58 Astro 320 and DC40 Owner’s Manual
Device Information
See the Important Safety and Product
Information guide in the product
box for product warnings and other
important information.
The temperature rating for the device
may exceed the usable range of some
batteries. Alkaline batteries can rupture
at high temperatures. Alkaline batteries
lose a signicant amount of their
capacity as temperature decreases. Use
lithium batteries when operating the
device in below-freezing conditions.
See page 5.
1. From the main menu, select Setup
> System > Battery Type.
2. Select Alkaline, Lithium, or
Rechargeable NiMH.
When you do not plan to use the
Astro for several months, remove the
batteries. Stored data is not lost when
batteries are removed.
The normal long-term decrease in
the charging capacity of lithium-
ion batteries can be accelerated by
exposure to elevated temperatures.
Storing a fully charged battery for
more than three months in a location
that exposes it to high temperatures
(above 70°F or 21°C) can signicantly
reduce its recharging capacity.
• Before storage, charge the
battery to approximately 50% of
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General
Weight and Dimensions
