E-flite UMX Spacewalker Instruction Manual download pdf (Page 5)

Your aircraft comes with a 1S 3.7V DC Li-Po

battery charger and 1S 3.7V 70mAh 14C Li-Po

battery. Refer to the charging warnings. It is

recommended to charge the battery pack while

you are inspecting the aircraft. The ﬂ ight

battery will be required to conﬁ rm proper

aircraft operation in future steps.

Remove the cover on the bottom of the charger

and install four of the included AA batteries, noting

proper polarity. Replace the cover after the AA

batteries are installed. Only use alkaline AA

batteries.

Battery Charging Process

NOTICE: Charge only batteries that are cool to the

touch and are not damaged. Look at the battery to

make sure it is not damaged e.g., swollen, bent,

broken or punctured.

1. Slide the battery into the slot on the charger

and press it into the charge jack/connector

located at the bottom of the slot.

The end cap of the battery is specifically

designed to allow the battery to fit into the

slot one way (usually with the label on the

battery facing outward) to prevent reverse

polarity connection. However, check for proper

alignment and polarity.

2. Always disconnect the flight battery from the

charger immediately upon completion of

charging.

CAUTION: Only use a charger speciﬁ cally

designed to charge a Li-Po battery. Failure to do so

could result in ﬁ re, causing injury or property

damage.

CAUTION: Never exceed the recommended

charge rate.

LED Indications

When you make the connection successfully, the

LED on the charger turns solid red, indicating

charging has begun.

Charging a fully discharged (not over-discharged)

70mAh battery takes approximately 20–30 minutes.

As the battery nears full charge, the LED begins to

blink. The intervals between blinks will increase as

the battery comes closer to full charge.

When the LED blinks approximately every 20

seconds, the battery is ready to be removed.

However, the battery can be left charging until the

LED completely goes out for a maximum charge.

CHARGING (Solid Red) ...........................

READY (Blinking 20 sec. intervals) ........

MAX CHARGE (off) .................................

Purchase the optional AC to 6V DC 1.5 amp

Power Supply (EFLC1005) to charge your

battery pack without AA batteries.

CAUTION: Only use an E-ﬂ ite

6V power

supply (EFLC1005) with this charger. DO NOT

use a 12V power supply or property damage

and injury could occur.

If the LED stays on when the ﬂ ight battery is

removed, the AA batteries in the charger are low.

CAUTION: Once charging is complete,

immediately remove the battery. Never leave a

battery connected to the charger.

Battery Charging

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E-flite UMX Spacewalker Instruction Manual Page 5

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