Battery FAQ

• I have an 8 channel receiver but it only has 8 slots. How do I use 8 servos and plug in my receiver battery?
  
  
• Must I plug the receiver battery into the labeled battery slot?
  
  
• What is battery cycling? How important is it? How often do I have to do it?
  
  
• Are your batteries charged or discharged when new?
  
  
• Can I use 6v (5 cell) receiver packs with my Futaba receiver/servos? Will I get increased performance from my equipment? Are there any drawbacks to using 6 volts?
  
  
• I have a brand new Futaba system with NiCD transmitter battery. How long do I charge it the first time? how about after I have used it?
  
  
• I don't understand the red and green battery LED's on my 4YF, how do I know when my batteries are charged and when they are getting low?
  
  
• I want to use two batteries in my plane, how do I hook these up, and is there any problems doing this?
  
  
• Do you make a package ( TX, RX, Servo ) that can be used with dual batteries ( 2 x 7.2volts ) totaling 14.4volts for the motor output?
  
  
• I purchased a new servo that has a warning label on the back that says it can only be used with NiCd batteries. I use only NiMH, will I be okay?
  
  
• If I remove my transmitter battery will I lose all my data? Does my radio have a lithium battery to store all my programming, or how is this data stored? Do I need to service this memory in any way?
  
  
• I am wondering about the amp draw on my receiver. I am using eight S9351's, three S9352's and one S9252's, each in its separate channel. What effect will these have on my receiver and can it handle the load?
  
  

I did not find the answer to my question here. How do I get further assistance?

You can use two batteries hooked to a single receiver with no problem as long as both batteries are the same voltage.

First you will plug one into your battery slot either alone or into a Y-harness with a servo. The second battery can also be "Y-ed" with a servo into any other servo slot that you like.

Both batteries will supply power in unison with each other unless you have a dual battery switch, which stops the second battery from operating until the first pack has reached a certain voltage.

You could do this yourself, you would need to drop the voltage to at least 7.5 volts from the 14.4 volt level. You can do this a number of ways, but the cheapest would be to purchase 12 diodes (1N4001,1N4002, or 1N4003) and put them all in series and then connect them in series in the power lead going to the receiver . This will lower the voltage to a safe level.

The reason for this warning is that the servo can produce high-current draw from your batteries. If you are using NiMH or LiPo batteries, make sure they are capable of delivering sufficient Amps to the servo.

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