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AW Li-ion RCR123A Black Label Old (ICR123A) Battery Analysis

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  Introduction:
AW Li-ion RCR123A Black Label Old (ICR123A) battery is protected rechargeable Lithium ion batteries brought to market by AW in Q1 2007. The cells are fully protected against overcharge, over discharge, over current and short-circuit and are safe to use in single/multi-cell applications.

CAUTION: For safe operation, please handle Lithium ion batteries should with respect. Do not expose to, dispose off the battery in fire. Do not put the battery in a charger or equipment with wrong polarity. Avoid electrically shorting the battery, excessive physical shock or vibration. Do not disassemble or deform the battery. Do not immerse the battery in water. Do not mix and match batteries of different types, make, or model. Most importantly, keep out of the reach of children. Charging and Discharging: Battery must be charged in appropriate charger only. Refrain from using a modified, broken or damaged charger. Storage: Store the battery in a cool, dry and well-ventilated area. Disposal: Regulations may vary from place to place in different countries. Please dispose the battery in accordance with local regulations.

AW Li-ion RCR123A Black Label Old (ICR123A) Battery Features:
  • Button top tab positive terminal
  • Protected cell with anti-explosion Vent / PTC (mechanical thermal protection)
  • Electronic PCB protection featuring PCM
  • PCM: Overcharge Detect Voltage: 4.35V
  • PCM: Overcharge Reset Voltage: 4.15V
  • PCM: Over-discharge Detect Voltage: 2.5V (3.0V under load)
  • PCM: Excess Current Threshold: 2.5A
  • PCM: Excess Current Detect Voltage: 0.2V
In-Depth Review & Pictures:
Size Comparison: Measuring 33.8mm length x 16.8mm diameter AW ICR123A Black Label Old Lithium Ion Battery is slightly smaller when compared against standard size of 34.5mm length x 17.0mm diameter. Here is a picture comparing standard CR123 battery, AW ICR123A and standard AA battery. In the picture, you can barely notice the difference in length.


Pictured below is comparison of diameters between standard AA battery and AW ICR123A Black Label Old Lithium Ion Battery.


Side view of AW ICR123A Black Label Old Lithium Ion Battery the PTC is located at the positive end of battery.


Electronic protection circuitry is located at the negative terminal end of the Lithium Ion Battery.



Battery Analysis & Results:
Testing Equipment: Vencon UBA5 was used for it's extensive capabilities. Vencon UBA5 not only allows charging and discharging of batteries, it also enables unlimited possibilities for creation of analysis routines.

Battery Condition: The batteries used for this test are manufactured in Q1 2007 where as the test are performed in Q4 2008. The number of charge discharge cycles on these batteries is more than 100. Considering the fact that typical lifetime of Lithium ion batteries is about 36 months from the date of manufacture, it is safe to conclude that they are at mid of their lifetime.

Test Condition: The tests performed considering battery capacity of 750.0 mAh as 1C for all three test routines. For each charge cycle, the battery charged at 4.2V with charge current as either 0.5C or 1C. Charge termination current in both the cases is at 0.05C. For each discharge cycle, battery discharged at constant current discharge rates of 0.2C, 0.5C or 1C depending on the routine with discharge termination voltage of 2.75V. The test was performed twice on different battery samples of same batch.

Routine 1 applicable for cycle 1, 2, 3 for both the batteries.

Typical Voltage vs Time curve for AW Li-ion RCR123A Black Label Old (ICR123A) Battery with above routine is as per the below graph


Routine 2 applicable for cycle 4, 5, 6 for both the batteries.

Typical Voltage vs Time curve for AW Li-ion RCR123A Black Label Old (ICR123A) Battery with above routine is as per the below graph


Routine 3 applicable for cycle 7, 8, 9 for both the batteries.

Typical Voltage vs Time curve for AW Li-ion RCR123A Black Label Old (ICR123A) Battery with above routine is as per the below graph


Table below summarizes results for first sample.
AW Li-ion RCR123A Black Label Old (ICR123A) Battery Analysis: Cell 1
Cycle Duration
(h:m:s)
Charge I
(mA)
Charged
(mAh)
Duration
(h:m:s)
Load I
(mA)
Discharged
(mAh)
Chr - Dis Total Time Efficiency
1       3:25:54 153.5 525.6 -525.6 3:25:54  
2 1:29:22 375.0 531.9 3:23:11 153.5 518.8 13.1 4:52:33 97.54
3 1:33:53 375.0 532.7       532.7 1:33:53  
4       1:28:55 369.0 547.0 -547.0 1:28:55  
5 1:33:06 375.0 532.7 1:28:53 369.0 546.8 -14.1 3:01:59 102.65
6 1:36:42 375.0 534.6       534.6 1:36:42  
7       0:33:34 747.3 418.1 -418.1 0:33:34  
8 1:09:11 750.0 496.1 0:37:36 747.3 468.3 27.8 1:46:47 94.40
9 1:08:12 750.0 478.6       478.6 1:08:12  

Table below summarizes results for second sample.
AW Li-ion RCR123A Black Label Old (ICR123A) Battery Analysis: Cell 2
Cycle Duration
(h:m:s)
Charge I
(mA)
Charged
(mAh)
Duration
(h:m:s)
Load I
(mA)
Discharged
(mAh)
Chr - Dis Total Time Efficiency
1       3:43:57 149.4 556.1 -556.1 3:43:57  
2 1:37:38 375.0 538.1 3:44:15 149.4 556.8 -18.7 5:21:53 103.48
3 1:38:12 375.0 545.5       545.5 1:38:12  
4       1:23:14 373.1 517.7 -517.7 1:23:14  
5 1:31:57 375.0 528.5 1:23:19 373.1 518.2 10.3 2:55:16 98.05
6 1:34:14 375.0 527.1       527.1 1:34:14  
7       0:28:57 751.3 362.5 -362.5 0:28:57  
8 1:10:13 750.0 444.1 0:33:33 751.3 420.1 24.0 1:43:46 94.60
9 1:07:51 750.0 426.4       426.4 1:07:51  

Here is the chart with graphical representation of battery capacities.


Based on the above results, it is evident that the cells perform fairly well.
Reviewed: 2008-11-05
Updated: 2008-12-12


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