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Providing Full Range Of High Quality Battery And Inverter.

Latest Solutions, And Professional Technology.

-Quality Control System

-100% Satisfaction Guarantee

-Highly Professional Staff

-Accurate Testing Processes

Explore HAKADI all in one system!
  • Battery & Inverter

    All-in one system for home energy storage filed.

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  • Assembled Battery Pack

    The complete battery pack built-in BMS

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  • HKD DIY Box Kits

    The best solution for installer and starter

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  • Custom Pack

    Providing one-stop design and production solutions

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Customized Solutions Fits Every Industry/Business Needs!

Our customized battery packs rely on excellent R&D capabilities and advanced production processes to ensure that customers are provided with efficient, reliable, and fully-suited power solutions. Whether it is special specifications or complex applications, we can tailor-make battery packs with excellent performance and long life for you to help your equipment always maintain the best condition.

Our Solution

FAQ

About Batteries

1. Are the batteries grade A brand new?

Yes. Grade A brand new batteries from original factory. There is a QR code in each battery. Each cells we will test before packing and shipping.

2. Are the batteries welded the screws, with busbars and buts?

Yes. We will weld the screws before shipping. One Battery will come with one set bus bar and nut. For example, 4pcs battery,we will send 4pcs cells with 4pcs busbars and 8pcs nuts. If need more and have other requestmments, please contact us online.

3. Are the batteries packed well?

Yes. Pack with strong package, each cell into thickness PE foam or bag, then into 5 layers strong carton. 

Gurantee and Delivery

1.Warranty

For lifepo4 battery cells, we provide 3 years warranty; 

For battery pack, we provide 5 years warranty;

Warranty start time:
Calculated from the time the customer signs for the goods
Warranty conditions:
The battery cannot be used due to quality problems, not caused by human factors. Please send pictures or video evidence and provide purchase records.

2. Delivery

From China Stock:

Ready goods: within 7 work days

Custom goods: less than 100pcs, within 7-15 work days. 100-500pcs, within 15-20 days; more than 500pcs, negotiable. Custom goods lead time depends on the quantities, processing technology... More details please contact us!

From Europe/USA/RU Stock:

Ready goods: within 48hours (no work in weekend)

Pre-sale goods: please check the lead time in product description.

3. Shipment Time:

By Sea: 50-60 days

By Train: 40-45 days

By Air: 12-20 days

Shipping time starts from the time the ship sails and takes off. Air transportation requires scheduling flights, which will extend the time. This depends on the flight situation.

Payment

1. What is PayPal?

PayPal is a secure and trustworthy payment processing service which allows you to shop online. PayPal can be used when purchase items by Credit Card (Visa, MasterCard, Discover, and American Express), Debit Card, or E-Check (i.e. using your regular Bank Account). We cannot see your card number as it is securely encrypted through PayPal's server. This limits the risk of unauthorized use and access.

2. After making a payment, can I change my billing or shipping information?

Once you have placed an order, you should not change your billing or shipping address information. If you want to make a change, please contact our Customer Service

Department as soon as possible during the order processing stage to indicate your request. If the package has not been dispatched yet, we will be able to ship to the new address. However, if the package has already been shipped, then the shipping information will not be able to be changed while the package is in transit.

3. How do I know if my payment has been received?

Once your payment has been received, we will send you a notification email to inform you about the order. You can also visit our store and log into your customer account to check the order status at any time. If we has received payment, the order status will show "Processing".

4. Do you provide an invoice?

Yes. Once we have received an order and payment has been cleared, the invoice will be sent to you via email.

5. Can I use other payment methods to pay for the order, such as a credit card or an offline payment method?

We accept credit card, PayPal, etc, as the payment methods.

1). Credit Card. 

including Visa, MasterCard, JCB, Discover and Diners.

2). PayPal. 

The most convenient payment method in the world.

3). Debit Card. 

including Visa, MasterCard, Visa Electron.

6.Why am I being asked to "Verify" my payment?

For your protection, your order is being processed by our payment verification team, this is a standard procedure to make sure all transactions made on our site are authorized and your future purchases will be processed in top priority.

After Sale

1. How can I cancel my order, before and after payment?

Cancellation before payment 

If you have not paid for your order yet, then there is no need for you to contact us to cancel it. We do not process orders until a matching payment has been received for the order. If your order is more than a week old and is still unpaid, you will not be able to "reactivate" it by sending a payment, because the prices of the individual items may have changed, along with the currency conversions and shipping rates. You will need to submit the order again with a new shopping cart.

Withdrawing an order after payment

If you have already paid for an order and want to cancel it, please contact our Customer Service Department as soon as possible.

If you are not sure about an issue relating to your order or you wish to change it, please contact our Customer Service Department and put the order on hold while you decide. This will suspend the packaging process while you make changes.

If the package has already been dispatched, then we are not able to cancel or change the order.

If you wish to cancel an existing order because you are ADDING other products, there is no need to cancel the entire order. Simply contact out Customer Service Department and we will process the updated order; there is usually no additional fee for this service.

Generally, if your order is in an early part of the processing stage, you may still be able to change or cancel it. You can ask for a refund or provide the payment as credit for future orders.

2. How can I return purchased items?

Before returning any items to us, please read and follow the instructions below. Please make sure that you understand our return policy and that you meet all the criteria. The first step is to contact our After Sales Service, please provide us with the following information:

a. The original order number

b. The reason for the exchange

c. Photographs clearly showing the problem with the item

d. Details of the requested replacement item: the item number, the name and color

e. Your shipping address and phone number

Please note that we are unable to process any returned items which have been sent back without our prior agreement. All returned items must have an RMA number. Once we have agreed to accept the returned item, please make sure you write a note in English containing your order number or PayPal ID so that we are able to locate your order information. 

The return or RMA process can only be initiated within 30 calendar days upon receipt of your items. We can only accept returned products that are in their original condition.

3. Under which circumstances would an item be able to be exchanged or returned?

We pride ourselves in the quality and fit of our clothes. All the Women's Clothing that we sell are designated as OSRM (Other Special Regulated Materials) and, once sold, cannot be returned or exchanged in cases other than quality issues or mis-shipment.

Quality Issues:

Should you find any item to be materially defective, the item must be returned to us in the same condition as it was sent within 30 calendar days after receiving the garment-it must be unwashed, unworn and with all the original tags affixed. Although we carefully check all merchandise for visible defects and damage prior to shipment, it is the buyer's responsibility to check the product upon its arrival to make sure it is free from any defects or problems. Damaged goods due to client negligence or items without their tags will not be accepted for refund.

Mis-shipment:

We will exchange your product in cases where the purchased product does not match the item ordered. For instance, it is not the color that you ordered (perceived color differences due to your computer monitor will not be exchanged), or the item you received does not match the style that you ordered.

Please note:

All returned and exchanged items must be returned within 30 calendar days. Returns and exchanges will only occur for eligible products. We reserve the right to refuse the return and exchange of any items that have been worn, damaged, or had the tags removed. If an item we receive has been worn, is damaged, has had its tags removed, or is deemed unacceptable for return and exchange, we reserve the right to return to you any non-compliant pieces. All product packaging must be intact and not damaged in any way. 

4. Where do I return the item?

After contacting our Customer Service Department and reaching mutual agreement, you will be able to send the item(s) to us. Once we have received the item(s), we will confirm the RMA information you have provided and review the condition of the item(s). If all of the relevant criteria have been met, we will process a refund if you have requested one; alternatively, if you have asked for an exchange instead, the replacement will be sent to you from our headquarters.