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Doss ZD-20L Manual page 2

Battery powered soldering iron with pivoting head

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• Comes with 2 in 1 non-detachable heater with tip(79-0021).
Spare tips
Battery Instructions
The item charges through a DC 5V Type-C interface. Taking a 2200mA battery as an example, it can be used
for more than 2 hours when fully charged. When the light becomes dimmer, it indicates the battery needs to
be charged. The red light is on during charging and it will turn to green after the battery is fully charged.
Note: Use the original battery. If purchased separately, it should be a 3C or above-rated 18650 rechargeable
battery.
How to change the battery
For the first use, open the battery compartment and insert the battery (Note: Ensure correct polarity when
inserting the battery, positive end inward, then close the cover).
Operation
Open the packaging and check all parts. Do not use if any parts are damaged.
Place the item on the soldering iron stand.
Place the item on a stable and dry surface.
Wait for the tip to reach the desired temperature. Test the temperature by touching the solder with the tip.
If the solder easily melts, you can begin soldering.
Before use, tin the heated soldering iron tip with solder.
Heat the soldering joint with the tip and apply solder.
Allow the soldering iron to cool naturally on the stand.
Do not file the soldering iron tip or it will get damaged.
Always place the soldering iron on the stand when heating or during breaks in soldering.
Ensure a clean working environment when soldering.

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