Specifications

Capacity and Voltage

Model

Voltage, nominal (V)

Voltage, min - max (V)

Capacity (Ah)

Capacity (Wh)

SL8 - Air

21.6

18 - 25.2

7.3

157

SL4 - Ground

21.6

18 - 25.2

4.1

86.4

Ambient Temperature

-20 °C to 50 °C

Battery Cell Temperature

10 °C to 50 °C

Charging Temp

0 °C to 50 °C

Weather

Moderate rain (~3 mm per minute)

Drop rating

1 meter

USB Power Delivery

60 Watts (Up to 3 A at the following voltages: 20, 15, 12, 9, 5)

Cell Chemistry

Lithium-Ion

Cell Type

SL8 : Samsung 40T

SL4 : Lishen LR2170SF

Max Continuous Current (10 s)

SL8 : 80 A

SL4 : 13.5A

Max Peak Current (1 s)

SL8 : 120 A

SL4 : 20 A

Mass

SL8 : 1035 g

SL4 : 600g

Transport

Airline Travel

Please consult local regulations.

*SL-4 model is not compatible with Astro.

Detail of FAA regulations here:

Shipping

We’ve found that FedEx provides the easiest path to ship batteries. Their website has a search tool to find FedEx locations that can accept batteries can be found good shipments, go to https://www.fedex.com/locate > More... > Dangerous Goods Shipping > and Search in your area.

If you’d like to pack the batteries yourself, guidelines can be found in the UPS guide to safely packing batteries. Refer to the Lithium batteries section (SL batteries are classified UN3481). These guidelines are universal across shipping providers.

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