WUHAN FANSO TECHNOLOGY CO.,LTD.
S P E C I F I C A T I O N
F O R L I T H I U M B A T T E R Y
M o d e l : C R 2 4 5 0
Approved By
Department
Name
Title
Signature/Date
/
(Remarks: The above table shall be filled by customer )
Issued by ( ):
Checked by :
Approved by :
Document number( ) : FAT/JF-JSCR-316
Version number ( ) : A/0
DATE : 2019-01-02
WUHAN FANSO TECHNOLOGY CO.,LTD.
Rd.5,Sitai Industrial Park,Yongfeng Ave,Hanyang Dist,Wuhan China.
TEL:027-84453199
FAX:027-84453116
http://www.fansobattery.com
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WUHAN FANSO TECHNOLOGY CO.,LTD.
PRODUCT SPECIFICATION
1.Applicability:
This specification is applicable to the following product: Coin type manganese lithium battery CR2450
: CR2450
2.Battery type and ratings:
2.1. Battery type : |
CR2450 |
2.2.Nominal voltage : 3.0V
2.3.Nominal capacity: 600mAh (on continuous discharge at 20 under 7.5kΩ load to
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2.0V end-voltage 20 7.5kΩ 2.0V ) |
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2.4 |
Outer dimensions: |
Outer dimensions shall be as shown in Fig. 1, Battery Dimensions. |
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1“ ” |
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2.5 |
Mass : |
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Approx. 6.9 g |
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2.6 |
Production country : |
China |
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2.7Guarantee |
1 year |
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2.8 |
Terminals : |
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Materials of Positive electrode : |
SUS430/SUS430+Ni-plated |
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Negative electrode : |
SUS430/SUS430+Ni-plated |
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3.Quality requirements:
3.1 Dimensions: Dimensions of batteries when tested in accordance with Subparagraph 4.4.1 shall be as shown in Fig. 1. Battery dimensions.
4.4.1 1“ ”
3.2 Appearance: Battery shall have no deformation, dent, stain, leakage and camber or burr on their sealing members, which may adversely affect their appearance, performance and commercial value. There shall be no coatings or other foreign objects on the surface of terminals which may adversely affect actual use or performance of batteries.
电池性能
3.3Characteristics :
(1)Open-circuit voltage: Open-circuit voltage of batteries when tested in accordance with Subparagraph 4.4.3shall meet the requirement set forth in Table 1.
: 4.4.3 1
(2)Closed-circuit voltage: Closed-circuit voltage of batteries when test in accordance with Subparagraph 4.4.4 shall meet the requirements set forth in Table 1.
: 4.4.4 1
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WUHAN FANSO TECHNOLOGY CO.,LTD. [TABLE 1]
TEST ITEMS |
TEMPERATURE |
INITIAL |
AFTER 12 MONTHS |
REMARKS |
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12 |
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Open-circuit |
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Voltage |
20±2 |
3.0V TO 3.4V |
3.0V TO 3.4V |
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Closed-circuit |
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Load Resistance7.5kΩ. 0.8 |
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Voltage |
20±2 |
3.0V TO 3.4V |
3.0V TO 3.4V |
Sec. |
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7.5kΩ 0.8 |
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(3) Service life: Service life of batteries when tested in accordance with Subparagraph 4.4.5 |
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shall meet the requirements set forth in Table 2. |
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: 4.4.5 2 |
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[ TABLE 2 ] |
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TEST ITEMS |
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TEMPERATURE |
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INITIAL |
AFTER 12 MONTHS |
REMARKS |
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12 |
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Continuous Discharge Under |
Service Life |
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1400 Hrs. Or |
1372 Hrs. or Longer |
7.5kΩ Load to 2.0V End- |
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20±2 |
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Longer |
Voltage |
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≥1372 |
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≥1400 |
7.5kΩ 2.0V |
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(4)Service life after storage at high temperature: Service life of batteries when tested in accordance with Subparagraph 4.4.6 shall meet the requirements set forth in Table 3
: 4.4.6 3
[ TABLE 3 ]
TEST ITEM |
STORAGE TEMP |
STORAGE PERIOD |
REQUIREMENT |
REMARKS |
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Service Life After |
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Continuous Discharge At 20± |
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2 Under 7.5kΩ Load To |
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Storage At High |
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1372Hrs |
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2.0V End-Voltage After |
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Temperature |
60 ±2 |
20 Days |
Minimum |
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Storage. |
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≥1372 |
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,20±2 |
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7.5kΩ 2.0V |
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(5) Leakage characteristics: Batteries when tested in accordance with Subparagraph
4.5.1shall have no leakage.
