36v battery for electric bike 500w made in china

Working Procedures & QC

a) Weld

Use the thickened frame tube wall according to the international safety standards.

b) Paintinging

Adopting static equipment imported from Japan to bake paint, professional control of the paint

temperature and Gun to ensure the painting being bright and elegant.

c) Professional design logo

Helen Bike has a professional design team, as long as one of your requests, we will design a 

unique logo for you, welcome OEM and ODM!

d) Assembling

Excellent Quality from Japan, Helen Bike bring in Japanese Quality control system import international 

production line with four quality inspection, effectively ensure the effectiveness of every process.

Why choose us?

a) WARRANTY

0.3% vulnerable parts including chain, pedal, saddle and inner tubes.

Quality guarantee period:

1 years for whole electric bike  

b) OUR ADVANGES

Prefessional engineer for designing

Specialized technician for assembling

Experienced sales for serving

c)SAMPLES

1. Sample free of charge;

2. Fastly making the sample;

3. Good price and high quality;

4. Delivery on time.

FAQ

Q1. What is your terms of packing?

A: Generally, we pack our goods in neutral white boxes and brown cartons. If you have legally registered patent,

we can pack the goods in your branded boxes after getting your authorization letters.

Q2. What is your terms of payment?

A: T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages

before you pay the balance.

Q3.Can I mix different models in one container?

A: Yes, different models can be mixed in one container.

Q4.Do you have the e-bikes in stock?

A: No, to keep the quality, all e-bikes will be newly produced against you order, including the samples.

Q5. Can you produce according to the samples?

A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.

Q6. What is your sample policy?

A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and

the courier cost.

Q7. Do you test all your goods before delivery?

A: Yes, we have 100% test before delivery

Q8: How do you make our business long-term and good relationship?

A:1. We keep good quality and competitive price to ensure our customers benefit ;

2. We respect every customer as our friend and we sincerely do business and make friends with them,

no matter where they come from.

If any demand, please contact us as follow: