The simplest alteration of the screwdriver’s charger for any lithium batteries, lithium-ion LI ion, you can charge the car’s battery and other electronic equipment.
Voltage and current regulator here - ali.pub/3ri968 $ 1.25 per pc
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The indicator of the charge of lithium batteries here - ali.pub/3ri9i3 0.75 $ per pc
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Lithium high-current batteries here - ali.pub/3ri9sz 2.5 $ per pc
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lithium charger # Li-ion charger with your hands