OI Photography said:
ElGuano said:
Doing so saves anywhere from 40-80g from just running in parallel.
Due to not needing an external mounting option, or...?
There's a lot to it:
1. You lose packaging/tape/metal plate/connector/copper wire weight when you solder two batteries into one - a single Phantom battery weighs ~173g. 2x that is 346. My 4400s all weigh about 321-324g, and they could be less if you want to cut some corners.
2. Widening the battery door and bottom chassis to fit the batteries removes a few grams as well (but you can argue academically about structural integrity).
3. External mounting with plastic or CF plates, velcro, screws, etc. add 50g or more. Plus, many mount the batteries directly in the downdraft of the props, further impeding efficiency. You'll also need a parallel XT60 harness, which is pretty heavy (lots of copper).
Put all of it together and the weight savings for going dual this way is MASSIVE. It's up to 100g less the entire way. That's more than half a battery of weight. Soldering/in-shell, it's even less than the weight of the second battery to go dual.
If DJI's numbers are all accurate, with the P2V you get 800mah more for 20g extra. That's impressive.