42V Smart Lithium Battery Charger for Sale

42V4A5A battery charger
In stock
Shipping cost around: 16$ to 38$ delivery to Netherlands
  • Please check the plug and connector carefully when you place the order.
  • AC Input: 100-120V/220-240V/100-240V
  • Material: Aluminum alloy with Fan
  • Application: Electric Vehicles & Tools
  • Various Protection: Over current, Over Voltage, Over Temperature, Short Circuit and reverse polarity.
  • The product can be Customized!


Battery matched


36V battery


48V battery


52V battery


60V battery


72V battery

This charger with multi-protection is suitable for electric three-wheel, electric bike or other EV products. it is an automatic smart intelligent charger, easy to use and carry, durable and high efficiency. It is a good choice for your electric vehicle.


Advantage :

1. Full automatic transition of CC CV and float/cut-off (CC CV 3 stage charger).

2. Precise limit of voltage& current, guarantee fully charged and avoid over charger.

3. Protections: short circuit, over voltage, over temperature, reverse polarity protection, Dc output isolated from AC input.

4. High Efficient : > 85% PFC :0.96 Eco-friendly.

5. Current & voltage display. Two led indicators LED1 Red ( power on ), LED 2 Red/Green ( charging/full )

6. Safety and high quality, Advantage high-frequency switching mode power supply technology


7.Aluminum housing, lightweight, portable, elegant and reliable.


Feature :
1. Aluminum case, lightweight
2. Input voltage ; AC 100 V ~240 V 50 / 60 HZ
3. Charge mode : 3 stage ( CC CV float mode )
4. Charging: High saturation and efficiency
5. Input plug(power cords): EU US UK AUS Italy Plugs etc ( can be Customized)
6. Output Connector: DC jack, XLR, JST, Cigar Lighter, Alligator Clips etc


The 3-stage mode charging : 

The first stage ( constant current ): The charger will supply constant current for the battery.

The second stage ( constant voltage ): The voltage will be rising under the first stage. When it reaches constant voltage value, it will turn into the second stage. The current will be slowly smaller until it reduces to floating value, the CV stage will end.

The third stage ( Floating charging ): When the current is approaching the value of transition, the charger will cut down to the given current gradually, that means the battery power is full and indicator light turns to green. At this moment, the battery can be stopped charging or keep on trickle current charging for half an hour.

battery charger

(1) How to calculate the charging voltage for the battery?

Normally single cell charging voltage for li-ion is 4.2V, charging voltages for batteries are as follows:

24V Li-ion battery (7 cells in series): 7x4.2V=29.4V;

36V Li-ion battery (10 cells in series): 10x4.2v=42V

48V Li-ion battery (13 cells in series): 13x4.2v=54.6V

60V Li-ion battery (16 cells in series): 16x4.2v=67.2V

72V Li-ion battery (20 cells in series): 20x4.2v=84V

If your battery is different voltage, please inform us. Or if your battery is with different cells number in series, you can calculate the charging voltage yourself.

(2) How to calculate the charging time for the battery?

The charge time depends on the battery chemistry and the charge current.
Discharge time is basically the Ah or mAh rating divided by the current.

So for an 11.6mAh battery with a load that draws 2A, the charging time is about:


More Information
Material Aluminum alloy with Fan
Weight N/A
Color N/A
Install way N/A
Rim size N/A

About shipment ( Important! )

Please read the following terms before placing an order.

The time showed in the " Shipping Method" means the transport time, not including the handling time which takes 1-7 days usually.

Because of the Coronavirus, there are fewer transportation lines, the transportation will take more time than shown on the web, such as DHL may take 10-15 days. Please understand.

1. Battery/ Products with battery

Handling time: 3-7 days
Thanks for purchasing our product.
The battery is a special product which needs several cycle tests before delivery, so production and test time need about 3-7 days.

Due to the express shipping regulation of express company for the risky item like the battery, we ship the battery separately from other goods and via special air method to the destination country, then to your door via UPS, FedEx, or some other express company.