: 4.5.1 4
[ TABLE 4 ]
TEST ITEM |
REQUIREMENT |
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TEST CONDITIONS |
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Temperature: 45 ± 2 , Relative Humidity: 75% |
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Leakage Characteristics |
No Leakage |
Storage: 30 Days |
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Shall Be Inspected By Visual Means |
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: 45 ± 2 , : 75% |
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: 30 |
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(6) Self-discharge: Self-discharge of batteries when tested in accordance with
Subparagraph 4.5.2 shall be as set forth in Table 5.
: 4.5.2 5
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WUHAN FANSO TECHNOLOGY CO.,LTD. |
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[ TABLE 5 ] |
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TEST ITEM |
REQUIREMENT |
TEST CONDITIONS |
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Continuous Discharge Under 7.5kΩ Load To 2.0V End-voltage |
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Self-discharge |
2% or Below |
After 12 Months Storage At 20 . |
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( To Obtain From The Mean Value Of The Same Lot ) |
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2% |
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20 12 7.5kΩ 2.0V |
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4.Testing:
4.1Test conditions :
4.1.1Initial test :Initial test must be done within 1 months from delivery
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4.1.2Temperature and humidity: Unless otherwise specified elsewhere, tests shall be conducted at ordinary temperature (20±2 ) and ordinary humidity (55±20%RH).
(20±2 )
(55±20%RH)
4.2 Storage of test specimen batteries :
4.2.1Specimen batteries to be tested shall be kept at the ambient temperature of 25 or below and at the relative humidity of 75% or below.
25 75%
4.2.2 Storage at less than -20 can deform the plastic parts and may cause a leakage.
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4.2.3To prevent self-discharge caused by corrosion or decrease of insulation, humidity during storage shall be less than75%RH without dewing on battery.
75%RH
4.3 Measuring instruments and devices :
4.3.1Dimensions: Outer micrometers specified inJJG26-95, dial gauges specified in JIS B 7503, and vernier callipers specified in JJG30-92 or those having equal or better accuracy shall be used.
JJG26-95 , JIS B 7503 , JJG30-92
4.3.2DC voltmeters: The tolerance shall be ±0.01V and the input resistance rating shall be 10MΩ or more. ±0.01V 10MΩ
4.3.3Load resistance: Load resistance shall include resistance throughout external circuits, and its tolerance shall be ±0.5%.
±0.5%
4.4 Test methods :
4.4.1Dimensions: Dimension shall be measured with instruments specified in Subparagraph 4.3.1 above, provided that either one or both sides of such instruments shall be insulated in measuring the overall height of the batteries.
4.3.1
4.4.2Appearance: Appearance of batteries shall be inspected by visual means.
4.4.3Open-circuit voltage: Test specimen batteries shall be kept for 8 hours or longer at the ambient temperature specified in Table 1, and then the voltage between both terminals shall
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WUHAN FANSO TECHNOLOGY CO.,LTD.
be measured at the same ambient temperature with a voltmeter as specified in Subparagraph 4.3.2.
1 8
4.3.2
4.4.4Closed-circuit voltage: Test specimen batteries shall be kept for 8 hours or longer at the ambient temperature specified in Table 1. and then the voltage between both terminals shall be measured with a voltmeter as specified in Subparagraph 4.3.2 while the specified load is connected between both terminals at the same ambient temperature as specified above; provided that the measured value shall be based on meter reading taken 0.8 seconds after the circuit is closed.
1 84.3.2 , 0.8
4.4.5Service life: Test specimen batteries shall be kept for 8 hours or longer at the ambient temperature specified in Table 2. and shall then be continuously discharged at the same ambient temperature and through the specified load resistance. The discharge shall be continued until the terminal voltage of the test specimens falls below the discharge end-point voltage of 2.0V, and the time during which the terminal voltage has been maintained equal to and above the discharge end-point voltage shall be taken as the service life.
2 82.0V
4.4.6Service life after high-temperature storage: Test specimen batteries, after having been stored at the temperature and period specified in Table 3, shall be kept for 12hours or longer at ordinary temperature (20±2 ) and at ordinary humidity (55±20%RH) and shall then be continuously discharged through the load resistance 7.5kΩ at ambient temperature of 20±2 . The discharge shall be continued until the voltage falls below the discharge end-point voltage of 2.0V, and the time during which the voltage has been maintained equal to and above the discharge end-point voltage shall be taken as the service life.
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(20±2 ) (55±20%RH) 12 20±27.5k 2.0V
4.5 Other tests :
Tests specified below shall be conducted as required. Except as specified in this paragraph. Test methods be in accordance with the provisions of Paragraph 4.4.
4.4
4.5.1Electrolyte leakage test: Test specimen batteries shall be examined for electrolyte leakage while they are kept at ordinary temperature and at ordinary humidity after having been stored at the temperature, humidity and period specified in Table 4.
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4.5.2Self-discharge: Test specimen batteries which have been stored for 12 month at the ambient temperature of 20±2 and at the relative humidity of 55±20% shall be tested for
service life in accordance with the method specified in Subparagraph 4.4.5
20±2 55±20% 124.4.5
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