Metz 45-39 AA Battery Holder for 45 Series

The Metz 45-39 Battery Holder should be exclusively used with "AA" alkaline batteries-it does not work well with NiCad, NiMh or other battery types.  Depending upon many factors, the recycling time varies from 0.3-13.0 seconds and the number of flashes varies from 100-2000.