All the 5000mah batteries in my price/size range are on back order. I only have one set of batteries and the season is starting. I fly Sportsman and like to practice.

Hello Joe,

I think that you may have placed the poll on the wrong forum. I suspect you wanted the electric pattern forum. I have been practicing the Sportman routine as well on 3700 mah packs and they seem to work well for 7 minute flights plus reserve. For me, 7 minutes of flying and having to think about what I am doing is just about right. I believe my peak current draw is in the 45-50 amp range which averages out to the low 20's for the whole flight.

Good luck,

Teo

Hi Joe,

Depends really . . you have a Wind 110, right ?? Is it 8S or 10S??

A friend of mine flew the Wind 110 in F3A with Rhino 3700mAh and it was fine. He started with 8S but wasn't that happy with it. He upgraded it to 9S (yes 9S ! ) and finished with 10S . . all 3700mAh Rhino packs. He then went to 10S 4900's, but only because he had them and liked the way the Wind 110 flew with the extra weight.

If you are using 10S, 3700mAh Rhinos should be fine . . If you are using 8S, the 'cheap' 4000mAh packs may be border line. Of course you can drop the current draw, but you probably wouldn't be happy with the performance then . .

JB

I'd wait for the five amp batteries. I know a guy that used 3700 mAh 10 packs in his Integral. All was well until he flew at a competition that was really hot and windy (30+ mph winds). It turned out that day that 3700 wasn't quite enough for his routine. He puffed the pack.

You will have a 4000mAh pack, but you should only use about 3200mAh or so to retain battery longevity. With the 5A pack, you'll have 4A to use without breaking 80%.

Your just flying sportsman, 4000 can do it.

Matt

Yes . . if Joe is flying a 2M, but I believe it is a Wind 110. The Integral is 1kg (2.2lbs) heavier and has more drag than the Wind 110 (Wind 110 has MUCH thinner wings). That makes a big difference.

Also . . same friend tested his 10S 3700mAh and 4900mAh Rhinos in his new 2M Wind S Pro / Plettenberg / Schulze ESC in windy conditions flying F3A P11. He was surprised. Commenting that the lighter total weight using 3700's (lighter pack weight) drew less Amps, although the Wind S Pro is less 'draggy' than the Integral . . that's for sure.

JB

I am flying the Wind 110. Weight with the current 5000mah, 30C batteries is 9.25lbs.

I would prefer to get 9-10min flights which is what I was getting with the 1.10/1.20 engines on 14oz.

Maybe it will be OK to get a few sets of each. I would prefer the 5000mah, but I really would like to have a few sets to get started. I can save the 5000/30C batteries for windy days for more energy, more ballast, and a more forward CG. Unfortunately the 20C, 25C, and 30C batteries are all sold out and I've been on back order for over a month.

There are 15C batteries but that concerns me a little.

You'll be fine, good luck.