12V DC solar battery motor with 20Nm torque, 10rpm speed, built-in rechargeable battery configuration, and solar panel charging support for roller shutters and roller blinds.
The WM45DS-20/10 is designed for roller shutter and roller blind projects where AC wiring is difficult or not preferred. It combines a 45mm motor structure, built-in rechargeable battery configuration, solar panel charging support, and 20Nm output torque for medium shading systems.
Side-view WM45DS-20/10 motor image for B2B technical evaluation.
20Nm Built-in Battery Motor for Solar Shading Systems
The WM45DS-20/10 Solar Battery Motor is a 12V DC drive solution for roller shutters, roller blinds, and similar sun-shading systems. With built-in rechargeable battery configuration and solar panel charging compatibility, it helps reduce wiring work and supports flexible installation in retrofit, facade, and solar shading projects.
The 20Nm torque and 10rpm speed make it suitable for medium roller shutter and blind applications where a stronger 45mm motor class is required. The motor can be charged by a compatible solar panel or by an optional 12.6V DC 3.5A charger when additional charging is required.
Why Choose WM45DS-20/10?
20Nm Output Torque
Designed for medium roller shutters, roller blinds, and sun-shading systems requiring stronger lifting performance than smaller 35mm battery motors.
Built-in Rechargeable Battery
Integrated battery design helps reduce external wiring and supports cleaner installation for retrofit window covering projects.
1 or 2 Battery Packs Optional
Available with one battery pack or two battery packs according to project requirements, operating frequency, and expected charging conditions.
Solar Charging Compatible
Can be paired with a compatible solar panel to support battery charging for roller shutter and roller blind applications.
12V DC Low-Voltage Design
Suitable for low-voltage shading systems and solar-powered window covering projects.
OEM Supply from Walter Motor
Manufactured by Zhejiang Walter Mech Electrical Co., Ltd., supporting OEM projects, private label supply, technical communication, and batch production.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | WM45DS-20/10 |
| Product Name | Solar Battery Motor |
| Motor Type | DC battery motor |
| Technical Type | 45mm tubular motor |
| Rated Torque | 20Nm |
| Rated Speed | 10rpm |
| Rated Voltage | 12V DC |
| Rated Current | 4.5A |
| Rated Power | 55W |
| Battery Type | Built-in rechargeable battery |
| Battery Capacity | 2600mAh per battery pack |
| Battery Configuration | 1 battery pack or 2 battery packs optional |
| Charging Method | Solar panel charging compatible |
| Optional Charger | 12.6V DC, 3.5A |
| IP Rating | IP44 |
| Control | Wireless remote control compatible |
| Motor Travel / Limit | Adjustable upper and lower travel limits |
| Application | Roller shutters, roller blinds, solar shading systems |
| Packaging | Individual box and master carton |
Technical data may be adjusted according to project requirements. Please contact Walter Motor for confirmed specifications before bulk orders.
Flexible Battery Configuration for Different Projects
The WM45DS-20/10 can be supplied with one battery pack or two battery packs depending on project requirements. For standard applications, one built-in 2600mAh battery pack supports compact installation. For projects with higher usage frequency or longer charging intervals, a two-battery-pack configuration can be discussed.
1 Battery Pack
- Built-in 2600mAh battery pack
- Suitable for standard daily use
- Compact system design
- Recommended when motor operation frequency is moderate
2 Battery Packs Optional
- Optional two-pack configuration
- Suitable for projects requiring longer battery reserve
- Recommended for higher usage frequency or limited sunlight conditions
- Final configuration should be confirmed according to project conditions
Actual operating time depends on shutter size, load, friction, battery condition, solar charging condition, and daily usage.
Solar Charging for Easier Retrofit Installation
For projects where AC power wiring is difficult, the WM45DS-20/10 can be connected with a compatible solar panel to charge the built-in battery. This helps reduce installation work and makes the motor suitable for retrofit roller shutter, roller blind, and solar shading projects.
Panel Position
Install the solar panel in a position with good sunlight exposure.
Clean Surface
Keep the solar panel clean for stable charging performance.
Avoid Long Shading
Avoid long-term shading from walls, eaves, trees, leaves, or snow.
Use Optional Charger
Use the optional 12.6V DC 3.5A charger when additional charging is required before installation or during long periods of low sunlight.
