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To: techdiver@opal.com
Subject: Re: Ikelite Spd-AA
From: john 015 <CC015012@BR*.br*.ed*>
Date: Tue, 25 Apr 95 10:30:08 EDT

>Posted on 25 Apr 1995 at 08:02:14 by Mike Zimmerman


>Dive Rite Mini NL(12V/7Ah) to the SpDAA (12V/4.5Ah).  Now they usee
>Nicads, so perhaps they discharge differently and thus give more
>than the obvious 4.5/7 ration of burn time (still learning
>about battery characteristics...).

Powering a 50 W lamp from a 12.5 V supply (assuming 10 NiCads) requires
4 Amps of current. The SpDAA battery pack will be empty in about 4.5/4
which is about 1.1 hours or 66 minutes. A 7Ah pack should last 7/4 hours
or 1.75 hours which comes out to 1h 45min.

john 015

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