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Anonymous
Battery Charger RF Interference
2016-02-03 22:46:55 Post No. 940920
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Battery Charger RF Interference
Anonymous
2016-02-03 22:46:55
Post No. 940920
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When I plug my Milwaukee battery charger in at work, my boss' Makita radio goes to static. I've never had this problem when using a Milwaukee radio, and the Makita radio works fine with the Makita charger. So it looks like the switched mode power supply in the charger is causing rf noise that neither the radio or charger has adequate filtering to remove. I tried just moving the two away from each other, but there was no improvement in the sound, so it looks like the rf harmonics are traveling through the wires instead of just through the air. The two work fine when they're plugged into outlets on different circuits, but this isn't always possible. I was thinking that adding an rf choke into the power supply of the drill charger might fix this problem, or putting a large cap across the hot and neutral wires. I'm an electrician so I know how to safely work with electricity, but I don't know if this is going to work or if I'm gonna screw up my charger. Much thanks for any help.