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The instrument comes together with a universal EURO plug charger that may be powered
by voltages ranging from 110 to 240V @ 50 - 60 Hz. Should you use the charger in areas where
no socket compatible with the Euro plug is available, a proper adapter should be applied (one
should purchase an adapter as such separately).
When the battery is being charged, one can use the headphone amp. However, in circum-
stances as such the charging would take longer. It is recommended that the battery is charged
with the headphone amp turned off.
When, after the charger is plugged in, the red charging LED does not light up, nor does the
green LED become active, this may mean that your charger, charging cable, or charging port
has been damaged, or that the cable is plugged in improperly, or that the battery is unplugged.
In the worst-case scenario, the above symptoms may mean that the headphone amp has been
damaged. In a situation as such, try unplugging and plugging in the charging cable.
Alternatively, you could also use another compatible charger, or take out and reinsert the
battery. The battery voltage should not be lower than 2.5V. If the value is lower, then this may
mean that the battery has been damaged.
Note:
It is not recommended to plug Cali into the PC USB port, as most of these ports do not provide
current that has proper charging parameters for the battery applied.
Tip:
The internal battery may also be charged with the use of an external power-bank providing
5V/1A charging power. To provide a full charge, at least 5000 mAh power bank is required.
The power bank could be used as an alternative charging unit in places where no mains access
is available. It is also possible to use another charger that has output parameters equivalent to the
charger that comes with the instrument (5V, 1A) and has been fitted with a micro USB plug.
In exceptional circumstances, one may remove the battery from its compartment and charge
it in an external dedicated 18650 3.7V Li-Ion battery charger.
Important!
The micro-USB port is used solely for charging the battery. It is not used as an audio output.
Headphone Amp – How long can I use it on a single charge?
When the battery is fully charged, with 32 Ohm stereo headphones being plugged in, you can
use the headphone amp for around 26 hours, with comfortable playing volume.
Note:
Do not leave the mini-switch in the middle or top position - when the switch is in these positions,
power is supplied to the headphone amp. This may lead to a rapid discharge of the battery.
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www.mayones.com
Mayones Cali Bass – User Manual
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