54.6V 3A Charger 13S 48V li ion battery Charger Output DC 54.6V With cooling fan Free Shipping

54.6V 3A Charger 13S 48V li ion battery Charger Output DC 54.6V With cooling fan Free Shipping
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Free Shipping! 48V 10A charger,  54.6V 10A lithium battery charger, Output 54.6V 10A, Used for 13S 48V Lipo/LiMn2O4/LiCoO2/LiNiCoMn2O4 batteries.




This type charger is used for 48V li-ion battery, which can be used for electric scooter, electric motor car, electric vehicle, storage system and light etc.

1. CE & ROHS Certified, Safety and High Quality.
2. Full automatic transition of CC, CU and Float/cut-off.

3. Precise limit of voltage & current, guarantee fully charged and avoid over charge.
4. Portections: over current, over voltage, short circuit and reverse polarity.
5. High Efficiency: 95%-98%, PFE: 0.96, eco-friendly.
6. Two LED indicators, Aluminium, elegant and reliable.



48V 10A 06.jpg





                                    Totally Automatic Switch-Mode Battery Chargers


                                       "Suitable for Li Ion and Li Polymer Batteries"

Summary:      54.6V, 10A Constant Current


-   Automatic Cut-off and then true Float. Can be left connected indefinitely without harming the battery.

     - Input Universal (90VAC~264VAC) - Suitable everywhere in the world.

-    Many advance features described in this spec.

     - Very small size and very lightweight


1.  Switch-Mode Technology:

 ANN\'s Battery Charger transforms the input into charger output using high Most of the battery chargers use linear technology, which convert the 115 VAC or 230VAC to 54.6 VDC at 60 Hz. This requires a large transformer, which has the disadvantage of lower efficiency resulting in higher heat generation, larger size and weight.


ANN\'s Battery Charger transforms the 90VAC~264VAC into 54.6 VDC at 100,000 Hz (1667 times faster than conventional charger) which requires a much smaller transformer and this results in a unit of smaller size, low weight and improved efficiency.


The ANN4810 uses sophisticated electronic circuitry with microchips. All present day computers use switch-mode technology.


2.  International Safety Approvals & Listing:



3.  Input Requirements:

 a)Universal 100~240VAC (Range 90VAC~264VAC). No switch to change AC voltage.

 b)47 - 63 Hz

Input AC tolerance +/- 20%. This means  ANN4810 will operate satisfactorily in areas where the input voltage is low.

This charger is also suitable for every part of the world. where the AC is 100VAC (Japan), 115VAC (USA), 230VAC (Europe) or 240VAC (UK).


4.  Output:

 10 Amps Constant Current @ 54.6Volts DC

a) Line Regulation @ Full Load 2%

b) Load Regulation 3%

c)Ripple Voltage: Very low

The peak-to-peak ripple voltage into a resistive load is less than 200mV for the output voltage above 54.6VDC.

5.   Charging Cycle:

 If the LED1 is ON ( Red ), it shows that input power is ON.

The charging curve is attached. The explanation of the charging cycle is as following.







LED Indication

Stage 1

Constant Current mode

CC mode


to 54.6V


Stage 2

Constant Voltage mode

CV mode

Reduces from 1A

Holds at 54.6V



      * CC mode = Constant current charge

      * CV mode = Constant voltage charge

      *** See Stage 2 description below


Stage 1: Constant Current Mode (CC):

The charger changes to constant current 10A. When the battery voltage reaches up to 54.6V, the charging stage changes from CC (Constant Current) to CV (Constant Voltage) mode.


Stage 2: Constant Voltage Mode (CV):

      In this stage the voltage of each cell in the battery is equalized. The charger holds the battery at 54.6V and the current slowly reduces.

6.  Two colors in one LED:

LED2 shows the charging status. The LED ON shows presence of input power. The bicolour LED shows Red when charging and changes to Green when the battery is fully charged.


7.  Reliability:

a)Mean Time between failures (MTBF):

30,000 power-on-hours (POH) or greater. This translates into 10 years of everyday operation of  8 hours.

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