PSG90906

## 1 ． [SCOPE] 

**This specification applies to the following 3.0v lithium button cell CR2032 made by** 

## 2. [RATINGS] 

## **TABLE I:** 

|**TABLE I:**|**TABLE I:**||||
|---|---|---|---|---|
|**ITEM**||**UNIT**|**SPECIFICATIONS**|**CONDITIONS**|
|**Nominal voltage**||**V**|**3.0**|**Standard discharge**|
|**Nominal capacity**||**mAh**|**235**|**Standard discharge**|
|**Instantaneous**<br>**short-circuit**<br>**current**||**mA**|≥<br>**300**|**Time**≤**0.5second**|
|**Off-load voltage**||**V**|≥**3.20**|**Unit cell**|
|**Storage temperature**||℃|**0-35**||
|**Standard weight**||**g**|**3.0**|**Unit cell**|
|**Service**<br>**output**|**Initial**|**h**|**200**|**Continuous discharge**<br>**with load 3 k** Ω**,till**<br>**2.0v end-voltage at**<br>**20-25**℃|
||**After**<br>**12**<br>**months**<br>**storage**|**h**|**196**||



|**TABLE II:**|||
|---|---|---|
|**ITEM**|**CONDITIONS**|**CHARACTERISTICS**|
|**Self-discharge**<br>**rate**|**Stored for 12 months at normal**<br>**temperature,**<br>**then**<br>**continuously**<br>**discharged with 15 k**Ω **load till 2.0v**<br>**end-voltage**|**Less than** ≤**2%**|



## **3. [PERFORMANCE AND TEST METHODS]** 

**Unless otherwise stated, all the testing is carried out under the condition: environmental temperature,20** ℃ **-25** ℃ **;environmental humidity,65** ± **20%.** 

## **4. [SUGGESTIONS AND CAUTIONS]** 

## **4.1 Install batteries correctly** 

**4.2 Ensure the contact points to be clean and conductive** 

**4.3 Do not mix different types, different brands batteries to serve together** 

**4.4 Do not heat, recharge the batteries** 

**4.5 Do not dispose of the batteries in fire** 

**4.6 Keep away form the small children, if swallow promptly see doctor** 

**4.7 Pay attention to the producing date** 

## **TABLE III:** 

|**NO**|**ITEM**|**TEST METHODS**|**STANDARED**|**STANDARED**|
|---|---|---|---|---|
|**1**|**Dimensions**|**Using vernier caliper(accuracy**≥**0.02) while**<br>**avoiding short-circuit**|**Diameter**|**20.0(-0.15)mm**|
||||**Height**|**3.20(-0.20)mm**|
|**2**|**Off-load**<br>**voltage**|**Using**<br>**multimeter(accuracy**<br>≥<br>**0.25%)internal resistance**≥**1M**Ω|≥**3.20V**||
|**3**|**Instantaneous**<br>**Short-circuit**<br>**current**|**Time of short-circuit should be less than**<br>**0.5**<br>**Second and avoid repeated test within half**<br>**An hour**|≥**300mA**||
|**4**|**Appearance**|**Eyeballing**|**Bright ,clean, no rust, no**<br>**leakage, And no flaw**||
|**5**|**Capacity**|**Continuously discharge for 8 hour with**<br>**load**<br>**3k**Ω**,temperature at 20-25**℃**,humidity at**<br>**65**<br>± **20% till 2.0v end-voltage(for fresh**<br>**battery**<br>**only: within 3 months)**|≥**200h**||
|**6**|**Vibration test**|**Put battery on the platform of the**<br>**vibrations**<br>**Machine, start the machine and adjust the**<br>**Frequency form 10 times per minute to 15**<br>**Times per minute. keep it running for an**<br>**hour**|**Characteristics**<br>**keep**<br>**stability**||



|**7**|**Leakage at**<br>**high**<br>**temperature**|**Stored under temperature(45** ℃**)for 30**<br>**days**|**Leakage rate**≤**0.5%**|
|---|---|---|---|
|**8**|**Over**<br>**Discharge**<br>**Test**|**After**<br>**2.0v**<br>**end-voltage,**<br>**continuously**<br>**discharged for 5 hours**|**No leakage allowed**|



## **5** ． **[DISCHARGE CHARACTERISTICS]** 

## **With load 3.0 k** Ω **(CR2032)** 

## **Voltage** （ **V** ） 

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     3.40<br>     3.20<br>     3.00<br>     2.80<br>     2.60<br>     2.40<br>     2.20<br>     2.00<br>   0.0    30 60 90    120   150    180  200  220  240  270  300<br>**----- End of picture text -----**<br>


**Time h** （ ） 

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