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UNRC UN-[A9] Plus Battery (Li-Po) Balance Charger (Parallel Charging)
UNRC UN-[A9] Plus Battery (Li-Po) Balance Charger (Parallel Charging)
Click to enlarge
 
Details
Manufacturer: UNRC
Model: UNRC-UNA9-PLUS
Weight: 1250g
Remark: UNA[9] has 300W Power (1-9S)
Availability: Usually ship within 48 hours (Estimated)
Price: USD79.99 USD57.99  Save 28% Off
Available Options:
Power Socket:
Power Supply:

More Details   |   Video Proof of Working

New in 2012!! UN-A9 Plus is an upgrade version of the previous successful UN-A6 Plus Charger. Might be you have not heard of UNRC but their chargers are very famous in China R/C industry for the price and quality in the field of Li-Po Charger.

This is an Intelligent Parallel Charger for Li-Po / Li-ion / Li-Fe. Its intelligent design does not work like those old style balance chargers (eg. iMax B6) which always discharge and recharge the battery in order to make all the cells balanced (this is just very stupid and wasting time). Instead of that, UNA9+ Charger has individual IC to monitor the voltage of each cell and stop charging that particular cell when it is full while other cells will continue to be charged until they are full. So it does not require to balance a battery pack at all because of this new methodology.

Even some expensive charger brands (eg. Made in Germany, USA, Japan) still use the old methodology to keep on discharging and recharging the battery pack in order to balance all cells. Some chargers would not even charge the battery and warn you the battery pack is defective due to the voltage of 1 or more cells of a battery pack is much lower than the other cells. UNA9+ charger can handle this problem in most cases because it treats each cell individually.

Trash your old charger and get a new UNA9+ now. You existing charger is expensive but it does not mean better than UNA9+, it could just mean you have only "over paid" for a better looking casing and design but with old technology.

More Information
One of the great features of UN-A9 Plus is that you can charge multiple batteries at once. You can either charge
  • 1 x 6-Cell Battery
  • 2 x 4-Cell Battery
  • 3 x 3-Cell Battery
  • 4 x 2-Cell Battery
simultaneously to save your time.



Package 1: UN-A9 Plus Charger Set (w/ Cable & Power Supply) -- Wiring Example



This is a "Ready To Charge" full package which includes:
  • 1 x UN-A9 Plus Charger
  • 1 x Charging Board (the board where you connect the batteries)
  • 1 x RCX03-181 - 12V 30A 360W Power Supply (click here to learn more)
  • 1 x AC Adapter Cable w/ Tailored Made Connector (Power Input)
A close up on wiring between Power Supply and Charger.
 


Package 2: UN-A9 Plus Charger Only (No Cable, No Power Supply)



This is a "Charger Only" package which excludes Power Supply & Cables:
  • 1 x UN-A9 Plus Charger
  • 1 x Charging Board (the board where you connect the batteries)
Features
  • Aluminium Case for Better Cooling
  • Shipped with Double Fans (Automatically ON/OFF)
Specifications
  • Operation Voltage: DC 12-14V
    • Warning: Do not use a Power Supply over 14V of Voltage. There will be a repairing cost for over input current because the factory knows that when the particular ICs burnt out on the PCB. Just use ~12V power input for the charger for safety reason.
  • Max Charge: 300W
    • Please note that if you need to charge a battery at high *A* (Current Input), you better get a Power Supply above 300W (eg. 360W)
  • 2-9S Li-Po Battery
** Warning: Unattended battery is dangerous while charging with any battery charger.
** Warning: With experience, it is good to have a >=25A power input for this charger if you charge the batteries in high current (eg. 8A.)

** Although many chargers have a discharge function for balancing (or for Storage Mode) but it is usually limited to 5W only which is a joke (5W is too low). Because if you discharge a battery with large capacity, then you need to wait for a terrible long time (usually the charger will timeout the operation after a period of time). If you need  the discharge function, please consider to buy the RCX 150W Discharger OR RCX 50W Discharger. They work super fast for balancing and discharging.

** When you need to discharge a battery to Storage Mode (Usually between 3.8-3.85V), please do not use UNA9 to discharge the battery from higher voltage (eg. 3.9 - 4.2V) because it will not work. You should use the battery below 3.8V (each cell) and then select a mode to charge the battery to Storage Mode. Alternatively, get one of the RCX 50W or 150W Discharger instead.

Video in Action
 


More Images
UNRC UN-[A9] Plus Battery (Li-Po) Balance Charger (Parallel Charging)
Click to enlarge
UNRC UN-[A9] Plus Battery (Li-Po) Balance Charger (Parallel Charging)
Click to enlarge
UNRC UN-[A9] Plus Battery (Li-Po) Balance Charger (Parallel Charging)
Click to enlarge
UNRC UN-[A9] Plus Battery (Li-Po) Balance Charger (Parallel Charging)
Click to enlarge
UNRC UN-[A9] Plus Battery (Li-Po) Balance Charger (Parallel Charging)
Click to enlarge
UNRC UN-[A9] Plus Battery (Li-Po) Balance Charger (Parallel Charging)
Click to enlarge
Current Reviews: 3
This product was added to our catalog on Wednesday 13 December, 2017.
** product specification may vary from time to time and photo(s) is for illustration only
Reviews
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