There is a technical discussion of many of these issues here:
http://www.4qd.co.uk/faq/index.html
In particular, they have a diagram of the proper method (in their opinion)
of charging two 24v batteries from a 12v charger:
http://www.4qd.co.uk/faq/bmnc1.html#chge
Best regards,
Chuck
----- Original Message -----
From: <mblair1@home.net>
To: "Military Vehicles List" <mil-veh@skylee.com>
Sent: Monday, August 14, 2000 7:42 AM
Subject: Re: [MV] 24V to 12V, interesting article.
>
> "Les Newman" <lnewman@tridium.com> wrote:
> > http://www.bitwalla.com/cruisers/tech/24v.html
>
> Overall, that's a good article. The most important point is: DON'T tap
> 12V from the lower battery. That WILL reduce the life of the upper
> battery... how much depends on the load placed on the lower one.
>
> The comments about headlights in that article don't apply to most (if
> not all) US military vehicles, which use 24V headlamps.
>
> There's one glaring mistake in the article: At the very end, it
> suggests jump starting a 12V vehicle from either of the 12V batteries.
> DON'T do that! That will discharge the battery from which you jump the
> 12V vehicle more than the other battery, and will cause the other
> battery to become overcharged. I'm surprised the author recommended
> that after warning against tapping 12V from one battery earlier in the
> article.
>
> --
> Mark J. Blair, KE6MYK <mblair1@home.net>
> PGP 2.6.2 public key available from http://pgp.ai.mit.edu/
> Web page: http://www.qsl.net/ke6myk/
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This archive was generated by hypermail 2b29 : Sat Sep 02 2000 - 09:32:28 PDT