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Hooray for the tinyVA battery.? I had not used my unit in over a year, turned it on, and the battery was at almost full charge.? To me, that is an outstanding shelf life from a quality rechargeable battery.? Thank you.

Lithium Ion batteries have almost zero self discharge. So providing there is no current draw they should remain charged anlmost indefinitely.

Having said that, it’s kinder to the battery to not store it fully charged. For long term storage around 50% SOC is much kinder to the longevity of the battery. Peter.