Mugen released a 3600mAh extended battery for Moto Droid 3.
Check it out here: 3600mah for Droid 3
I had the battery on pre-order from Mugen, it shipped on the 1st of November, got it yesterday, 10th. Battery life on the original battery was horrible, but I do hope this extended battery will increase my usage time between charges, the case fits pretty well and it increases the bulk of the already bulky phone a lot. But it makes it much easier to handle and type on the keyboard, the bulge actually provides good hand support. If you are not happy with the battery life and don't mind a bulkier phone, you should definitely get one. Well worth the price.
Well i figured id follow up on this ive had it for a week and Skolar is right it makes the phone bulky but it does improve battery life alot. With my stock battery i could listen to my sirius/xm app for 6hrs straight at work which would bring me down to 10-15% by the time i left. With this new battery it goes down to 60% after 6hrs so im really happy with the performance and the trade off of the bulk with how long it lasts now.