60
BATTERY PACK &
CHARGER DETAILS
ARCHITECTURE & RATIONALE
Teal purposefully designed the power source for the
Teal 2 and the TAC to use the exact same Teal
Performance Battery Pack and Teal Battery Charger for
both systems.
The battery charge level is visibly indicated by a 5-
segment LED directly on the battery pack with a single
tap of the power button. Batteries charge from 10% to
80% in 36 minutes and to 100% in 65 minutes.
When battery packs that have been exposed to low
temperatures (32 °F (0 °C) or lower) for more than one
hour, they must be pre-heated on the charger before
flight.
Failure to pre-heat the battery pack before flight could
reduce overall battery performance and affect overall
flight time, up to 28%.
When the cold battery pack is placed on the charger,
the 5-LED bar graph will indicate that the thermal
blanket is activated by showing a green LED light
pattern starting in the middle moving outwards. When
this animation stops and the LED indicates the solid
percentage of charge, it can be used for operations.
The amount of time this takes will vary upon the
starting temperature of the battery pack.
The Teal Performance Battery Pack consists of six (6)
Sony VTC6 18650 lithium-ion cells wired in series to
produce a total nominal voltage of 22.2 volts (3.7 VDC
per cell). The output voltage ranges from 21.6 VDC (3.6
VDC per cell) to a maximum of 25.2 VDC (4.2 VDC per
cell). The cells have a capacity of 3 Ah (amp-hours),
producing a total nominal energy of 66.6 Wh (watt-
hours).
This results in approximately 60 usable Wh from the
pack, which equates to flight time of up to 25 minutes
for the Teal 2 and up to 8 hours of operation on the
TAC.
The Teal 2 and the TAC do not support a
battery pack hot-swap. Be sure to power
down the battery pack before removing
and replacing it.
Per regulation, battery packs are shipped at not more
than 30% state of charge and must be fully charged
before using. The battery pack is configured by the
factory to be in a very low power state called shipping
mode in which only 15 uA is consumed. This results in a
shelf life of several years.
When the user removes the battery pack from shipping
mode, the lowest power state that the battery pack
can enter is sleep mode. The battery pack will
automatically go into sleep mode upon 72 hours of
inactivity. The current consumption in this sleep mode
is approximately 675 uA.
If a user removes the battery pack from shipping mode
without further charging, the shelf life is 34 days from
30% to a 10% state of charge, and 52 days (7.4 weeks)
to 0% state of charge. If a user removes the battery
pack from shipping mode and fully charges the battery
pack, the shelf life in sleep mode is 163 days (23 weeks)
from 100% to a 10% state of charge, and 182 days (26
weeks) to 0% state of charge.
Pack dimensions are: 5.03” L x 2.86” W x 0.96” H
(127.68 mm L x 72.67 mm W x 24.5 mm H).
Each pack weighs approximately 0.84 lbs
(380 g).
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