The Yideng 801435 3.7v 500mah li ion battery pack 1.48wh for Smart Door Lock is developed for smart security devices that require stable power supply and long standby performance. With a 3.7V rated voltage, 400mAh capacity, and 1.48Wh energy output, this rechargeable battery provides reliable backup power for smart door locks, electronic access systems, and intelligent security equipment.
Unlike batteries designed for high-frequency portable use, the 801435 battery focuses on low-power standby applications, helping smart locks maintain reliable operation during extended idle periods. Its low leakage current design helps reduce energy loss, improving standby efficiency and extending replacement intervals.
The compact 8.0 × 14.0 × 35.0mm pouch battery structure allows flexible installation inside space-limited security devices. Yideng supports customized battery solutions based on customer requirements, including terminal types, wire configuration, PCM protection, capacity adjustment, and product labeling.
From prototype testing to mass production, Yideng provides professional lithium battery manufacturing services for smart security and IoT device companies worldwide.
Nominal Voltage: 3.7V
Delivery Voltage: 3.85V ~ 4.05V
Nominal Capacity: 400mAh
Measurement: 8.1 × 14.1 × 35.5mm
| Item | Specification |
| Model | 801435 |
| Material | Li-ion Polymer Battery |
| Normal Capacity (0.2C) | 400mAh |
| Minimum Capacity (0.2C) | 400mAh |
| Energy | 1.48Wh |
| Normal Voltage | 3.7V |
| Delivery Voltage | 3.85V ~ 4.05V |
| Standard Charge Method | Charge at maximum current. When the battery or pack terminal voltage reaches the charging limit voltage, charge at constant voltage until the charging current is less than or equal to 0.02 C, then stop charging. |
| Discharge Program | The battery or the battery pack carries on the constant current discharge with the maximum discharge current to the discharge termination voltage. |
| Max Charging Current | 1C CC/CV → 0.02C cutoff |
| Max Discharging Current | 1C CC/CV → 3.0V cutoff |
| Over-Discharging Current | 3.0V |
| Operation Temperature Range |
Charging: 0°C ~ 50°C Discharging: -20°C ~ 60°C |
| Allowable Maximum Surface Temperature |
Charging: Tmax ≤ 50°C Discharging: Tmax ≤ 60°C |
| Storage T/H Range (time) |
-20°C ~ 60°C (Less than 1 month) -20°C ~ 45°C (Less than 3 months) -20°C ~ 25°C (Less than 1 year) |
| Cycle Life |
≥ 300 times (Thickness expansion rate ≤ 10%) ≥ 500 times (Thickness expansion rate ≤ 12%) |
801435 3.7v 500mah li ion battery pack 1.48wh for Smart Door Lock
1. Low leakage current
2. Lightweight construction
3. Customizable dimensions and Pack
4. Over-discharge protected
Our polymer battery suitable for high-strength protection board, voltage output is stable and supports current (protection board is used according to battery output) to prevent overcharge, overdischarge, and short circuit.
Our polymer battery use high-quality silicone wire, strong flexibility, not easy to break, can support high probability discharge. Connectors can be customized.
Can be customized according to requirements
We own independent invention patents covering high-efficiency lithium battery gluing equipment, coating production systems, gel electrolyte high-temperature mixers and automatic sealing machines for TWS cells to guarantee stable product quality and advanced manufacturing capacity.
1. One-Year Warranty Commitment
All polymer lithium battery products are covered by a 12-month warranty from the date of shipment. Any product failure caused by manufacturing defects during the warranty period will be replaced free of charge.
2. Prompt Response & Replacement
Upon receiving a customer complaint, our after-sales team will respond within 24 hours. Once the issue is confirmed as a valid warranty claim, a replacement unit of the same specification will be arranged immediately to minimize disruption to the customer's production schedule.
3. Defective Unit Testing & Analysis
Returned battery samples will be tested at our in-house laboratory within 7 working days of receipt. A formal test report will be issued upon completion, detailing the testing procedures and conclusions.
4. 8D Corrective Action Report
For every customer complaint, our quality department conducts a root cause investigation following the standard 8D (Eight Disciplines) methodology, including interim containment, permanent corrective actions, and effectiveness verification. A complete 8D report will be prepared and submitted to the customer for record-keeping.
5. Exclusions from Warranty Coverage
The free replacement policy does not apply to failures resulting from improper usage, unauthorized disassembly or modification, mismatched external devices, or operation beyond the parameters specified in the product datasheet. For such cases, paid repair services or technical guidance can be arranged upon request.
6. Ongoing Technical Support
Even after the warranty period expires, we continue to provide technical consultation and after-sales assistance. Customers are welcome to reach out to our sales representatives or engineering team for support at any time.
A1: The 801435 rechargeable lithium polymer battery is mainly designed for:
- Smart door locks
- Electronic access control systems
- Security devices
- Backup power modules
- Smart home equipment
- IoT security products
Its stable output and long standby characteristics make it suitable for low-power intelligent devices.
A2: Smart door locks require batteries that can maintain power during long standby periods and provide stable energy when the motor mechanism operates.
The 801435 battery offers:
- Stable 3.7V voltage output
- Low self-discharge performance
- Reliable standby power supply
- Compact installation size
- Consistent discharge performance
Helping improve the reliability of smart security systems.
A3: Yes. Yideng provides OEM/ODM customization services, including:
- Battery capacity adjustment
- Terminal customization
- Wire length and connector selection
- PCM protection design
- Label and packaging customization
We support customized battery development from samples to mass production.
A4: The 801435 battery supports international safety and transportation certifications including:
- CE
- UN38.3
- RoHS
Additional certifications can be provided according to customer application requirements.
A5: Yideng applies strict quality control throughout the battery manufacturing process, including:
- Raw material inspection
- Cell performance testing
- Capacity testing
- Voltage consistency testing
- Internal resistance inspection
- Safety performance verification
A MES digital production management system ensures production traceability and stable batch quality.
A6: Yes. The 801435 battery is optimized for low-power applications with low leakage characteristics, making it suitable for devices requiring extended standby operation such as smart locks and security systems.
A7: Yideng operates intelligent manufacturing facilities in Hunan and Guangdong with:
- Daily production capacity up to 1 million cells
- 85% automated production lines
- Professional R&D and engineering teams
We support both prototype projects and large-volume OEM battery orders.
A8: Yideng combines lithium battery R&D, intelligent manufacturing, quality management, and customization capability to provide reliable power solutions for smart home and security device manufacturers.
With professional OEM experience and global service support, Yideng helps customers develop safe and efficient battery solutions.
Address
Xin'an Village industrial Park, Yonglejiang Town, AnrenCounty, Chenzhou City, Hunan Province, China
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