Capacity of batteries «Carrefour I-tech» - detailed results

Battery photo

Data:

Brand / ModelCarrefour I-tech
Price1.51 €
Alternative packagings
Expiry12-2019
OriginChina
StoreCarrefour
Starting voltage9.20 V
Average voltage during discharge7.50 V
Measured capacity (main discharge)565 ±1% mAh
Energy4.22 W·h
Date of measurement18 Oct 2015

Notes:

This battery, along with its near-identical twin, were bought within 2 months from one another, from different Carrefour stores. They are closely related: both are stated to expire Dec 2019 and are identical visually. Yet both the price and the performance are significantly different. This one, bought Oct 2015, costs ~€1.50 and clocks 565 mAh. The other one, bought Dec 2015, costs just ~€1 and gives out 515 mAh.

I'm unconvinced that the price has any effect on the performance, though. It's more likely to be a manufacturing variability, or they were exemplars of different production lots.

Test results

Test chart

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