They work quite well, Michael.

Mrs B’s BMW motorcycle had intermittent charging issues that took a while to track down & I had one of these hard wired in to the switched side of the ignition switch & strapped to a screen mount as a check on how the electrical system was performing. Apart for the Leds being a bit dim for easy visiblity in direct sunlight, it worked fine.

A check with a Fluke meter showed that the Led changeover voltage points were accurate enough for the designed purpose.

Are you sure the price is £1.19 & not £1.99 ?

Nigel B.

Thanks for the clarification Michael. Unusual in this day & age to find that prices have dropped – I am pretty certain I paid £1.99 each for mine several years ago.

Nigel B.

For this job, though slightly dearer are the small digital display volt meters at about £5 even wire in permanently – blue digits are nice ! Or plan B put it on a faglighter plug and plug in when needed ?

To get a good idea of a batterys  state, fully charge then put a discharge tester on and see how the voltage holds up ! 9v or 10v is good. If it drops rapidly it’s time to think about a new one. Noel