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When not used the PowerTunes, it should be recharged every 3 months!
To recharge with AC charger:
(1)Turn the rotary switch to the
“OFF” position.
(2) Plug 120V AC charger into charger input socket on the front of the unit.
(3) Plug 120V AC charger into 120V AC electrical socket.
(4)Never stop until the battery is fully charged for about 36 hours.
CAUTION:
The 36-hour charging time for the unit assumes that there is 120V at the AC wall outlet. If the
voltage is less than 120V AC, it may take more than 36 hours to fully recharging.
Once fully charged, the charging current automatically reduces to a floating charge mode, and the
unit may be left permanently connected to the AC charger.
Charging with the DC to DC charging cable with cigarette
Note: DC cable is not included for this unit.
WARNING: Fire and Explosion Hazard
Do not use this recharging method if your vehicle’s electrical system operates above 15V. This may
lead to accumulations of hydrogen, causing exposure to fire and explosion hazard. This condition is
typically found in marine appliances or portable generators with DC output.
Important:
The AC port will automatically shut down, i.e., disconnect from the DC source in the
event of an over-voltage condition such as reaching over 15DC.
However, it is recommended to detach the DC to DC charging cable from the unit and vehicle as
soon as the battery is fully charged or if the vehicle’s engine is turned off.
Do not leave the
PowerTunes
permanently connected to the vehicle’s 12 accessory outlet.
To recharge with the DC to DC charging cable with cigarette:
1. Open the plastic cover that protects the DC socket.
2. Insert one plug of the DC to DC charging cable into the 12VDC accessory socket in the vehicle.
3. Insert the other plug of the DC to DC charging cable into the DC socket on the front of the
PowerTunes.
Replace an Internal battery
Battery Life
PowerTunes used a high quality lead-acid AGM battery and it serve as a reliable power source for
years when properly maintained. To maximize battery life, we strongly recommend to recharge the
PowerTunes after each use and in every 3 months.
Obtaining a Replacement Battery
When the battery reaches the end of its service life, you may purchase a replacement battery
through Northern Tool + Equipment. The items # of replacement batteries are list as below
- Item 82491
– NPower 18AH Sealed Lead Acid AGM battery
- Item 82942
– NPower 22AH Sealed Lead Acid AGM battery
Installing the Battery
CAUTION:
Batteries contain acid and produce explosive gases. Shield eyes and face
from batteries all the time.
CAUTION:
Wrong connection on the battery terminals will damage the PowerTunes.
