Battery Help....
11-05-2008, 09:52 PM
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Battery Help....
I need a little help on Li Po's
I'm building an A-10 15-18lbs Flying weight including batteries, I will be using 2 hoaye 4.5" fans with 2 KB45-17XL capable of handling 36v and using 2 Hobby Wing 100a HV ESC. I Plan on using 8s to each motor 16s total. My question is this I have come accross some LiPo's with different discharge rates and capacity. I need help on what do you guys think would be the best way to go with my setup. Here are my choices:
14.8v 3300mah 25c
14.8v 3700mah 22c
14.8v 2200mah 25c
2 of these batt. to each motor would give me some serious mah & volts but would it be safe to do the higher mah setup, which is only a $10 more than the 3300 mah setup for a set of 4 or should I play it safe and stick with the 3300 or 2200mah batteries. I'm leaning toward the 3700mah to get good flight times without coming even close to low discharging. Any and all help will be greatly appreciated.
I'm building an A-10 15-18lbs Flying weight including batteries, I will be using 2 hoaye 4.5" fans with 2 KB45-17XL capable of handling 36v and using 2 Hobby Wing 100a HV ESC. I Plan on using 8s to each motor 16s total. My question is this I have come accross some LiPo's with different discharge rates and capacity. I need help on what do you guys think would be the best way to go with my setup. Here are my choices:
14.8v 3300mah 25c
14.8v 3700mah 22c
14.8v 2200mah 25c
2 of these batt. to each motor would give me some serious mah & volts but would it be safe to do the higher mah setup, which is only a $10 more than the 3300 mah setup for a set of 4 or should I play it safe and stick with the 3300 or 2200mah batteries. I'm leaning toward the 3700mah to get good flight times without coming even close to low discharging. Any and all help will be greatly appreciated.
11-06-2008, 03:05 AM
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RE: Battery Help....
Depends how many amps your system is going to pull.
The max amps between the two top systems is almost identical. However anything more than 65 amps is going to kill your batteries in short order. I suspect they are going to be too small.
What make of battery are they?
The max amps between the two top systems is almost identical. However anything more than 65 amps is going to kill your batteries in short order. I suspect they are going to be too small.
What make of battery are they?
11-06-2008, 01:41 PM
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RE: Battery Help....
The setup will draw approximately 70A at full bore. I would recommend purchasing cells that can withstand 100A continuous to have a greater safety margin if your plane and budget would allow.
Running at nearly 2000 watts, I'd recommend keeping motor cooling in mind. Drill holes in the end caps if you can. These KB motors are amp hogs and run HOT.
Ryan
Running at nearly 2000 watts, I'd recommend keeping motor cooling in mind. Drill holes in the end caps if you can. These KB motors are amp hogs and run HOT.
Ryan
