Discharge Test ( TENERGY AAA )

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old4570
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Discharge Test ( TENERGY AAA )

I was in the market for some AAA rechargeable batteries , must be like a decade since I purchased some so it was time . One of the packs I purchased was these Tenergy AAA rated at an astounding 1000mAh . Now I would have been pleasantly surprised if they had been able to achieve that . Now an interesting thing occurred with these Tenergy AAA batteries – They would not terminate charging . The first time when I was topping off the batteries for the first discharge the charger pumped in some 1400mAh . I thought this a little high . The second time I was busy and by the time I checked the charger some 1800mAh had gone into the Tenergy AAA batteries . ( Charge rates was 0.3A ) . The third time , by the time I checked some 2400mAh had gone into the batteries ( obviously converted into heat ) , and still only 96% charged according to the charger . The fourth time some 2800mAh went in and the charger was reporting 98% charged . Only the 5th time did the charger terminate charging at 1200mAh into the batteries . With this much energy consumed by the batteries for a charge I can say that the transfer of energy is very inefficient . Actual discharge results : Discharged at 0.5A 1st Discharge ..

470mAh , 518mAh , 563mAh , 563mAh

2nd discharge ..

629 , 633 , 567, 589

3rd discharge ..

676 , 723 , 677 , 729 ,

4th discharge ..

725 , 721 , 676 , 683 ,

5th discharge ..

662 , 713 , 703 , 650

So with a claimed capacity of 1000mAh , we are seeing a 65% to 70% return on the capacity claim at a discharge rate of 0.5A

 Always remember , the easiest thing in the world to do , is to expel hot air from your lungs and through some vocal chords ..
The resulting sound may , or may not be worth listening too ….

 

Edited by: old4570 on 10/24/2017 - 02:00
raccoon city
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GENUINE Capacity!