Motorola Bag Phone Batteries

Howdy:

I have some Motorola bag phone batteries, that I would like to recharge
thru my vehicle's cigar lighter, while on the road. The batteries I have
are SNN 4298 A -1 (sealed lead acid).

Making an adapter with a voltmeter (and ohmmeter if necessary) and
enclosing same in a covered battery box, is no problem.

What I need to know, is the charging times for the batteries, when
they're at various states-of-charge (or discharge, if you will).

IOW: X-number of hours for a battery discharged down to 11V; X-number of
hours for a battery discharged to 11.5 V, etc, when hooked up to the
vehicle's 12V 60A alternator.

I would really appreciate any comments and advice from readers who have
charged the same, or similar batteries, in this manner.

Thanks,
TD

teamdebus@webtv.net wrote in news:17264-42D2CBBE-18@storefull-
3153.bay.webtv.net:

> I have some Motorola bag phone batteries, that I would like to recharge
> thru my vehicle's cigar lighter, while on the road. The batteries I have
> are SNN 4298 A -1 (sealed lead acid).
>

It's a 12V gelcell. Put a taillight bulb in series with the + wire between
the battery and the + terminal of the cigarette lighter to limit the
charging current when the battery is down. It will glow showing you the
charge current. If it charges too slow for you, switch to a 6V bulb. DO
NOT LET THE BULB SOCKET COME IN CONTACT WITH THE CAR METAL BECAUSE IT'S NOT
GROUND! Insulate it with tape.

Works great....costs nearly zero...Radio Shack has bulbs and sockets.

--
Larry

This jerk called my cellphone and was nasty.
Continental Warranty -- MCG Enterprises -- Mepco-
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On Mon, Jul 11, 2005, 8:11pm (MDT+2) From: noone@home.com (Larry) wrote:

>It's a 12V gelcell. Put a taillight bulb in
>series with the + wire between the battery
>and the + terminal of the cigarette lighter
>to limit the charging current when the
>battery is down. It will glow showing you
>the charge current. If it charges too slow
>for you, switch to a 6V bulb. DO NOT LET
>THE BULB SOCKET COME IN
>CONTACT WITH THE CAR METAL
>BECAUSE IT'S NOT GROUND! Insulate
>it with tape.
>Works great....costs nearly zero...Radio
>Shack has bulbs and sockets.
>--
>Larry

Hey, that's the old "ballast resistor" trick. Now, why didn't I think of
that? Larry, you da man! Much thanks.

TD