What lipos and charger to use for.........  
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All Forums >> Radios, Batteries, Clubhouse and more >> Batteries & Chargers >> Common Sense RC Support >> What lipos and charger to use for.........
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What lipos and charger to use for......... - 5/10/2006 5:53:15 PM   
Joe 1320


 

Posts: 30
Joined: 4/10/2006
From: Sebring, FL, USA
Status: offline 		Twin ducted fan 380 brushless motors, 30A escs, in a Walkera EPP medium weight plane........What kind of power consumption can I expect from these?:

The motor specs:
Working voltage: 6-18
Speed Constant: 3100 KV rpm/v
Hollow Holding Current (10v): <2
Impedance: 30 ohm
Weight: 30 grams

Esc specs:
sustained voltage: 6-17V
BEC current: 3.0 A
Continuous output current: 30A
Instant Max current: 50A
Inside Impedance: 0.0044 ohm
weight: 32.4 grams

I want to be able to push WOT for at least 10 seconds without getting into a battery voltage drop problem. Do I go with one monster battery or twin 15c 2100 mah? Since I'm building two different planes that will have the same powerplants, I want a killer battery and charger system that will work for both planes. A 7-8 minute flight time would be acceptable, I just don't want to get caught with not enough battery. I also don't want a battery so large and heavy that the increased weight offsets the available thrust. I am completely new to lipos, but I know the supplied 1500 mah battery in the kit is nowhere near enough for these birds. Overkill is usually the route I go, but I am really concerned with weight. Any insight would be greatly appreciated, I am new to lipos.
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All Forums >> Radios, Batteries, Clubhouse and more >> Batteries & Chargers >> Common Sense RC Support >> What lipos and charger to use for.........
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