Thanks for the reply and information. The one listed above is too wide -- won't fit in the Range extender. I was able to find one that will fit on amazon - Click here: Lithium Ion Battery - 3.7v 2000mAh - - Amazon.com. I've purchased and will be testing it when received. You would think DJI would make these available without having to buy a new range extender for $99. Again, many thanks.