Noted! Handling time of E-bike or electric bike kits please check on their product page.


Shipping time

Customs Tax

European Union

6-12 days


(Delivered Duty Paid for the following countries:

Germany, France, Belgium, Luxembourg, Netherlands,
Denmark, Italy, Czech Republic, Poland,
Austria, Spain, Ireland, Portugal, Sweden)

DDU ( Other countries in European)


 8-15 days

DDP(Delivered Duty Paid)


12-20 days

DDP(Delivered Duty Paid)


 8-15 days


Service area not included

PO BOX; affiliated islands, remote areas: 006-009;  PUERTO RICO AND VIRGIN ISLANDS; 966-969 HAWAII AND GUAM;995-999 ALASKA,  etc. Customers from these areas please contact us to confirm the cost.


10-20 days

DDU(Delivered Duty unPaid)

Service area not included:

P.O.BOX, military address, Northwest, Territories, Nunavut, Yukon, customers from these areas please contact us first to confirm the cost.

South Africa

10-15 days

DDP(Delivered Duty Paid)

Australia, New Zealand

7-15 days

DDU(Delivered Duty Unpaid)
NO tax declare value;AU < AUD1000; NZ<USD300

Malaysia, Thailand

5-7 days

DDU(Delivered Duty Unpaid)


3-5 days

DDU(Delivered Duty Unpaid)


3-5 days

DDU(Delivered Duty Unpaid)


 5-10 days

 DDP(Delivered Duty Paid)

Service area not included
Hokkaido; Okinawa; Fukushima, Radiation Control Area.

We only ship battery/ products with battery to the above countries at present. But we will try our best to add channels to more countries in the future.




2. Other products

Handling time

3-7 days

You can choose the shipping way when you checkoutand see the shipping items.

 Please note: Import duties, taxes, and charges are not included in the item price or postage cost. These charges are the buyer's responsibility.

Usually, we will declare a reasonable minimum value to save your customs tax. But due to the different policies in different countries, the customs may ask you to pay the tax.

Ship via ChinaPost

10-30 days

Express company

5-10 days


We understand the importance of the right product and the right fit, we sincerely want you to love your items. To make a return, please follow these guidelines:


Defective item

If an item is defective when you receive it, it will need to be returned to us for a full inspection to ensure it is covered by the warranty. To return a faulty item please follow the procedure below:

To qualify for a return:

Returns will be accepted within 15 days after you receive the product. 

The item(s) must be in new with original packaging.

The damaged item even following the regular operation.

Proof of defective item required.


Items not acceptable by return:

The item was not purchased from ELECYCLES.

The item is unclean.

The item was damaged by improper use or damaged in an accident.


Once the product has been returned to us and has been ascertained as complete and undamaged (including the “original sealed” product box including its original packing materials) your purchase price, and original shipping will be refunded to you. We do not refund any applicable tax. Note that if the product is defective through no fault of your own, you may either request a repair or an exchange.


All returns:

Refunds, including original shipping, will be refunded to the credit card account/ corresponding account used for purchase within 30 days after the return is received. A refund will be applied to the original card used in the transaction.

If an item is returned that does not meet the above criteria, the return will be declined and the item returned to you.


Please noted

1. For the electric bikes or ebike kits or the electric wheelchair or the electric handcycle, shipping fees to return the items are at the customer's own expense.

2. Please consult your local post office to confirm the actual return shipping fee. We advise you use the cheapest registered airmail method that is available.


Wrong item

If we have accidentally sent you the wrong item, you do as below.

A. If the wrong item is acceptable, you could ask for a special offer for this item, the difference would be refunded to your account.

B. You could request the return. The purchase price and original shipping will be refunded.

C. Please contact us if you have any other query or request.


Unwanted item / no faulty

If you have changed your mind on your purchase, please contact us.


If you have any questions regarding your purchase or its warranty, please chat with us one line or email to support@elecycles.com.

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