XTAR L4 +1.5v Lithium battery - first impression!

XTAR Charger: amzn.to/3PEzTif
XTAR Batteries: amzn.to/3RrkTpm
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[@ineedanswer]

what is the difference between xtar BC4 charger and xtar L4 charger?

[@KeigoMoriyama]

Sorry I don’t have the bc4