I got this from a large UK supermarket chain called Sainsburys but hadn't got round to doing a test on it yet. Quite well constructed with LG cells, an unusual control PCB with a few tricky to trace components and a thermistor for battery temperature monitoring. Notable features are the decent control chip they seem to have used and the matching beefy inductor.
External cell capacity test is a respectable 6400mAh. (3200mAh per cell)
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