Using 3 cell lipo to run RX directly (Nitro plane) - Page 2

Evan03 · Mar 16, 2012, 06:31 PM

My helicopter in the second pic has a 7100 reciever a voltage regulater is built in. My ds610s are running on 8.4 volts the gear channel regulated to 5.2 throttle is also regulated to 5.2

Evan03 · Mar 16, 2012, 06:35 PM

I'm not worried about cells dieing I've probly had 20 2-4 cell lipos and never dropped a cell.

If a cell was to go there would be signs like not balanceing or low voltage. Hmmm spektru telemetry will alarm when voltage drops topreset settings as voltage drops

GeetarJoe · Mar 16, 2012, 08:47 PM

i second (or third?) the vote for the 6.6v LiFePo4 (LiFe) battery packs. they are 6.6v nominal voltage which is right in line with a NiMh 5 cell pack. they also have almost as much current handling capacity as LiPo but without the fire danger. this means i can leave them in the plane and charge them without worrying about dieing in a lipo fire. some of them even have a 30-40C discharge rate. i have one in my 27% Yak thats 2100Mah with a 40C discharge. thats more than enough amps to run 5 Hitec TG Digitals.

Fully charged they are 7.2v, but this drops very quickly when the RX is turned on. they settle at 6.6v and stay there all day. a fully charged 5cell NiMh is usually way more than 6.6v.
best part about them is they dont lose their charge over time like NiMh or NiCads do. I charged one last month and it hung on the wall inside a plane until today. when i put it on the charger to top it off, it only took 10Ma to be fully charged.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
For Sale HPI nitro RS4 evo 3+ ready to run	48chebbie	Cars - Cars and Parts (FS/W)	0	Mar 11, 2012 05:12 PM
Sold ParkZone 2-3 cell lipo balancing charger	HeartBreak	Aircraft - Electric - Batteries & Chargers (FS/W)	2	Mar 09, 2012 08:37 AM
Sold 2X 1300 mah 40C 3 cell sky lipo ($18 shipped for both)	100mph	Aircraft - Electric - Batteries & Chargers (FS/W)	6	Mar 09, 2012 07:48 AM
Sold 3 Blue LiPo 4-Cell 2200mAh 4S1P 14.8v 20C LiPo's	yz426f0	Aircraft - Electric - Batteries & Chargers (FS/W)	7	Mar 05, 2012 10:18 PM
Discussion Question , can you run Nicad/Nimh battery setting using Lipo 3 cell batteries?	DCT1	Castle Creations	1	Mar 05, 2009 10:29 AM

RCG Sites

About RCG

Features

Tools

Media

Topics

Mar 16, 2012, 06:31 PM	#16
Evan03 Registered User Mtn Home, Idaho Joined Feb 2010 436 Posts	My helicopter in the second pic has a 7100 reciever a voltage regulater is built in. My ds610s are running on 8.4 volts the gear channel regulated to 5.2 throttle is also regulated to 5.2

Mar 16, 2012, 06:35 PM	#17
Evan03 Registered User Mtn Home, Idaho Joined Feb 2010 436 Posts	I'm not worried about cells dieing I've probly had 20 2-4 cell lipos and never dropped a cell. If a cell was to go there would be signs like not balanceing or low voltage. Hmmm spektru telemetry will alarm when voltage drops topreset settings as voltage drops

Mar 16, 2012, 08:47 PM	#18
GeetarJoe Who Dat! United States, LA, New Orleans Joined Sep 2011 651 Posts	i second (or third?) the vote for the 6.6v LiFePo4 (LiFe) battery packs. they are 6.6v nominal voltage which is right in line with a NiMh 5 cell pack. they also have almost as much current handling capacity as LiPo but without the fire danger. this means i can leave them in the plane and charge them without worrying about dieing in a lipo fire. some of them even have a 30-40C discharge rate. i have one in my 27% Yak thats 2100Mah with a 40C discharge. thats more than enough amps to run 5 Hitec TG Digitals. Fully charged they are 7.2v, but this drops very quickly when the RX is turned on. they settle at 6.6v and stay there all day. a fully charged 5cell NiMh is usually way more than 6.6v. best part about them is they dont lose their charge over time like NiMh or NiCads do. I charged one last month and it hung on the wall inside a plane until today. when i put it on the charger to top it off, it only took 10Ma to be fully charged.