Gray Area
Well-Known Member
I'm in general agreement with the discussion I think. I've measured power drawn from the battery in PA mode, it tends to be fairly small in level, depends on the battery charge state and PA Voltage (low battery charge and high PA voltages are lowest). All the power taken from the battery is subtracted from that taken from the PA supply. The total used is the same. Obviously if the Solo battery isn't installed, it's voltage is zero calling for all the power from the PA.
While other schemes could have been used, Solo uses it's processor to control and monitor charging. Or run the heater (in either PA or Battery mode). But it can only do one function at a time, determined by what the voltage coming in is.
Yes, I think there's serious advantage in avoiding both the top and bottom end of charging. Makers like to push it (battery life sells well) but it kills batteries off young. As CZ points out, Solo already tries to help us out by stopping a bit shy of what other makers would charge to and 'hides' the last few steps at the bottom so we'll decide to recharge earlier. I think both are worth expanding on a bit. Well respected testing says dropping the top 10% of the charge can double the number of cycles from the battery. Meaning it could last years longer in normal use?
Check out the stuff around table 4:
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
OF
So (in layman's terms), would you say that:
Not letting the unit fall below two lights on the battery indicator before charging , and...
Letting the unit charge up to seven, but not fully (solid green LED)...
... would be good practice?
TIA