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--- opinion:frater_secessus:troubleshooting [2024/12/10 17:16]
frater_secessus [where does it start?]
+++ opinion:frater_secessus:troubleshooting [2024/12/10 17:24] (current)
frater_secessus [narrowing it down]
@@ Line 136: / Line 136: @@
 === measuring current ===
+Sometimes voltage doesn't tell us what we need to know.  Finding a parasitic load is often done by watching current going out of the battery and pulling fuses one at a time or otherwise breaking the subcircuits.  When the offending circuit is taken offline the current will drop by that amount.
+Current measurements are also important for understanding how your system is functioning:  how much charge you're getting, etc.
+If you have [[electrical:12v:battery_monitor|a battery monitor]] installed you can watch the net charge/discharge that way.   Or you can use a clamp meter (see below).  Or for small currents you can break the circuit and use the meter inline reveal the current.    The clamp meter is the fastest, easiest way to measure current on a particular wire.
 === measuring continuity ===
+Meters can measure continuity.  This might be useful for testing a fuse in the hand;  it might look good but actually be popped.
+=== measuring resistance ===
+Meters can also measure resistance but that is beyond the scope of this simple guide.

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