1600A01A91.qxp_7760 3/4/19 1:55 PM Page 12
Your Dremel Lite 7760 does not come
completely charged from the factory. Be
sure to charge tool prior to initial use.
Insert USB cable 13 into USB port of
power adapter 14 (Fig. 1). If power
adapter is not included, charge tool
using 5V/1A minimum USB power
Plug power adapter 14 into standard
Open Micro USB port cover 11 and
plug micro USB plug into Micro USB
The battery charge indicator 9 indicates
the charging progress. During the
charging process, the indicator will glow
green. The battery is fully charged when
the indicator light turns off. Charge time
is approximately 2 hours and 45
It is normal for the handle of the tool to
get warm during charging.
Note: charging function stops while tool
is running and resumes again after tool
is turned off.
When the battery is fully charged,
disconnect the Micro USB end of the
cable 13 from the tool and close the
Unplug the power adapter from the
power outlet (unless you are charging
▶ Battery Charge Indicator
This tool is equipped with a charge
indicator 9 that tells you how much
charge your battery has. When the light
is red, the battery is almost empty.
Note: Red light may also indicate that
the tool is stalling. Refer to "Electronic
Monitoring" on page 16.
When the battery is depleted, the tool
will turn off automatically. This will be a
sudden stop as opposed to a gradual
slow down of the tool. Simply recharge
Charging the Tool
▶ Important Charging Notes
Note: Use of power adapters or battery
packs not sold by Dremel may void the
Lithium-ion battery will hold its
charge while in storage for up to 2
years so it's always ready when you
The power adapter was designed to
fast charge the battery only when the
battery temperature is between 32˚F
(0˚C) and 122˚F (50˚C).
A substantial drop in operating time
per charge may mean that the battery
pack is nearing the end of its life and
should be replaced. For service of
your tool, please contact Dremel at
If battery does not charge properly:
a. Check for voltage at outlet by
plugging in some other electrical
b. Check to see if outlet is connected
to a light switch which turns power
"off" when lights are turned off.
c. Check USB terminals for dirt.
Clean with cotton swab and alcohol if
d. Check to see if USB cable is
properly connected to the tool and
the power adapter.
e. If you still do not get proper
charging, send tool and power
adapter to your Dremel Service