PRODUCT SPECIFICATION Z POWER

XR41 SIZE 312, 32 mAh BUTTON CELL ID-REV: 8-89-00013-8 REV. C

SCOPE:

• The content of this document will address the mechanical, electrical and environmental requirements for the rechargeable XR41 Size 312, 32mAh battery.

GENERAL:

• The XR41 size 312, 32mAh rechargeable silver zinc button cell battery is intended to be charged using the ZPower proprietary charging algorithm. It is intended to be used in place of the size 312 zinc air battery as applicable.

• The temperature at the battery throughout this document will be 25˚± 2C unless otherwise specified.

REFERENCE DOCUMENTS:

• Charge Specification 8-98-00011-5 • UL 2054, Standard for Household and Commercial Batteries

• IEC 62133, Safety for Secondary Cells and Batteries Containing Alkaline or Other Non-acid Electrolytes

• ANSI C18.M, Part 1 2015, Safety Standard for Portable Primary Cells and Batteries with Aqueous Electrolyte • IEC 60086, Primary Batteries • Directive 2006/66/EC

• Mercury Containing and Rechargeable Battery Management Act

PRODUCT SPECIFICATION Z POWER

SPECIFICATIONS

Identifier Name Description

PRS 1.1-1 Size The battery must stay within the current ANSI C18.1M, Part 1-2015 maximum dimensions during normal operating conditions over the specified battery life. Please see Figure 1.

PRS 1.1-2 Temperature Operational: 0˚C to +50˚C Storage: -40˚C to + 50˚C

PRS 1.1-3 Voltage Minimum discharge voltage: 1.2V Maximum charge voltage: 2.0V

PRS 1.1-4 Capacity The battery shall have a nominal capacity of 32 mAh with a rated drain rate equivalent to a nominal discharge rate of C/16 at or above 15oC:

Rated Drain Rate

PRS 1.1-5

Shelf Life

The fully charged cell shall retain 80% of nominal capacity, recover within 90% of nominal capacity within the first 2 cycles, and 95% of nominal capacity within first 5 cycles at rated current drain after 6 months of storage at or below room temperature.

PRS 1.1-6 Humidity testing The battery shall not exhibit any corrosion or leakage after exposure to 40˚C, 90% RH (non-condensing) for 21 days.

PRS 1.1-7 Chemical Compatibility

The battery shall not be damaged by household solvents (soap, shampoo, lotion, hair spray and cosmetics) encountered in daily usage.

PRS 1.1-8 Design life The battery shall deliver a minimum of 300 charge/discharge and maintain >80% rated capacity.

PRS 1.1-9

Cell Marking

Manufacturer (ZPOWER) Chemistry (Ag Zn) Polarity symbol on positive side of battery (+)

PRS 1.1-10 Impedance The DC resistance shall be less than 25 Ohms during the battery’s design life when discharged at the rated current drain defined in PRS 1.1-4.

PRS 1.1-11 Peak Drain The maximum continuous discharge rate for the XR41 cell while maintaining a >80% rated capacity is C/8. The maximum pulsed discharge rate is defined in PRS 1.1-4.

PRS 1.1-12

Self-discharge

The battery shall have a self-discharge rate of less than 3% of nominal capacity per month at room temperature.

PRS 1.1-13 Cell Charge Time Maximum charge time of 8 hours from a fully discharged state at room temperature.

PRS 1.1-14

Leakage/Battery Seal

The battery shall not leak or vent under normal operating conditions (temperature, storage, discharge, charge, accidental shorting, shipping); leakage is defined as mass loss > 0.5%

PRS 1.1-15 Safety Compliant with applicable clauses in UL 2054 Compliant with applicable clauses in IEC 62133

Figure 1: ANSI C18.1M, Part 1-2015 Dimension requirements for zinc-air cells (XR41 Size 312 = 7002Z)

ANSI Designation

A (Max) B (Min) ∅ (Max) ∅ (Min)

mm Inches mm Inches mm Inches mm Inches

7002Z 3.6 0.142 3.25 0.128 7.9 0.311 7.55 0.297

Quiescent Current Pulse Current Pulse Duration Pulse Period

2.0 mA 5.0 mA 100 msec 10 seconds