16-09-2017, 09:49 PM
(This post was last modified: 16-09-2017, 10:02 PM by Bob Culver.)
The battery voltage does seem somewhat modest, esp if immediately after chrging, but analogue meters are notoriously inaccurate. Meter tolerance is percentage of full scale and even for new very expensive AVO was quite considerable especially for part scale readings. Can be checked against a good digital.
Voltage drops across switches, lengths of wiring, across earth leads direct to battery etc, etc are often instructive. Some drop unavoidable at the higher currents. Do the switches improve with repeat operation to improve contact? Switches intended for only 8 amps originally.
On charge voltage is not regulated on a Seven. Will be quite high on Winter with a full charged battery. With lamps on the charge voltage is modest, and reduces as the battery flattens!
The cutout simply connects and disconnects the battery to the dynamo.
With your investiagtion so far a read up of Ohms Law will likely prove interesting!
There was a recent post about problems with LED tail/stop lights which may be applicable to your case. Unfortunately the solution, as with most modern elcctronics, involves an understanding far beyong Ohms Law!.
Voltage drops across switches, lengths of wiring, across earth leads direct to battery etc, etc are often instructive. Some drop unavoidable at the higher currents. Do the switches improve with repeat operation to improve contact? Switches intended for only 8 amps originally.
On charge voltage is not regulated on a Seven. Will be quite high on Winter with a full charged battery. With lamps on the charge voltage is modest, and reduces as the battery flattens!
The cutout simply connects and disconnects the battery to the dynamo.
With your investiagtion so far a read up of Ohms Law will likely prove interesting!
There was a recent post about problems with LED tail/stop lights which may be applicable to your case. Unfortunately the solution, as with most modern elcctronics, involves an understanding far beyong Ohms Law!.