Battery-Free Wireless Doorbell Solution——KKPCB Energy Harvesting Technology Case Study
I. Innovation Background
Market Pain Points
- Battery Dependency: 78% of wireless doorbell failures caused by battery issues (Consumer Reports 2023)
- Installation Limitations: Wired solutions require complex retrofitting
- Range Reliability: Typical products fail beyond 30m/2 walls

Technology Breakthrough
KKPCB’s kinetic energy harvesting solution achieves:
- Zero Battery Operation: 200,000+ press cycles durability
- Instant Power Generation: 3ms energy conversion latency
- Industrial-Grade RF Performance: Compared to consumer solutions
Parameter | Market Average | KKPCB Solution |
---|---|---|
Activation Force | 5N | 3.2N |
Energy Output per Press | 12mJ | 18mJ |
Transmission Distance | 30m/2 walls | 50m/3 walls |
II. Core Technology Implementation
1. Energy Harvesting Module
- Piezoelectric Transducer
- Converts 3mm mechanical displacement to 3.3V/5mA pulse
- 85% energy conversion efficiency
- Power Management ASIC
- Ultra-low 0.8μA quiescent current
- 10ms capacitor charging time
2. RF Communication System

Kinetic Press
Energy Harvesting
TX361E Transmitter
433MHz @10dBm
RX306E Receiver
- Key RF Specs:
- 40Kbps Manchester-encoded transmission
- -105dBm sensitivity (15dB better than FCC Pt.15 req.)
III. Client Deployment Cases
A. Smart Apartment Project (5,000 Units)
- Results:
- 100% elimination of battery replacement calls
- 60% lower installation cost vs wired systems
B. Hotel Retrofit Application
- Implemented 800 doorbells across 12 floors
- Achieved 99.97% packet reception rate
IV. KKPCB Value Proposition
- Plug-and-Play Modules
- TX361E/RX306E pre-certified for:
- FCC ID: 2AKHZ-TX361E
- CE RED: 2024LP-0987
- TX361E/RX306E pre-certified for:
- Customization Services
- Frequency adjustment (315/868/915MHz available)
- Mechanical integration support
- Cost Advantages
- 40% lower TCO than battery-powered alternatives
- No RF royalty fees
Case ID: KKPCB-RF-2024-07
Contact: [email protected]

*”KKPCB’s battery-free technology solved our maintenance nightmare in high-rise buildings. The 50m range through concrete walls was a game-changer.”*
— Property Technology Manager
Market Potential:
With 120M annual doorbell shipments globally (ABI Research 2024), this solution addresses:
- Sustainable building certifications (LEED/WELL)
- Rental property management
- Healthcare facility silent calling systems
Kikma
May 8, 2025Shenzhen KKPCB Technology Co., Ltd. seems to be a highly specialized and reliable company in the PCB and PCBA manufacturing industry. Their focus on high-difficulty, small to medium batch production is impressive, especially with their commitment to high precision and fast turnaround times. The fact that they offer a one-stop solution for electronic manufacturing, including layout, assembly, testing, and verification, makes them a convenient choice for complex projects. Their expertise in High Reliability Flex, Rigid-Flex, RF-Microwave, HDI, and Rigid circuit boards is noteworthy and likely sets them apart from competitors. I appreciate their emphasis on in-house solutions, which probably ensures better quality control and efficiency. The mention of the TX361E Transmitter and RX306E Receiver suggests they are also involved in energy harvesting and RF technologies, which is quite fascinating. Could you elaborate on how KKPCB ensures the high reliability of their products, especially in such specialized and demanding applications?
One-stop PCB Manufacturing and PCB Assembly solutions Manufacturer
May 26, 2025Thank you for your detailed observation! KKPCB ensures high reliability in specialized and demanding applications through strict adherence to industry standards like IPC-A-610 Class 2 and 3, comprehensive in-house quality controls including AOI and X-ray inspections, and a skilled engineering team that rigorously tests and verifies each design. Their integrated approach—from precise layout and controlled manufacturing environments to real-time MES production tracking—allows them to consistently deliver durable, high-performance PCBs, even for advanced technologies like energy harvesting and RF systems.
Entertainment
May 9, 2025Your services sound impressive, especially the focus on high-difficulty and small to medium batch production. It’s great to see a company committed to high-precision and fast turnaround times. I’m curious about how you manage to maintain such reliability with complex designs. The all-in-house solution approach is a huge advantage—do you think it gives you an edge over competitors? I’d love to know more about your process for ensuring high-reliability in RF-Microwave and HDI boards. How do you handle custom technical requirements for niche projects? Your expertise seems unmatched, but I wonder, what sets KKPCB apart in terms of innovation compared to other industry leaders?
One-stop PCB Manufacturing and PCB Assembly solutions Manufacturer
May 26, 2025Thank you for your kind words! At KKPCB, our all-in-house approach—from design and prototyping to manufacturing and testing—allows us to maintain strict quality control and rapid response times, giving us a clear competitive edge. For high-reliability RF-Microwave and HDI boards, we implement advanced materials, precise process controls, and rigorous inspections like AOI and X-ray to ensure optimal performance and durability. Handling custom technical requirements involves close collaboration with clients and tailored engineering solutions to meet even the most niche demands. What truly sets KKPCB apart is our continuous investment in innovation, combining cutting-edge technologies with a flexible, customer-focused mindset to deliver solutions that exceed industry standards.