Aldi battery charger.

[Dorset Bob]

Originally Posted by mss

They only need to be tested every 3 - 12 months if in constant use. This is the same with most electronic measurement equipment. Mine are used a couple times in a year and the certificate is about 15 months old.

In any case, the cheap ones such as the one in the boot of my car (which is sold under many different names) have been tested when new and the readings are shall we say inconsistent across samples. But for a wheel nut it serves the purpose.

As good as they are, but I personally wouldn't use an Aldi battery charger on a wheel nut.