Zhejiang Daou Electronics Co.,ltd.

Zhejiang Daou Electronics Co.,ltd. whatsapp:zhoujialu6688
TEL:+86 13645876878
Email:[email protected]

CNDO develops and produces auto accessories:wire harness and battery terminals, fuse boxes, connectors, waterproof plugs,connectors for electric vehicle battery packs etc.

11/08/2026

Production process for automotive connector terminals⚙️
From stamping‑forming to precision finishing.
Every terminal is strictly manufactured to meet IATF16949 automotive‑grade standard.
Reliable conductivity & stable performance for your auto‑connection solutions.

11/08/2026

Every product undergoes strict‑quality inspection in our testing workshop.
Every detail is carefully checked by our experienced staff.
We stick to rigorous standards, deliver reliable automotive & electronic connectors for all clients.
Quality is our top priority ✅

Under the Hood: What Makes a Wire Harness Connection LastEver opened a car hood and noticed a battery terminal covered i...
08/08/2026

Under the Hood: What Makes a Wire Harness Connection Last

Ever opened a car hood and noticed a battery terminal covered in white corrosion? That small connection point is one of the most common weak spots in a vehicle's electrical system.

Think about the cable running from the battery to the fuse box. Every start-up sends current through that route, while the engine bay adds heat, vibration, and moisture. If a terminal, connector, or housing isn't up to the job, the result is usually an intermittent fault or a no-start condition.

Zhejiang Daou Electronics Co., Ltd., known as CNDO, is a manufacturer based in Zhejiang, China, focused on the R&D of auto wire harness and battery terminals, fuse boxes, connectors, waterproof plugs, and connectors for electric vehicle battery packs. The company provides OEM and main unit supply solutions, and its parts are used in passenger cars, commercial vehicles, and new energy vehicles. CNDO operates a 6,000 m² facility with an annual production capacity of 9,000,000 units, and export business accounts for about half of its sales, with major markets in the USA and EU.

Let's look at a few components that often appear in the same harness. They are different parts, but they work together in one battery-to-harness path.

The DOBP22001 is a battery terminal for 12V automotive systems. It is an SAE top-post type made of brass, with a 19.05 mm positive post diameter. For the negative side, CNDO also makes the DOBN22006-D5 EV high-voltage battery connector, which has a tin-plated finish, an M8 thread, a 17.46 mm negative post diameter, and a maximum current rating of 500 A.

Near the battery, the DOBXS4-1A and DOBXS5-1F battery fuse boxes handle circuit protection. They work at 12V or 24V DC and use a bolt-type mega fuse with auxiliary blade fuses from 5A to 30A. Their housings use flame-retardant plastic with a sealed cover, and the design is waterproof and dustproof.

Further along the harness, the DOH0001-1 housing offers an IP67 protection level and is waterproof, dustproof, oil-resistant, and resistant to acid and alkali. It has an operating temperature range of -40°C to +125°C and complies with IATF16949 standards. The D520023 three-way conduit connector is another useful piece for engine bay, chassis, and body wiring. Made of PA66, it reaches IP66/IP67 when sealing gaskets are used, and resists engine oil, mineral oil, grease, weak acids, weak alkalis, and ageing.

CNDO's parts are designed around real working conditions: wide temperature ranges, vibration, and exposure to fluids. That is why its wire harness components are built with materials such as brass, copper alloys, PA66, and PA/PBT, with tin or nickel plating options where needed.

If you are sourcing automotive wire harness components for a vehicle project, starting with the parts that carry power is a practical first step. CNDO supports OEM and custom supply requests from a single terminal to a complete connection set.

Have you ever had a battery terminal, fuse box, or connector fail on a vehicle? What was the first symptom?

Zhejiang Daou Electronics Co., Ltd. (CNDO)
Email: [email protected]
WhatsApp: +86 13645876878
Web:www.zjdaou.com

08/08/2026

Today we take you inside our factory.
Real‑time workshop footage showing our production progress.
We specialize in automotive connectors, battery terminals and fuse boxes.
Strict quality control & stable lead time for global customers.
Welcome OEM & ODM inquiries, feel free to send us your requirements.

Built for the Long Haul: Connector Supply with CNDOChoosing a supplier is not just about one order. It’s about who you c...
05/08/2026

Built for the Long Haul: Connector Supply with CNDO

Choosing a supplier is not just about one order. It’s about who you can rely on after launch, through ramps, design changes, and years in the field.

Zhejiang Daou Electronics Co., Ltd. (CNDO) is an automotive electrical component manufacturer based in Yueqing, Zhejiang, China. The company focuses on auto wire harness and battery terminals, fuse boxes, connectors, waterproof plugs, and connectors for electric vehicle battery packs. CNDO supports OEM and main unit supply solutions, which means the same engineering used for vehicle programs can support your next connector project.

Take a common scenario. You’re developing a battery wiring harness for a fuel or commercial vehicle. You need automotive wire harness connectors and battery terminals that can carry current, resist vibration, and keep out moisture. CNDO’s battery terminal series (models DOBP22001 and DOBN22006-D5) uses brass construction with tin plating, an SAE top post design, and is rated for 500A max current. For distribution, the DOBXS4-1A and DOBXS5-1F battery fuse boxes support 12V/24V systems and operate from -40°C to +125°C. For electrified product lines, CNDO also develops connectors for new energy vehicle battery packs.

Long-term reliability also comes from risk control. CNDO’s connector design includes thermal resistance protection, IP67 waterproof sealing, anti-vibration locking, high-voltage reinforced insulation, and anti-corrosion tin plating. These measures address common failure modes such as overheating, poor contact, water ingress, vibration loosening, insulation breakdown, and corrosion. On the production side, IATF16949 full-process quality inspection, raw material incoming testing, temperature and vibration aging tests, and 100% finished product electrical performance testing support consistent output.

What makes a supplier relationship last? In-house capability. CNDO has its own R&D and production covering mold development, precision manufacturing, and finished product inspection, with an R&D team of 25 engineers. The company also lists partnerships with automakers including Chery Group, Foton Motor, LOVOL, Wuling, FAW Group, Changan Group, GAC Group, Geely Group, and BAIC Group, plus wiring harness manufacturers including Luxshare Precision, Aptiv, and Sumitomo Electric. Being part of those supply chains reflects experience in delivery, quality, and communication.

For buyers evaluating connector suppliers, the practical question is simple: can the factory handle custom specs without losing automotive-grade quality? CNDO’s full-chain model is designed to do both—customize tooling in-house and maintain IATF16949 standards.

Have you worked with a connector supplier for several years? What made that partnership work? Tell us below.

For inquiries, contact Vicky: [email protected] / WhatsApp +86 13645876878. More at www.zjdaou.com.

Connector Fit for Real Vehicle ProjectsEver spec'd a connector for a vehicle project and found later it doesn't match th...
02/08/2026

Connector Fit for Real Vehicle Projects

Ever spec'd a connector for a vehicle project and found later it doesn't match the battery terminal or fuse box? That's a common headache in wiring work.

For passenger car assembly, the connection between the battery, fuse box, and wiring harness has to handle heat, vibration, moisture, and stop-start cycling. That's exactly the scenario CNDO Automotive Connector plans for.

CNDO Automotive Connector, from Zhejiang Daou Electronics Co., Ltd., makes automotive wire harness connectors and related parts—battery terminals, fuse boxes, terminals, housings, and conduit connectors—for automotive manufacturing, new energy vehicle production, and wiring harness processing.

Why it fits: the battery terminal models DOBP22001 and DOBN22006-D5 are SAE top post types for 12V systems. They're brass with tin plating, use M8 thread, and handle up to 500A. Positive post diameter is 19.05mm, negative 17.46mm, both tapered. That's the kind of spec you need when matching a battery wire harness to a vehicle battery terminal.

Then there's the matching battery fuse box, DOBXS4-1A and DOBXS5-1F. It runs on 12V/24V DC and takes a bolt-type mega fuse, with optional blade fuses from 5A to 30A. The flame-retardant sealed cover keeps dust and water out, and the working range is -40°C to +125°C, so it can live near the battery positive terminal.

