Beware of BVM digital 1-8S LCD battery voltage meter & Buzzer

[Kiriakos GR]

Warning :  BVM digital 1-8S LCD battery voltage meter Tester Buzzer

An Professional electronics engineer decided to use this multi-input volt meter is his solar energy application and he discovered that the measurements become totally unstable when the batteries are is in use by the load.
He emailed to me the message below.

The BVM-8S will not be useful for almost anything you can only check the battery with no load if the electric motor from the bicycle is working you will get a low cell warning even if the battery is fully charged because of the current noise that makes the individual cell voltage readings unusable.   

Translation:  Regular electronic interference caused by the load is something which this meter is unable to handle, and in conclusion any measurements of this thing are NOT acceptable.