BG333721423 Arrived after 3 weeks to Ireland Packaging was terrible, really bad, item in a antistatic bag in another plastic bag, no bubble wrap or protection whatsoever, such carelessness for such a fragile item, hence the big power resistor was only hanging on at one end. I resoldered the load resistor and moved the battery being tested holder 10mm away from this hot load resistor. After the repair, I tested the device and it did work fine. Please note: This device places a fixed load of 500mA on your battery under test, this is NOT adjustable, this is quite low for a 18650 battery, results while accurate for a 500mA draw, will not hold aH true for a higher load on the same battery, a real test drawing a higher current may surprise you, as it did me (eg. battery 2.12aH @ 0.5amp load, 1.25aH@ 1amp load)