Well......
I do not have one of the RNB Batteries yet.
But batteries and battery charging, etc are one of my hobbies.
Keep in mind that the care and charging regimen for Lithium based batteries is almost the exact opposite of Ni-Cads and NiMH batteries.
Meaning that for Ni-Cad and NiMH batteries, it is a good thing to run them all the way down and recharge them all the way up every so often.
This has to do with the way a Ni-Cad and to some small degree a NiMH battery can develop a 'memory' or poor performance characteristic if
not fully discharged and recharged every so often. I know some will debate whether NiMH develop this effect, let me assure you, they do....just
to a lesser degree.
Now as to Lithium based batteries.... They are the opposite. It IS NOT a good idea to run them down all the way. It WILL cause them to age
faster than normal and they will not last as long as they should. Generally speaking you should try to keep Lithium batteries charged up to about 85-95%
Full capacity. Keep in mind that with a Lithium battery keeping them FULLY charged (100%) is also a BAD thing and will also cause them to age faster
than normal. Typically, you should try not to discharge Lithium batteries more than 50% of their stated capacity and recharge them FREQUENTLY. But also
DO NOT leave them on a charger FULLY topped off for extended periods of time. You WILL lose YEARS of life if you consistently discharge them more than 50%
or keep them 100% fully charged.
I have more than 30 years of experience with Lead Acid, Ni-Cad, NIMH, and Lithium batteries!
If they start out at 4 bars, I would recommend never letting them fall below 2 bars and never leave them on a charger fully charged for days at a time.
Frequently recharging a Lithium battery is less harmful than draining it too far or keeping it fully (100%) charged. Just don't leave them on the charger.
Same thing is true for all your Cell Phone batteries too.....since most all cell phones use Lithium batteries nowadays.
You will get YEARS more life out of it if you follow the above advice, believe me......