AVR-Chat

>Ouch.

>Can the battery actually deliver 400A for 5 minutes?
>A large deep cycle should be about 4500 Amp/min, but the puckert
>effect says SIGNIFICANTLY less under that fast a drain

It should be able to.  The Optima battery that I will be using is a starting
type of battery, not a deep cycle, with a CCA (cold cranking amps) of 1100 A
(model D31T).  It is one that is specifically recommended by commercial
installers of my make/model of thruster.  Optima "spiral-wound" AGM
(absorbed glass matt) batteries are pretty amazing batteries.  They hold
their charge for months on end without having to be float charged.   (But
they are easily destroyed by over-charging or over-voltage.)

In practice, operation of a thruster is usually bursts of power lasting
10-30 seconds.    Periods of minutes are very unusual.but can occur.

Steve

 

 

 

 



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