protective clothing required for handling individual cells.

Storage

Store in a cool dry place. 8. EXPOSURE CONTROLS//PERSONAL PROTENTION 8.1 ENGINEERING CONTROLS Keep away from heat and open flame. Store in a cool dry place. 8.2 PERSONAL PROTECTION Respirator: Not required during normal operations. SCBA required in the event of a fire. Eye/face protection: Not required beyond safety practices of employer. Gloves: Not required for handling of cells. Foot protection: Steel toed shoes recommended for large container handling. 9. PHYSICAL AND CHEMICAL PROPERTIES State Solid Odor N/A PH N/A Vapor pressure N/A Vapor density N/A Boiling point N/A Solubility in water Insoluble Specific gravity N/A Density N/A 10. STABILITY AND REACTIVITY 10.1 REACTIVITY None 10.2 INCOMPATIBILITIES None during normal operation. Avoid exposure to heat, open flame, and corrosives. 10.3 HAZARDOUS DECOMPOSITION PRODUCTS None during normal operating conditions.If cells are opened, hydrogen fluoride and carbon monoxide may be released. 10.4 CONDITIONS TO AVOID Avoid exposure to heat and open flame. Do not puncture, crush or incinerate.

TOXICOLOGICAL INFORMATION

This product does not elicit toxicological properties during routine handling and use. Sensitization NO

Teratogenic Effects

NO Reproductive toxicity NO Acute toxicity This product does not contain any kinds of the following substances and halogen-type flame retardants including Chlorine and Bromide type harmful flame retardants which are listed in Appendix of TCO documents and relevant international ECO requirements: Polybromated Biphenyls (PBB) Polybromated Diphenylethers (PBDE) Polychlorinated Biphenyls (PCBs) Polychlorinated Terphenyls(PCTs) Polychlorinated Paphthalene(PCN) Chlorinated Paraffins(C10-C13) Chlorofluorocarbons(CFCs) Polyvinyl Chloride(PVC) Carbon Tetrachloride None of the following substances will be exposed, leaked, or emitted during transportation, storage or any operation and any temperature condition:

ECOLOGICAL INFORMATION

The batteries do not contain mercury, cadmium or other heavy metals.

Disposal

Considerations Dispose by incineration or burial at permitted waste treatment and/or disposal sites. Batteries do not contain hazardous materials according to EC directives 91/157/EEC and 93/86/EEC. For large quantities a disposal service is offered upon request. 14. Transport information With regard to transport, the following regulations are cited and considered: - The International Civil Aviation Organization (ICAO) Technical Instructions (2014~2015 Edition) - The International Air Transport Association (IATA) Dangerous Goods Regulations (55th edition Packing Instruction 965 Section II or IB is applied as appropriate. Each package is capable of withstanding a 1.2m drop test in any orientation without damage to cells or batteries contained therein, without shifting of the contents so as to allow battery to battery contact and without release of contents. There is no hazard in accordance with the UN recommendation tests (UN Manual of Tests and Criteria, Part ΙΙΙ, sub-section 38.3) - The International Maritime Dangerous Goods(IMDG) Code(Edition 2010,Special Provisions 188,230,310&957 for UN3480/3481 Lithium-Ion Battery , Packing Instruction P903 for Lithium-ion batteries) - US Department of Transportation (DOT) 49 Code of Federal Regulations 15. Regulatory Information: Local hazardous waste disposal laws. This product is made from materials with no detectable mercury.

Further information

The information contained in this Safety data sheet is based on the present state of knowledge and current legislation. This safety data sheet provides guidance on health, safety and environmental aspects of the product and should not be construed as any guarantee of technical performance or suitability for particular applications. OSHA Hazard requirement, or to the Canadian WHMIS requirements and the sheets are supplied as a service to our customer. 1. PRODUCT AND COMPANY IDENTIFICATION Product name Lithium Ion Batteries Model B7-A2Z0-0008 Rating 3.7V 4800mAh 17.7Wh Company: Guangzhou TWS Electronics Limited Address: No.39 Nanyunsan Road, Science Park, Hi-Tech Industrial Development Zone Guangzhou,P.R.China,510663 Manufacturer: Guangzhou TWS Electronics Limited Address: No.39 Nanyunsan Road, Science Park, Hi-Tech Industrial Development Zone Guangzhou, P.R. China. 510663 Telephone no. + 86-20-22215111 Fax no. +86-20-22213268 2. INGREDIENTS Battery Cell Components Content (wt%) CAS # Lithium Cobalt Dioxide less than 38wt% 12190-79 (LiCoO2) Lithium Hexafluorophosphate less than 3wt% 21324-40-38 (LiPF6) Ethylene Carbonate (C3H4O3) less than 6wt% 96-49-1 Chain Carbonate ( - ) less than 8wt% Graphite (C) less than 20wt% 7782-42-5 Lead (Pb) less than 0.1wt%(1000ppm) Mercury (Hg) less than 0.0005wt%(5ppm) Note: The others 25% includes the below material AL(Positive Base Film,Cap,Can,Tab) Cu(Negative Base Film) Ni(Tab,Terminal) Fe(Terminal) Resin(PP,PE,PET)(Separator,Plastic Parts,Insulator) Circuit Module

Hazardous Ingredients

CAS NUMBER Lead <0.1 7439-92-1 Mercury 0 7439-97-6 Chromium 0 7440-47-3 Cadmium 0 7440-43-9 Plastic case and Si2O 0 N/A Plastic Parts and Paints % CAS NUMBER Polyclorinate More than 81 wt% 25971-63-5 Flame Retardant Less than 12 wt% Elastomer Less than 7 wt% 3. HAZARDS IDENTIFICATION PROTENTIAL HEALTH EFFECTS PRIMARY ROUTES OF ENTRY Skin contact, Skin absorption, Eye contact, Inhalation, and Ingestion : NO SYMPTOMS OF EXPOSURE Skin contact No effect under routine handling and use. Skin absorption No effect under routine handling and use. Eye contact No effect under routine handling and use. Inhalation No effect under routine handling and use.