One other tid-bit that everyone should be aware of with regard to LI batteries is the storage time and effect.
As many here are stockpiling product in the event of a FDA ban, there are some downsides to stockpiling LI batteries.
If stored at room temp LI cells discharge by 20% and loose capacity at the same rate within a year.
As such it is expectable that the voltage will eventually drop below the automated cut out limit over time.
Once this happens your regular charger will not work to recharge your battery.
Kinda stupid if you ask me, to put a low voltage cut out limit to protect the battery if a normal charger will not work to recharge the batter once this occurs thereby rendering the battery useless to its' owner.
Oh well I guess that's to help sell more batteries, but I digress.
As mentioned in the OP, the manufacturers ship LI batteries with a partial (50% or so) charge, therefore, if you buy a bunch of batteries and intend to store them for long periods of time it would be wise to charge them full to prevent the voltage from falling below this cut out voltage.
Naturally even storing fully charged has drawbacks as the full charged battery will degrade at a faster rate as far as loss of capacity.
In order to reduce this degradation it is recommended that LI batteries be stored at 32 degrees.
It would also be wise to recharge your spare batteries periodically.
This will both reduce the voltage loss and the degradation rate.
As many here are stockpiling product in the event of a FDA ban, there are some downsides to stockpiling LI batteries.
If stored at room temp LI cells discharge by 20% and loose capacity at the same rate within a year.
As such it is expectable that the voltage will eventually drop below the automated cut out limit over time.
Once this happens your regular charger will not work to recharge your battery.
Kinda stupid if you ask me, to put a low voltage cut out limit to protect the battery if a normal charger will not work to recharge the batter once this occurs thereby rendering the battery useless to its' owner.
Oh well I guess that's to help sell more batteries, but I digress.
As mentioned in the OP, the manufacturers ship LI batteries with a partial (50% or so) charge, therefore, if you buy a bunch of batteries and intend to store them for long periods of time it would be wise to charge them full to prevent the voltage from falling below this cut out voltage.
Naturally even storing fully charged has drawbacks as the full charged battery will degrade at a faster rate as far as loss of capacity.
In order to reduce this degradation it is recommended that LI batteries be stored at 32 degrees.
It would also be wise to recharge your spare batteries periodically.
This will both reduce the voltage loss and the degradation rate.