Ammeter

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AndyR
Posts: 41
Joined: Sun Jul 23, 2023 2:32 pm
Location: Worcestershire

Ammeter

Post by AndyR » Wed Jan 21, 2026 3:25 pm

Still working through my list of tweeks and repairs and next on the list is the Ammeter.
Very easy to diagnose why it isn't working - it is not connected to anything!!!!
Can anyone guide me as to what I wire to where please?
Thanks all.
Andy

peakrock
Posts: 244
Joined: Thu Sep 27, 2018 5:52 pm
Location: Wreningham

Re: Ammeter

Post by peakrock » Thu Jan 22, 2026 9:17 am

The ammeter measures the amount of current going into or out of the battery so it needs to be wired in series with the main feed from the battery to the electrical system (though not the feed from the starter solenoid to the starter motor). You will need to investigate your particular wiring setup to determine where the main electrical feed goes from, it may be from the unswitched side of the starter solenoid that has the thick cable from the battery.

If I were you I would swap the ammeter for a voltmeter. It's much easier to wire in and gives you a good idea of battery health and the charging system. For instance, you'll see the voltage fall when the headlights are on and rise when the battery is charging.

Dave

Richard and Pat
Posts: 883
Joined: Wed Sep 26, 2018 3:44 pm
Location: Biggleswade

Re: Ammeter

Post by Richard and Pat » Thu Jan 22, 2026 3:54 pm

Any good?
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Richard and Pat
Posts: 883
Joined: Wed Sep 26, 2018 3:44 pm
Location: Biggleswade

Re: Ammeter

Post by Richard and Pat » Thu Jan 22, 2026 7:38 pm

The ETB site is useful for information. https://www.etbinstruments.com/
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