landyacht318 wrote:
When Amps stop tapering at absorption voltage, and start rising, call em done, is another method.
Or are you afraid of wearing out the spring on your DC Clampmeter's clamp?
Im confused by amps tapering, and then rising. I dont think im following exactly what you mean.
The charger itself is listing the amount of amps. (although i have used a clamp meter to check what the charger says and then how many amps are actually going through the wire next to where it attaches to the battery.....i had to make bigger cables because of excessive drop)
I set the charger to 10% of C20. On my old batteries it hits 2.45v in like 10-30 seconds. The amps taper down and maintain the 2.45v. Problem was that at 4 hours of absorption the charge current was still higher than 3%. Looks like the answer to my question is to leave it hooked up. Even if it takes 14 hours. (the newer batteries hit 2.45v in about 2 mins....which makes sense because the c-rating of my old batteries must be toast)
Note these are batteries that i fully charged 6 months ago. They have been sitting unhooked in the garage.
