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Varta CoinPower CP 1654 A4 - User Manual

Varta CoinPower CP 1654 A4
45 pages
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Technical Handbook
CoinPower
Rechargeable Li-Ion Button Cells
Generation A4
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Summary

General Information

Definitions

Explains key terms such as Open Circuit Voltage (OCV), Nominal Capacity, and discharge rates.

Features

Details the advantages and customer benefits of VARTA CoinPower batteries, highlighting high energy density and small size.

Applications

Lists suitable modern electronic applications for CoinPower batteries, including wearables and medical devices.

General design and application criteria

Outlines criteria for selecting batteries based on operating time, current drain, voltage, temperature, and space.

Construction and electromechanical processes of CoinPower Batteries

Describes the cell housing, internal electrode winding, and the movement of lithium ions during charge/discharge.

Miscellaneous

Specification table VARTA CoinPower Batteries

Presents a table detailing VARTA CoinPower rechargeable button cells with type designation, voltage, capacity, and dimensions.

Model Number Explanation

Explains the structure of VARTA CoinPower battery model numbers, breaking down type, diameter, height, and version.

Data-Matrix Code

Details the two-dimensional data matrix codes printed on cells for traceability, including production date and identification.

Charging and Discharging

Charging

Covers standard, rapid, and fast charging procedures for CoinPower batteries, including C-rates and voltage limits.

Discharging

Discusses discharge currents, temperature ranges, and the risks and prevention of over-discharging for CoinPower cells.

Charging IC

Recommends suitable charging ICs for CoinPower batteries and explains the Constant-Current Constant-Voltage (CC/CV) procedure.

Reliability and life expectancy

Typical Cycle Performance

Shows graphs illustrating typical cycle performance under 1C and 0.2C discharge rates, indicating capacity retention over cycles.

Storage

Storage Characteristics

Details recommended storage conditions, state-of-charge (SoC), and temperature to minimize self-discharge.

Safety

Safety Tests

Lists safety standards (UL 1642, IEC 62133, UN IATA 38.3) and specific tests performed on CoinPower batteries.

Product Safety

Highlights safety features integrated into CoinPower battery components and mechanical design for safe operation.

Protection Circuit Module (PCM)

Explains the function of PCMs for battery protection against overcharge, discharge, and short circuits.

Handling Precautions and Prohibitions

General Information

Provides general safety advice for Lithium batteries, emphasizing risks like short-circuiting and mistreatment.

Charging

Specifies charging current, voltage, temperature limits, and prohibits reverse charging to ensure safety and performance.

Discharging

Defines discharge current limits, temperature range, and precautions against over-discharging.

Protection Circuit Module (PCM)

Details PCM functions required for CoinPower cells, including over-discharge prevention and overcurrent protection.

Application

Specifies intended use conditions, technician-replaceability, and required warnings for end-product manuals.

Storage

Provides guidelines for storing cells and assembled cells, focusing on proper temperature and state of charge.

Other Issues

Covers cell connection, ultrasonic welding, short-circuit prevention, assembly, and disassembly prohibitions.

Marking

Outlines requirements for end-user instructions and markings, including warnings for handling and replacement.

Battery Assembly

Single Cell Assembly

Describes standard and custom cell configurations with solder tags, wires, and insulation tape for PCB connection.

Multicellular Assembly

Explains how multiple cells can be connected in series or parallel to achieve higher capacity or voltage.

Soldering

Provides guidance on soldering CoinPower batteries to PCBs, including safe methods and prohibited techniques like reflow.

Application check list

Glossary

OEM (Original Equipment Manufacturer)

Definition of Original Equipment Manufacturer and its evolving meaning in the industry.

Battery

Definition of a battery as one or more electrochemical cells connected to provide operating voltage and current.

Cell

Definition of a cell as the basic electrochemical unit providing electrical energy.

Secondary battery

Definition of a secondary battery that can be reused after charging, unlike a primary battery.

Primary battery

Definition of a primary battery designed for single use and not rechargeable.

Separator

Definition of a separator as a film between electrodes to prevent short-circuits and maintain spacing.

Cathode

Definition of a cathode as an electrode at higher potential during discharge.

Anode

Definition of an anode as an electrode at lower potential where current flows from the external circuit.

Open circuit voltage (OCV)

The voltage of a battery when it is disconnected from external circuits.

Closed circuit voltage (CCV)

The voltage of a battery when it is connected to an external circuit.

Nominal Capacity

Capacity representing a battery's capacity, usually in ampere hours (Ah or mAh).

Nominal Voltage

The expected voltage of a battery or cell over its entire discharge cycle.

Cycle Life

The number of cycles a secondary battery can perform before failing to meet specified performance criteria.

Cut off voltage

The limiting voltage that terminates discharge, corresponding to the lower usable voltage limit.

Self-discharge

Battery capacity decline without current flowing to an outside circuit.

Energy Density

Amount of energy extracted per unit battery weight or volume (Wh/kg or Wh/l).

Overcharge

Charging a battery after it has reached the fully-charged state, leading to instability.

Overdischarge

Discharging a battery below the specified cutoff voltage, potentially dissolving the anode current collector.

Lithium-Ion Charger (CCCV)

Constant-Current Constant-Voltage charging algorithm for Li-Ion batteries.

PCM

Protection Circuit Module to protect batteries against abnormal events like over-discharge or short circuits.

PCB

Printed Circuit Board that mechanically supports and electrically connects electronic components.

THT connection

Through-hole technology for mounting electronic components onto PCBs.

SMD connection

Surface-mount device technology for mounting electronic components onto PCBs.

Varta CoinPower CP 1654 A4 Specifications

General IconGeneral
BrandVarta
ModelCoinPower CP 1654 A4
CategoryCamera Accessories
LanguageEnglish

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