Subject: Back up Batteries/alternators/RAT's
From: Paul
Date: 8/29/1999, 8:44 PM
To: zz

X-Mozilla-Keys:                                                                                 
Tracy Crook wrote:

Probably only a couple of amps. Right Tracy?

 This may be understating the requirement.  You need:
4 - 7 amps for EFI pump
4 - 6 amps for ignition ignitors
5 - 7 amps for injectors

1/4 amp for EFI controller (EC2 type)

13 - 20 amps total depending on exact parts & RPM of engine.

Tracy

Opps! That's going to take a fair size RAT.
How long do you figure one could fly on your average
motorcycle battery?

Paul Lamar

I use a 22 AH motorcycle battery.  That would last a little over 1 hour.  I
test it for capacity at 6 months old & replace it at 1 year.

Tracy

Do you trickel charge it from the main supply Tracy?
If so do you have a skematic you can share?

Paul Lamar
 
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