Rechargeable lithium-ion battery for SB822
3.7V, 2,4Ah size 14.5 x 43 x 50 mm,
Non-restricted
Common recommendations for storage of Li-ion batteries
are at -20° to 25° C and to charge the batteries once
per year to 40% (or 3.75V/cell) of their capacity and
never let them discharge to below 2.0V