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Ammeter on bluetooth speaker Answered


I'm building a portable bluetooth speaker and need some help. The speaker is equiped with a TPA3116 amp and is power supplied by a 3s lipo battery. On my construction I would like to attach an analog Weston 301 ammeter in order to check my battery's life. Is it possible? The ammeter can measure 0-15A and the battery is 10A. I made an effort but when I attached it on th battery there was a spark.



2 months ago

Ampere you always measure inseries, Voltage parallel.
If anything then you need to connect the Ampmeter between battery and your device.
For examplefrom the positive of the battery to the meter and then from the other contact of the meter to your device - from there back to the negative of the battery.