Capacity and self-discharge of batteries «Eneloop (2nd gen)» - detailed results

Battery photo


Brand / modelEneloop (2nd gen)
Price15.33 €
Unit price3.83 €
Alternative packagings
Date of manufacture04-2011
Condition (age)Tested items are used
Low self-discharge (LSD)Yes
Discharge (1-hour rest)5.09 V
1780 ±1% mAh (≅2.27 W·h)
Discharge (5-day rest)5.07 V
1760 ±1% mAh (≅2.23 W·h)
~2% self-discharge
Discharge (1-month rest)5.04 V
1660 ±1% mAh (≅2.10 W·h)
~7% self-discharge
Date of measurementAug 2012


These are the second generation of eneloop-branded cells from Sanyo (model id: HR-3UTGA). According to Sanyo, they should endure more cycles and have lower self-discharge. My tests indicate, that the self-discharge is actually worse. Capacity is very comparable to the first generation. The tested cells aren't new, they've been used in a wireless keyboard, and were purchased circa 2010.

Test results

Test chart

Capacity test immediately after unpackaging (i.e., the factory charge):
Unpacking test

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