Magtek kDynamo Air, Installation And Operation Manual

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3 - Operation
kDynamo| Secure Card Multimedia Device for iPad | Installation and Operation Manual
Page 25 of 34 ( D998200284-10 )
3.4.2 How to Check Battery Level
To check the charge level of the device’s rechargeable battery, make sure the device is powered on and
awake. The General Status LED blinks more frequently as the need to recharge becomes more urgent.
During charging, the General Status LED blinks less frequently as the battery charges. For details, see
section
3.2 About the General Status LED ).
Custom host software may also query the device and show its current charge level on the host display at
all times for convenience. For details, see section
5 Developing Custom Software .
3.4.3 How to Charge the Battery and Connected Host
To avoid possible damage to the host or the device, only use an Apple USB power adapter
designed for the iPad host you are using, and the cable included with kDynamo.
Periodically recharge kDynamo’s battery and the connected iOS host by using the included USB-C cable
to connect it to the Apple USB power adapter included with the iPad host.
The device requires a USB connection that can provide at least
2.4A @ 5V (12W) . The device
automatically powers off if the battery level is too low to reliably process a transaction. A full recharge
cycle for a completely drained battery, regardless of whether kDynamo is pass-through charging a
connected iPad host, takes approximately 4 to 5 hours.
3.4.4 How to Power On / Wake Up from Sleep Mode / Power Off
In Powered Off mode (General Status LED is off) or in Sleep Mode (General Status LED is lit solid),
power on or wake the device by tapping the pushbutton. In response, the device lights the General Status
LED, then beeps once, and transitions to either Idle Mode or Connected Mode. For details, see section
3.1 About Operating Modes and section 3.2 About the General Status LED .
To power off the device, press and hold the pushbutton for 2 to 3 seconds until the General Status LED
turns off and the device beeps twice.
3.4.5 How to Force Reset
To force the device to reset, use a small tool such as a paperclip to carefully press the reset switch
recessed inside the small hole on the back of the device (see Figure
1-1 ).