blaughn

Just getting back into RC and am finding the learning curve steeper now than 20 years ago.

I purchased the Futaba 7C 2.4GHz system with theR617FS receiver. I was surprised to find no receiver battery in the kit so baaaaaack to the hobby shop. The manual specifies "4.8 or 6V Ni-Cd battery or regulated output from ESC, etc." It never specifies what "etc" includes except to say "NEVER use dry battery for R617FS as it cause (SIC) malfunction."

The hobby shop set me up with a 6.0V 1600mah battery. While they are very helpful, I have gotten some bad info from them in the past and don't want to put my new Ultra Sport 40+ at risk without confirmation. Is this a good match-up for the Futaba system?

Thanks

MikeL

My Feedback: (3)

That pack should do just fine. A 4-cell pack is 4.8v, and that's what most of my planes have. A 5-cell, 6v pack will make your servos a bit faster and stronger, at a slight weight penalty.

There are a lot of power options out there. NiCad, NiMH, LiPo, A123, LIon, and probably a couple more. Regulators are used to step a higher voltage pack down to 4.8v or 6v. Some folks used dual batteries, some use much more involved power distribution systems. For 40 and 60 size planes there's usually no need for such complexity.

Which shop did you go to? Tom at Hobby Warehouse will never steer you wrong, and neither will his son Jeremy at Big Sky Hobbies. When you go to Hub, there's a mixed bag. Not everyone that works there knows RC, and those that do have varying experience levels.

draftman1

yeap your good.

blaughn

Thanks for the replies. When it comes to the flight pack, I know enough to assume nothing.

Jetdesign

My Feedback: (8)

I prefer 6volts. The extra weight of the battery will even give you more leverage in balancing the plane and possibly reduce the need of having to add weight. With 6volts servos seem to have so much more life to them.

*It's important to note that some servos are recommended to run on 4.8v only. The only one's I've seen so far are some of the high end Futaba digitals in the $85-$120 range, but there may be others. Check your manual.

chopper man

What do they mean by dry battery?

chopper

ImHooked

My Feedback: (1)

The nimh will work as well as the nicd won't it?

rcjetflyer0718-RCU

My Feedback: (1)

A dry battery is a non-rechargable like an energizer or a duracell

alexedit

My Feedback: (2)

the servos in my plane are S3004 and S3003 - is it safe to use 6V 1600Mah?

also, what does the 1600mah stand for?

alexedit

My Feedback: (2)

oh and one of my planes has a kind of flat battery as oppose to my other airplanes that have square/rectangular batteries - is there a difference?