Special low self discharge function could make the battery with full of capacity maintain 75% of capacity after 3 year of non-use.
No memory effect ,can be recharged up to 1200 times when fully or partially drained.
Battery storage boxes included, much convenient for your collecting while no use and taking on any occasions.
4 packs 18650 3.7V Li-ion rechargeable batteries and 100% customer smile service included.
Not for the devcies match the Flat Top 18650 battery like Reuleux RX 200 and so on.