Anyone know of a good charger that will work with both my OMD and EPM2 batteries? Really don't want to take both chargers on trips if there's and alternative.

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Current m4/3 gear:
OMD w/HLD6, EPM2, 12-50, 14 2.5, 25 1.4, 45 1.8, 45-175x, 7.5 fish

The downside though is you'd only be able to charge one of the batteries at a time.

There are plenty on ebay. They are many under $5. I paid $1.50 for mine. I only use these types of generic chargers. That way I can only carry around one charger when travelling with 3 cameras.