why was my question removed about the wires in the picture is connecting red to black?

Not sure why your inquiry was removed but your message is correct. As provided with the product the red wires line up with the red and the black wires line up with the black. As long as you follow the standard methods of connection you should be OK. Looks like the image should be updated to prevent any confusion.

Is it compatible with my car battery? I have a Honda Fit.

Yes it is I use this charger on my vehicles as well as my riding lawn mower battery.

Can this be used on a 12 v 5ah closed lead acid battery.

It has settings for both 12v and 6v

How long for an average car battery? I tried charging for 3 hours and bar on window stayed at 3 bars.

I drive my car very little, so after I do drive it I hook up the charger to keep it charged. I know this doesn't answer your question but if your battery is dead then for sure using this charger is going to take considerably longer than 3 hours, more like 3 days. Good luck

Manufacturer	NDDI
Brand	NDDI
Item Weight	1.19 pounds
Product Dimensions	1.8 x 2.9 x 7.6 inches
Is Discontinued By Manufacturer	No
Manufacturer Part Number	6857D

NDDI Car Battery Charger, 6V-12V 5A Smart Battery Trickle Charger Automotive Battery Charger Maintainer for Car Truck Motorcycle Lawn Mower Marine Lead Acid Batteries

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