On 29 Dec 2006 18:25:59 -0800, "Chuck Gould"
wrote:

Have you any tips or observations to add to the topic "Troubleshooting
a battery charger"?

Yes. If output voltage at the battery is low, or charging is
incomplete, check for adequate wire size - particularly the ground
wire if charging multiple batteries. The ground wire carries the
entire combined current for all batteries and must be sized
accordingly.