Not a TriMetric, but for $20 might be worth trying out...
Bayite DC 6.5V-100V Digital ammeter voltmeter Amazon suggested this for me and I'm thinking for $20 I might just give it a try. Has very good reviews too.
Forum Discussion
You are right.
Generally, if you are getting near full early in the day, drop to float for the rest of the day; but if you are not getting to near full until late in the day, just leave it at Vabs till dark and start over in the morning.
If you want to keep the voltage high as long as possible, you can also adjust your float voltage to as high as it will go so the drop from Vabs will be small.
For storage the batts will be full so you want to drop to float right away. With an adjustable voltage, you can make your storage Vabs the same as your float voltage so it won't spend any time at the higher voltage.
As you indicate there is no "set and forget" in this solar game.
Generally, if you are getting near full early in the day, drop to float for the rest of the day; but if you are not getting to near full until late in the day, just leave it at Vabs till dark and start over in the morning.
If you want to keep the voltage high as long as possible, you can also adjust your float voltage to as high as it will go so the drop from Vabs will be small.
For storage the batts will be full so you want to drop to float right away. With an adjustable voltage, you can make your storage Vabs the same as your float voltage so it won't spend any time at the higher voltage.
As you indicate there is no "set and forget" in this solar game.
