View Full Version : what batteries for looong flights
miladyazdi
11-11-2007, 04:46 AM
Ok, so I have the hurry stock setup with the 890 kv motor. I have heard that a 5s lipo will get 15-20 min flights. Is this true and what batteries do you recommend. Is this possible with the stock motor and esc 50A?
Thanks
M
Pinecone
11-11-2007, 05:09 AM
I would say FP EVOLite 4250s.
I am doing battery break in with 3200s and am doing about 5 minutes for 50%. Witht he 4250s that would yeild about a 10 minute hover using about 80% of the capacity.
miladyazdi
11-11-2007, 06:50 AM
thanks, do you know where I can find the above lipos?
M
Readyheli has them on sale @readyheli.com (clearance/sale)
a great place to do business!
wis1
Pinecone
11-11-2007, 11:54 AM
Readyheli has them on sale @readyheli.com (clearance/sale)
a great place to do business!
wis1
+1 ReadyHeli ROCKS.
miladyazdi
11-11-2007, 03:14 PM
do you mean this one:
FlightPower LiPo 11.1V 4250mAh * EVOLITE * 3S Battery Pack (http://www.readyheli.com/FlightPower_LiPo_11_1V_4250mAh_EVOLITE_3S_Batt_p/fpwp0131.htm)
Its only 3s I thought it should be 5s??
M
Pinecone
11-11-2007, 04:29 PM
You buy 2 at a time and run them in series as 6S. You can charge them as 2 3S packs or as one 6S pack.
Also higher voltage means lower amp draw for the same setup. And duration is based on amp draw.
mingct
11-12-2007, 06:35 AM
6s 3700mah
z30 1110
42/14 80%
7min
put back 3200mah
Pinecone
11-12-2007, 03:37 PM
That is a little much, 80% is just under 3000 mAH.
Phoinix
11-13-2007, 05:15 AM
I fly Flight power LITE 5S 5350mAh, and it gives me 13 minutes of flight at 80% capacity, 500mm blades spining at 1700rpm.
miladyazdi
11-13-2007, 08:56 AM
hi phoinix,
That sounds like what I was looking for. I have the bone stock kit, do I need to change anything before going with this lipo or just buy, charge and fly?
miladyazdi
11-13-2007, 09:02 AM
also where do you buy the lite 5s?
Phoinix
11-13-2007, 09:36 AM
I had no problems buying these LITE 5S lipos in Slovenia. You have problems finding some?
I changed the position of the battery so it is keept in a aluminum bracket, for safety only. I guess you could strap it on to existing battery bracket with no problems.
devious17
11-14-2007, 11:50 PM
I am using 6s2p from 2 units of 3s1p 2170, works great..
Pinecone
11-15-2007, 01:21 PM
6S2P from 3S1P requires 4 packs, not 2.