On our service site you can find all information for a cooperation with us.

Become our customer

We appreciate your interest in our company and in our products and services. Please note that we are a wholesale and supply resellers only.

New customer registration

You can register as our customer as follows:

  • Create a customer account at our online shop.
  • Send an E-Mail or a Fax (05121-28938948) with your company details.

Besides your contact details we need your VAT identification number if applicable.

After your registration

After receiving all necessary data from you, we will contact you. Please note: Your customer account in our shop must be activated by us. Afterwards you can place your orders.

Customer care


We help you to find the best accessories for your customers. We answer you technical questions regarding our products. We give you comprehensive information on other topics about our range of goods. Our sales team is at your service during our business hours. We can provide you with competent advice - by phone or by mail.

Business hours

Our business hours are from mondays to fridays

  • 8:30 - 12:30
  • 13:00 - 16:30


We can provide you with assistance when it comes to selling our products. Feel free to contact us for

  • Product photos
  • Data sheets
  • Import files for your ERP
  • other documents and information about our products

Any complaints will be processed fast and straightforward from us. Please use our return form, which can be found in the download area of your customer account in our online shop.

Orders & Delivery


You can comfortably place your orders at our online shop. There you'll find our product prices as well as stock availabilities. Products not on stock are usually in transit and can be pre-ordered. You can also put products on a wishlist and get a notification automatically, as soon as the item is back in stock. In your customer account you can easily place larger orders with an CSV import function or with a quick order form.

Of course, we also take your orders by phone. You can reach us personally on workdays during our business hours:

  • 8:30 - 12:30 Uhr
  • 13:00 - 16:30 Uhr


We ship our goods within Germany and to countries of the European Union.

Shipping partners

We ship our parcels with DHL. If you want to be delivered with another carrier, please contact us.

For shipping costs please refer to our shipping cost table at our online shop.

Delivery times

If timely ordered products in stock will be handed over to our logistic partners for delivery. Usually the delivery will take place the next working day. Please note that delivery can be delayed due to external factors that are beyond the scope of our responsibility.

Customized solutions

With our assortment we already cover a broad range. Furthermore we help you to find customized solutions for your business. Due to our long-standing collaboration with reliable manufacturers we are able to fulfil your specific requirements. Please contact us, we are happy to give you further information.

We Do Your Brand!

We help you with the development of your own products and produce rechargeable batteries, chargers or other products with your branding on request.

  • Products with your brand!
  • Products manufactured for you exclusively!
  • Individual moulding possible!
  • We help you with the design!
  • We assist you to meet all legal requirements such as declarations of conformity!
  • Completion of the import and customs formalities!

We will happily provide you with detailed information. Please contact us!

Powerbank with individual logo
Powerbank with individual logo


We help you to produce your individual products according to your specifications:

  • Rechargeable batteries with your own label and logo
  • Your logo on other products like powerbanks or chargers
  • Custom-made products
  • hologram labels for high-grade product identification

Custom-made products can be:

  • rechargeable batteries, that are not part of our assortment
  • specific cables (even without plug for assembling)


We produce your individual packaging according to your preferences. This can be:

  • Packaging for various products
  • Different kinds of packaging: blister, cardboard etc.
  • Your individual packaging design
  • Your specific data on the packaging: brand logo,product description, table of content, legal notices
micro USB cable in sample packaging
micro USB cable in sample packaging

Our contribution to the environment

In times of global warming and peoples's growing environmental awareness corporate behaviour requires consideration of ecological aspects.

Onni-Tec GmbH follows all relevant guidelines regarding environmental protection. We are registered with German registry Stiftung elektro-eltgeräte register 'ear' (national register for waste electric equipment ) and the Stiftung Gemeinsames Rücknahmesystem Batterien 'GRS' (GRS Batterien Foundation).

WEEE Directive

The WEEE Directive (Directive on waste electrical an electronic eqiupment) stipulates the registration with the Stiftung ear for all manufacturers and importers in the Federal Republic of Germany.

The registration number of the Onni-Tec GmbH is DE 15939684. You can find our registration number on all our invoices.

Battery Disposal

We are registered as a battery manufacturer with the German Environment Agency (Umweltbundesamt - UBA). Our registration number is 21000648.

For disposal of batteries we cooperate with the Stiftung Gemeinsames Rücknahmesystem Batterien 'GRS'. There our registration number is 107081045. This cooperation ensures, that all legal requirements of the BattG (German battery law) regarding the proper disposal of our batteries are fulfilled.

RoHS Compliant

According to EU Directive electric and electronic devices and components must  not contain hazardous or persistent substances, such as heavy metal. Our products, provided that they underlie the RoHS directive, comply with the EU Directive on the restriction of the use of certain hazardous substances in electrical and electronic equipment  (RoHS).

REACH Regulation

The European Regulation (EC) No.1907/2006 called REACH regulation governs the registration, evaluation, authorization and restriction of chemical substances.

The company Onni-Tec GmbH is neither as an importer nor as a manufacturer affected by the registration obligations of the REACH regulation. Within the meaning of the regulation substances of our products are not intended to be released under normal or reasonably foreseeable conditions of use.

Under REACH batteries are considered as products and are subject to the German battery law (BattG), which governs notification obligation and disposal. Hence batteries are exempted from the provisions of the REACH regulation. In cooperation with our suppliers we check our products with the candidate list of SVHC substances and work permanently to keep our products free from substances of concern.

Please contact us for further information.

PAH Declaration

The European Regulation (EC) No. 1272/2013 regulates the concentration of polycyclic aromatic hydrocarbons (PAH) in products.

We made our suppliers and manufacturers aware of the PAH topic and instructed them to adhere to the regulation and to use alternative raw materials, where the PAH concentrations are well below the prescribed limits.

We will be happy to answer your questions and provide you with any additional information regarding PAH and our products.

Subscribe to our newsletter

Stay up-to-date with news regarding our products. Subscribe to our newsletter.

Please fill in your e-mail address and click on subscribe to register for our newsletter. After that you'll receive an e-mail with a confirmation link. Click on the link to confirm your subscription.

You can unsubscribe from our newsletter at any time. An according link is at the end of every newsletter.

Please calculate 8 plus 5.