For the rest of the harness, CNDO's housing model DOH0001-1 is rated IP67 and is waterproof, dustproof, oil-resistant, and built to IATF16949 standards. The terminal model DOE24022 covers 12V/24V DC and from 5A up to 200A depending on size, in pure copper or copper alloy. Sealed connectors in this family reach IP67/IP6K9K protection.

This matters for project fit. The product family is designed for operating temperatures from -40°C to +125°C, meets ISO 16750 and USCAR-2 vibration standards, and common special requirements include IATF16949 certification, flame retardance, vibration resistance, and RoHS compliance. Unsealed versions work in dry interiors; sealed versions are meant for wet or exposed areas.

CNDO is also a recognized designated supplier for major vehicle OEMs and wiring harness manufacturers, and offers OEM customization—housing color, logo printing, current rating, wire gauge matching, waterproof grade, pin count, and EV high-voltage insulation structure. Monthly capacity is 750,000 units with a typical lead time of 7-15 days.

If you're evaluating connectors for a specific vehicle program, the short version is: match the terminal, fuse box, and housing to the environment, not just the pin count.

What's the toughest connection point in your current vehicle wiring project?

For drawings or samples, contact Vicky at [email protected] or WhatsApp +86 13645876878. Website: www.zjdaou.com

CNDO Connectors: 60% Longer Life, 20% Lower CostEver had an automotive connector fail due to vibration or water ingress?...
30/07/2026

CNDO Connectors: 60% Longer Life, 20% Lower Cost

Ever had an automotive connector fail due to vibration or water ingress? That leads to downtime, repairs, and headaches. If you're sourcing wire harness connectors for passenger cars, commercial vehicles, or EV battery packs, making the right choice matters for both performance and budget.

Let's talk about CNDO. CNDO is a brand of Zhejiang Daou Electronics Co., Ltd., a manufacturer focused on automotive wire harness connectors, battery terminals, and fuse boxes. Their connectors are built for demanding conditions.

Compared to traditional automotive wire harness connectors, CNDO products deliver:

⭐ 60% longer service life
⭐ 3 levels higher vibration resistance
⭐ IP67 waterproof performance (vs. IP54 for typical connectors)
⭐ 10% to 20% lower cost

That's right – better protection, longer durability, and cost savings for OEMs and wiring harness manufacturers. CNDO connectors meet IATF16949 automotive grade standards and support OEM supply for top domestic automakers. They also offer lower custom MOQs, so even smaller runs can get high-quality solutions.

How does this translate to real use? In fuel passenger vehicles, commercial trucks, and new energy vehicle battery packs, stable conductivity reduces power loss, while the anti-vibration design keeps connections tight. The result? Less maintenance and fewer replacements.

CNDO backs all this with rigorous quality control: raw material incoming tests, temperature and vibration aging tests, and 100% finished product electrical performance tests.

So whether you're a vehicle OEM or a wiring harness manufacturer looking to cut costs without sacrificing quality, CNDO gives you a proven alternative.

Have you compared connector specs recently? What's the biggest challenge you face in connector selection? Drop a comment below or reach out to CNDO for more info.

One Connector Family for Multiple Rigs 🔌You’re in the middle of sourcing wire harness connectors for a new project—maybe...
27/07/2026

One Connector Family for Multiple Rigs 🔌

You’re in the middle of sourcing wire harness connectors for a new project—maybe an electric vehicle battery pack, a commercial truck, or even a smart home appliance. And suddenly you realize: the same supplier that handles your automotive battery terminals might also cover your garden tools. Sound familiar?

That’s the reality at CNDO, a Chinese manufacturer specializing in automotive wire harness connectors, battery terminals, fuse boxes, and more. With over 20 years of R&D and a 6,000㎡ factory housing 125 employees, CNDO produces about 750,000 units every month. Their IATF 16949:2016 certification (cert #0596976) covers the design and manufacture of electronic connectors and wire harnesses, meaning you’re not sacrificing quality when you expand your product range.

Here’s what they cover:
🔹 Automotive battery positive/negative terminals (SAE top post, brass, 500A max)
🔹 Vehicle fuse boxes (12V/24V, waterproof, -40°C ~ +125°C)
🔹 High-voltage connectors for EV battery packs and energy storage equipment
🔹 Motorcycle complete vehicle wire harness connectors & battery terminals
🔹 Waterproof connectors for garden tools, lawn mowers, and power tool fuse boxes
🔹 Special connectors for small home appliances (smart electronics, kitchen gadgets)

CNDO also offers OEM customization—housing color, logo, terminal specs, wire gauge, waterproof grade, even high-voltage insulation structure. And they’ve been a designated supplier to major automotive OEMs and wiring harness factories (including partners like Chery, Foton, Wuling, and global tier-1s like Luxshare Precision and Aptiv). One success case in China ran for 8 years with 20 units deployed.

Their export markets cover the United States and European Union, and after-sales includes remote technical guidance, spare parts, and factory audit coordination.

So if you’re evaluating a connector partner that can handle both your existing automotive line AND your new energy or small-appliance projects, CNDO might be worth a closer look.

🗣️ What’s the most unusual application you’ve ever needed a wire harness connector for? Drop it in the comments—we’d love to hear!

OEM? Custom Connectors? CNDO Handles It AllEver struggled to find a connector that fits your exact specs—not just the st...
24/07/2026

OEM? Custom Connectors? CNDO Handles It All

Ever struggled to find a connector that fits your exact specs—not just the standard ones? We hear you.

Whether you're designing a wiring harness for an electric vehicle battery pack, a commercial truck fuse box, or even a smart home appliance, getting the terminal, waterproof grade, and pin count exactly right makes all the difference.

That's where CNDO comes in. CNDO specializes in OEM production for automotive wire harness connectors, battery terminals, fuse boxes, and more. We've been supplying tier‑1 automakers and wire harness manufacturers for over 8 years, and our IATF16949‑certified facility gives you confidence in quality from day one.

What sets us apart? Real flexibility. We can customize housing color, logo printing, current rating, wire gauge, waterproof protection, pin count, and even high‑voltage insulation structures for EV packs. Need a small run? Our MOQ starts from just 2 units. Tight deadline? We ship in 7–15 days.

From automotive battery terminals (SAE top post, 500A) to motorcycle connectors, garden tool waterproof connectors, and energy storage battery harness assemblies—CNDO has the capacity and experience to match your project.

Ready to move from concept to production? Let's talk about your next connector project. Drop a comment or message us directly.

Reliable Automotive Battery Terminals? CNDO Has You CoveredEver had a car that wouldn't start because of a loose or corr...
16/07/2026

Reliable Automotive Battery Terminals? CNDO Has You Covered

Ever had a car that wouldn't start because of a loose or corroded battery terminal? It's one of the most common electrical issues, and it often comes down to the quality of the connection.

Whether you're a mechanic, a fleet manager, or a DIYer, you know the frustration of a poor contact. The terminal needs to handle the current demands of a 12V automotive system, resist corrosion, and stay tight under vibration.

That's where a properly designed battery terminal makes a difference. CNDO (Zhejiang Daou Electronics Co., Ltd.) develops brass SAE Top Post battery terminals (model DOBP22001) with a positive post diameter of 19.05 mm. They are tin‑plated for corrosion resistance and rated for 12V systems.

CNDO also provides matching battery fuse boxes (models DOBXS4‑1A / DOBXS5‑1F) and wire harness connectors like the three‑way tube conduit connector D520023, which offers IP67 protection (with sealing gaskets) and resists engine oil, coolant, and UV. This means you can source your main connection points from one supplier with consistent quality.

Using reliable components from a single source reduces compatibility issues and downtime. CNDO’s products are built for demanding automotive underhood environments, operating from -40°C to +125°C.

Have you ever struggled with battery terminal issues? What's the most common problem you deal with? Drop a comment below!

Download our full product brochure:https://cdn.socialarks.com/sbsp/25037/common/2026/0706/%E6%B5%99%E6%B1%9F%E5%A4%A7%E6%AC%A7%E7%94%B5%E5%AD%90%E6%9C%89%E9%99%90%E5%85%AC%E5%8F%B8%EF%BC%88%E8%8B%B1%E6%96%87%EF%BC%89.pdf

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Yueqing, Wenzhou
Zhejiang
86-0577-325609

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