[Motorola] How to charge my SABER Ni-MH from 13-14 VDC ?

Tue, 9 Jul 2002 00:00:33 -0500

----- Original Message -----
From: "Wn4i" <[email protected]>
To: <[email protected]>
Sent: Sunday, July 07, 2002 3:51 AM
Subject: [Motorola] How to charge my SABER Ni-MH from 13-14 VDC ?

> For an un-expected business trip in a foreign country .  Please ....any
idea
> how much current I can safely re-charge my SABER Ni-MH ( Rapid Charge )
> battery from a 13-14 VDC rented car ?
> Do I need a 8 VDC  regulator .?  or just a droping resistor .....for how
> much current ?......over night  or preferably during the full day
operation
> . ...... may be just 7 -8 droping diodes will do ?
>
>
> I used to have a car battery charger permanently installed in  it .....but
> they stoled the full car from me  a few years ago ....and didn't ship me
> back the battery charger .....
>
> Many THANKS
>
> Yves  Wn4i
>
>
> _______________________________________________
> Motorola mailing list
> [email protected]
> http://mailman.qth.net/mailman/listinfo/motorola
>

150 MA for one hour to charge or roughly 30ma charge for 12-15 hours.
I gave up on the smart charger and used a LM317 adjustable regulator along
with a 50 ohm resistor and wall wart 12v supply. Battery lasts much longer
both during the day and total lifespan if they are slow charged.
A cheap way would be to use a lightbulb charger. 2x #44 bulbs in series fed
at around 12-14v for 10 hours or so.

Brad KA�SQO