quick question

The SC3 is the correct spares carrier for the E series but they are not yet in production & they only hold 3 batteries. You can use an SC2 if you put a piece of tape across the opening inside the lid of the SC2 so that the MN01/02/03 will not move. That's what I do and it works fine.
 
I've been using an SC1, actually. SF recommended it as the best fit for the MN bulbs. A small piece of foam (like the foam plug that comes with the replacement bulbs) on top of the bulb makes it fit perfectly, bulb down. In fact, I've found that the SC1 fits the MN bulbs better than the tight fit with the P-series bulbs that it was supposedly designed for!
 
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