Battery Question

[Ron Lockhart]

Ive been using a similar set up on pattern
bird for a few years.  Two 700mah 5 cell nicads,
each thru a separate switch, into separate plugs
into into one receiver.  Airtronics Stylus PCM.
No regulators.  Works fine.  
PROs IMHO:   Redundancy in battery pack, switch,
plugs, and wiring to the receiver.  Zero added
single point failure modes. Very low cost & weight.
CONS IMHO:  You have to charge, check and
turn on/off each pack separately.

Ron Lockhart

----- Original Message -----
From: BUDDYonRC at aol.com
Date: Monday, January 13, 2003 10:05 am
Subject: Battery Question

> Pros and Cons regarding dual battery use.
> I am presently installing two parallel power systems in an 
> airplane that is 
> using six Futaba Digital servos, four S9252's and two S9151 as 
> well as one 
> S9202 on throttle.
> Because of the load requirements I have installed two 1700mah 
> NiCad 4 cell 
> packs complete with separate HD switches and wiring both plugged 
> into the 
> R149DP receiver.
> Local club members say they are running this way with no problems. 
> The system 
> also includes an installed i4C on board volt meter to monitor 
> system voltage. 
> each battery can be checked separately by turning on one at a time 
> and 
> reading the voltage under load, voltage can also be checked with 
> both systems 
> on. Futaba states that these servo's are to be operated on 4.8 
> volts only and 
> since I have never had a problem with four cell pack's that is 
> what I have 
> decided to use. 
> Any comments or experience utilizing this type of hook up will be 
> appreciated.Buddy Brammer   
> 

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