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Overcharge Test and Single Cell Batteries

Overcharge Test and Single Cell Batteries. Overcharge Test : Single Cell Battery. Scope 38.3.2

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Overcharge Test and Single Cell Batteries

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  1. Overcharge Test and Single Cell Batteries

  2. Overcharge Test : Single Cell Battery • Scope 38.3.2 • 38.3.2.1 All cell types shall be subjected to tests T.1 to T.6 and T.8. All non-rechargeable battery types, including those composed of previously tested cells, shall be subjected to tests T.1 to T.5. All rechargeable battery types, including those composed of previously tested cells, shall be subjected to tests T.1 to T.5 and T.7. In addition, rechargeable single cell batteries with overcharge protection shall be subjected to test T.7. A component cell that is not transported separately from the battery it is part of needs only to be tested according to tests T.6 and T.8. A component cell that is transported separately from the battery shall be tested as a cell. • Definitions • “Cell” means a single encased electrochemical unit (one positive and one negative electrode) which exhibits a voltage differential across its two terminals. • “Single cell battery” means a single electrochemical unit fitted with devices necessary for use, for example, case, terminals, marking and protective devices. • Concern • Misinterpretation of application of T7 Overcharge test on single electrochemical unit which contains protective devices and not ready for general users in the market

  3. Overcharge Test : Single Cell Battery • Scope 38.3.2 • 38.3.2.1 All cell types shall be subjected to tests T.1 to T.6 and T.8. All non-rechargeable battery types, including those composed of previously tested cells, shall be subjected to tests T.1 to T.5. All rechargeable battery types, including those composed of previously tested cells, shall be subjected to tests T.1 to T.5 and T.7. In addition, rechargeable single cell batteries with overcharge protection shall be subjected to test T.7. A component cell that is not transported separately from the battery it is part of needs only to be tested according to tests T.6 and T.8. A component cell that is transported separately from the battery shall be tested as a cell and subjected to tests T.1 to T.6 and T.8. • Definition • “Single cell battery” means a single electrochemical unit fitted with additional devices necessary for use, for example, case, terminals, marking and protective devices.

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