AERDU 5S 21V 2A Power Supply 18V lithium Li-ion batterites battery pack Charger AC 100-240V Converter Adapter EU/US/AU/UK plug
ID: 76965

AERDU 5S 21V 2A Power Supply 18V lithium Li-ion batterites battery pack Charger AC 100-240V Converter Adapter EU/US/AU/UK plug

0.0 ( votes) | 3 orders
US $ 45.45 / piece
Socket Standard


With: constant voltage, constant current, over voltage, over current protection; indicator light conversion; automatic recovery and other functions.

Charging voltage, 21V, the indicator light is green when no load

Charging voltage range, the highest voltage is not higher than 22V, the voltage in the constant current phase is random, but not higher than 22V

Output current, 2A, constant current charging, the indicator light is red

Conversion current, 200mA, after full conversion, the indicator light is green

Ripple and noise (Note 3), <100mVp-p (constant voltage)

Line adjustment rate (Note 4), ±0.8%

Load regulation rate (Note 5), ±1%

DC output power, 42W

Efficiency, >85% (maximum output voltage, full load)

DC voltage adjustable range, 0-21V

Input voltage range, 100 ~ 240VAC; 47 ~ 63Hz; 140-350VDC

Input current, 0.03A/230V

Inrush current, cold start current 2A/230V

Leakage current, <3.5mA

Overload protection, 105%~150% Type: FOLDBACK Current limit output Reset: Automatic recovery

Temperature coefficient, ±0.03% °C (0 ~ 50 °C) OUTPUT

Start, rise, hold time, 200ms, 50ms, 30ms

Shock resistance, 10 ~ 500Hz, 2G 10min. / 1 ??cycle, duration 60 minutes, each axis

Pressure resistance, input--output: 1.5KVAC

Isolation resistance, input and output: 10M Ohms

Working temperature, humidity, -10 ° C ~ +50 ° C, 20% ~ 90% RH

Storage temperature, temperature, -10 ° C ~ +60 ° C, 20% ~ 90% RH

Dimensions, 108 × 42 × 30mm

Weight, 169G

  • Brand Name: AERDU
  • Origin: CN(Origin)
  • Display screen: No
  • Quick charge: Yes
  • Type: Electric
  • Intelligent Charge: Yes
  • Certification: CE
  • Package: Yes
  • Model Number: 5S2A
  • Use: Standard Battery


We are proud to offer international shipping services that currently operate in over 200 countries and islands world wide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.

How do you ship packages?

Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.

Do you ship worldwide?

Yes. We provide free shipping to over 200 countries around the world. However, there are some location we are unable to ship to. If you happen to be located in one of those countries we will contact you.

What about customs?

We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

How long does shipping take?

Shipping time varies by location. These are our estimates:

Location *Estimated Shipping Time
United States 10-30 Business days
Canada, Europe 10-30 Business days
Australia, New Zealand 10-30 Business days
Central & South America 15-30 Business days
*This doesn’t include our 2-5 day processing time.

Do you provide tracking information?

Yes, you will receive an email once your order ships that contains your tracking information.

My tracking says “no information available at the moment”.

For some shipping companies, it takes 2-5 business days for the tracking information to update on the system.

Will my items be sent in one package?

For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.

If you have any other questions, please contact us and we will do our best to help you out.


Order cancellation

All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.


Your satisfaction is our #1 priority. Therefore, if you’d like a refund you can request one no matter the reason.

If you did not receive the product within the guaranteed time(60 days not including 2-5 day processing) you can request a refund or a reshipment.

If you received the wrong item you can request a refund or a reshipment.

If you do not want the product you’ve receive you may request a refund but you must return the item at your expense and the item must be unused.

  • Your order did not arrive due to factors within your control (i.e. providing the wrong shipping address)
  • Your order did not arrive due to exceptional circumstances outside the control of CNTRONIC Consumer Electronics Retailer (i.e. not cleared by customs, delayed by a natural disaster).
  • Other exceptional circumstances outside the control of

*You can submit refund requests within 15 days after the guaranteed period for delivery (60 days) has expired. You can do it by sending a message on Contact Us page

If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.


If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.

Please do not send your purchase back to us unless we authorise you to do so.



Thank you for your interest doing business with us!

If you would like to get a discounted price for your large purchase orders, fill in the required blanks along with your email address, the product Item ID # and/or the link of the item that you want to order, item quantity (minimum of 30 pieces), shipping country and payment method is required. We will contact you with a discounted price as soon as we receive your inquiry.

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