Voltage?

[Butch (cb)]

This is a non A7/A10 question but if you could bear with me at least. The bike is running a 6V dynamo and a solid state voltage regulator. But how do I know if my voltage regulator is working right/at all? The battery shows a certain voltage at rest, and clearly more when the engine is running … and as the revs rise. And then less with the lights on. If the voltage regulator were working, then I guess as the battery becomes ‘full’ it should back off. How can I test for that? I’m asking as the previous battery seems to have boiled dry.

Thanks

[a10 gf]

Take a look at 2 things: Volts and Amperes, you'll need 2 multimeters for simultaneous check. Or do V 1st, then do A. Check both with different loads (lights on\off), & with full battery (should show low A), & with drained battery (should show high A, decreasing as battery charges).

- Volts, connected across battery poles of course.
- Amperes, connected in series to a battery pole (disconnect a battery wire and let connection pass trough the meter). Set the meter to measure at least 10 (or 20) A. Clamp meter is great > http://www.a7a10.net/forum/index.php?topic=2526.msg16573#msg16573

Tell us what the numbers are, someone may decypher the findings.

Be sure to correctly reset multimeter between different measurements 

and clearly more when the engine is running

How much? Up to 7,5v should'nt do any damage.