Capacity and self-discharge of batteries «EagleTac 2500» - detailed results

Data: Brand / model EagleTac 2500 Price 9.20 € Alternative packagings — Origin China Store dcpower.eu Date of manufacture N/A Condition (age) Tested item is brand new Unit weight 50 gr. Discharge (1-hour rest) 3.84 V 2520 ±1% mAh (≅9.67 W·h)     Discharge (5-day rest) 3.84 V 2460 ±1% mAh (≅9.43 W·h) ~3% self-discharge     Discharge (1-month rest) 3.83 V 2380 ±1% mAh (≅9.13 W·h) ~5% self-discharge Date of measurement Aug 2013

Notes:

I bought this 18650-sized cell for a bike flashlight. This is the lowest capacity that EagleTac offers in this form factor. The performance matches the advertised capacity perfectly: it's got a bit more than 2500 mAh an hour after a full charge, diminishing to 2380 mAh a month later. The cell weighs 50 grams, which makes it a member of the "good" camp (EagleTac 3400 weighs 54g, which apparently exlplains the higher capacity).

Test results

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

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