NiMH battery to LiPo

Scratchgoose · Mar 03, 2012, 02:46 PM

I fly my Fire-bird Commander often... 4.8V 600mAh battery.
Can I convert the plane to Li-Po batteries (3.7V)

Any suggestions

everydayflyer · 08:00 AM

4.8V Ni means 4 cells which charge to aprox. 6.4 and maintaint 5volts or more during early flight and then drop as flight time passes.

A 1S LiPoly charges to 4.2 and is aprox. 4V under a light load , 3.7 under a moderate load and 3.0 to 3.5 under a heavy load depending on the capacity , C rate and the load.

Most lukely you would need a 2S (2 cells) 7.4V Lipoy and also a LiPoly charger, a LiPoly frienly ESC and practice very good throttle management if you are using a brushed motor to keep from burning it out.

Best advice would be to purchase a Brushess motor and ESC as well as the 2S LiPoly.

Please spend some time learning about LiPOlys before purchasing them.

Charles

Scratchgoose · Mar 03, 2012, 09:43 PM

Thanks for the reply, I will stay with the default..... it just a back-up I keep in my MotoHome..

Mar 03, 2012, 02:46 PM	#1
Scratchgoose Broken Prop. United States, NV, Cold Springs Joined Feb 2012 37 Posts	NiMH battery to LiPo I fly my Fire-bird Commander often... 4.8V 600mAh battery. Can I convert the plane to Li-Po batteries (3.7V) Any suggestions

Mar 03, 2012, 03:38 PM	#2
everydayflyer Southern Pride Haralson County GA. USA Joined Oct 2004 34,188 Posts	4.8V Ni means 4 cells which charge to aprox. 6.4 and maintaint 5volts or more during early flight and then drop as flight time passes. A 1S LiPoly charges to 4.2 and is aprox. 4V under a light load , 3.7 under a moderate load and 3.0 to 3.5 under a heavy load depending on the capacity , C rate and the load. Most lukely you would need a 2S (2 cells) 7.4V Lipoy and also a LiPoly charger, a LiPoly frienly ESC and practice very good throttle management if you are using a brushed motor to keep from burning it out. Best advice would be to purchase a Brushess motor and ESC as well as the 2S LiPoly. Please spend some time learning about LiPOlys before purchasing them. Charles
	Last edited by everydayflyer; Mar 04, 2012 at 08:00 AM.

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Mar 03, 2012, 09:43 PM	#3
Scratchgoose Broken Prop. United States, NV, Cold Springs Joined Feb 2012 37 Posts	Thanks for the reply, I will stay with the default..... it just a back-up I keep in my MotoHome..