dignlivn

Gentlemen,


I have a 4.8v 2000 mAh 4 cell nMhi battery
and a 4.8v 700 mAh 4cell niCd battery.

From what I have read here in the Search area, as long as
both batteries have the same number of Cells it is ok to use both
together. But, can I mix different chemical properties ?
(niCd's and nMhi )

I am using 2 switches harnesses also, plugged into seperate
Channels on the Rx.

The plane is a GP 40 Stik and a Futaba 6ch. 2.4 Tx & Rx
with 6 servos. Running a Saito 82a .


Thanks for your input,

Bob

BarracudaHockey

My Feedback: (11)

I wouldn't bother dragging the extra weight around on that plane but yes it will work.
http://www.rcbatteryclinic.com

fancman

My Feedback: (16)

I agree. I wouldn't put two batteries in that plane. Not worth the effort. The 700mah batt is way more than enough alone. Where does the 6th servo go. The plane calls for five?

dignlivn

Thanks for the info, My reason is I need Aft weight
and why not carry redundency.

Thanks again,

Bob

jaka

Hi!
Its a well known fact that light planes fly better. 4,8V , 700mAh is all that is needed.
Why not move the battery and servos reward ...???

dignlivn

Thanks, I took yall's advice and set my plane up with
just the 1 battery. I made it so I can replace the battery
with little effort, after the wing is removed. Still have the
2 Switch harnesses installed but using just one.

Bob

David Bathe

Just use a 5 cell and that's that.

dignlivn

David,

I was under the impression that some Futaba servos and Rx's
don't work on 6 volts ?

Bob

David Bathe

I have an old 8 channel Futaba that I use occasionally, it's at least 10 years old and didn't even give it a second thought, just always use 5 cells.
Ask the question on the Futaba support page.

JohnW

My Feedback: (6)

I believe the only servo's that Futaba has listed at 4.8volt only are high end digitals using nylon gears or special purpose, i.e. gyro. The F3A Futaba digitals I use are 4.8v only. But unless you plane on putting $100 digital F3A/Pattern servos in your 40 stick, don't worry about it. I'm not aware of any Futaba RX that is rated for 4.8V only. Use 5 cells if you want too. Be aware, you will not get as many flights from a 5 cell pack of the same size as a 4 cell pack.

dignlivn

John,

Thats what I had heard (read) too. I have
4 Rx pacs all 4 cell, so i'll stay the course.
No I don't have $100 servos either lol.
Thanks,

Bob