Capacity and self-discharge of batteries «Tronic EnergyEco 2300» - detailed results

Battery photo


Brand / modelTronic EnergyEco 2300
Price3.57 €
Unit price0.89 €
Alternative packagings
Date of manufacture07-2013
Condition (age)Tested items are brand new
Low self-discharge (LSD)Yes
Discharge (1-hour rest)5.02 V
2100 ±1% mAh (≅2.63 W·h)
Discharge (5-day rest)5.00 V
1980 ±1% mAh (≅2.49 W·h)
~5% self-discharge
Discharge (1-month rest)4.97 V
1840 ±1% mAh (≅2.28 W·h)
~12% self-discharge
Date of measurementNov 2013


I bought these for myself knowing the good results the previously tested had. There are a few differences now: the price is half an euro less, the packaging has them at 2300 instead of 2100 mAh, and the results are noticeably better, clocking around 350 mAh more on average. A year later I tested yet another pack, which, this time, was virtually identical visually and electrically.

Some details: the cells were around 4 month old when I tested them. The factory charge was reading at 5.08V, with a good balance between the cells, and held ~1680 mAh. This was followed by a normal forming, in which the cells showed a fair balance, around 70 mAh difference (we've seen better). Later the cells had two discharges at 1-hour wait (2120, 2100 mAh) as well as one 5-day (1980). A month later, the cells' voltage was 5.21 (dropping to 5.20 after heating) and held just a bit more than 1840 mAh, which means 12% self-discharge per month, which surprisingly high for a LSD-labelled AAs.

Test results

Test chart

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