Solar charging performance depends on sunlight condition, panel position, installation environment, battery configuration, and daily motor usage.
Adjustable Motor Travel for Roller Shutter and Blind Operation
The WM45DS-20/10 supports adjustable upper and lower travel limits, allowing the motor movement range to be set according to the actual shutter or blind position. Correct travel limit setting helps protect the system, improve daily operation, and reduce unnecessary stress on the curtain, tube, and guides.
Upper Position
Upper travel position can be set according to the fully open position.
Lower Position
Lower travel position can be set according to the fully closed position.
Smooth Movement First
Travel setting should be completed after confirming smooth curtain movement.
Follow Technical Guidance
Final setting should follow the official installation manual or Walter Motor technical guidance.
Recommended Applications
Solar Roller Shutters
For residential or light commercial roller shutter systems where wiring work should be reduced.
Battery Powered Roller Blinds
For blind systems requiring a 45mm DC motor with stronger torque than compact 35mm models.
Retrofit Window Covering Systems
For renovation projects where adding AC power cables is inconvenient, costly, or not preferred.
Low-Voltage Solar Shading Projects
For solar shading systems requiring 12V DC motor integration and optional battery configuration.
The WM45DS-20/10 is suitable for projects that require 20Nm torque, reduced wiring work, and solar charging support. Final selection should always consider curtain weight, tube size, friction, guide condition, installation space, and expected daily operating cycles.
Designed for Practical Roller Shutter and Blind Installation
Installation Notes
- Confirm shutter or blind weight before motor selection.
- Make sure the guide rails and moving parts operate smoothly.
- Confirm tube diameter, crown, drive adapter, bracket, and end cap compatibility.
- Avoid drilling into the motor body.
- Protect the motor from impact, crushing, or liquid contact.
- Ensure the solar panel cable and motor cable do not contact moving parts.
- Charge the battery before installation if the motor has been stored for a long time.
- Set motor travel limits only after mechanical installation is correctly completed.
Packaging Information
| Package | Size | Quantity |
|---|---|---|
| Individual Box | 810 × 80 × 80 mm | 1 pc per individual box |
| Master Carton | 830 × 435 × 180 mm | 10 pcs per carton |
Standard export packaging is available for OEM and batch orders. Product label, private label, user manual, test report file name, and carton marking can be discussed according to customer requirements.
Quality, Documentation and Test Report Download
WM45DS-20/10 is supplied by Zhejiang Walter Mech Electrical Co., Ltd. Product test documentation is available for international B2B customers. Walter Motor supports buyers with technical communication, product documentation, OEM cooperation, and batch production.
Product Test Report Available
Product test report available for project review and B2B customer documentation.
CE Safety Test Report Download
CE safety test report available for download. This file is provided as a test report, not as a formal CE certificate.
EN Test Documentation
Tested according to EN IEC 60335-2-97, EN 60335-1, and EN 62233.
OEM and Private Label Support
OEM labels, user manuals, carton marking, and supporting documents can be discussed by project.
Download WM45DS Test Report
Downloadable document: WM45DS-20-10-Solar-Battery-Motor-CE-Safety-Test-Report.pdf. Compliance documentation is available upon request and should be confirmed by exact model, configuration, and destination market.
Download WM45DS Test ReportWhen Should You Choose a 20Nm Solar Battery Motor?
Choose WM45DS-20/10 when:
- AC wiring is difficult or not preferred.
- The project requires a stronger 45mm motor class.
- The roller shutter or blind needs around 20Nm motor output.
- Solar panel charging is preferred for daily battery support.
- The project is for retrofit window covering installation.
- One or two battery packs are required according to operating conditions.
Consider a wired AC motor when:
- Continuous power supply is already available.
- The shutter is very large or heavy.
- The application requires higher torque.
- The project has high daily operating frequency.
- Solar charging conditions are poor or unstable.
Compare this model with the 35mm and 45mm tubular motor range, roller shutter motor solutions, roller blind motor options, and compatible solar panel accessories when building a complete solar shading system.
FAQ
What is the main advantage of WM45DS-20/10?
It combines a 12V DC motor, built-in rechargeable battery configuration, 20Nm torque, and solar panel charging compatibility, making it suitable for roller shutter and roller blind projects where wiring work should be reduced.
Can the WM45DS-20/10 be charged by solar panel?
Yes. It can be connected with a compatible solar panel to charge the built-in battery. Charging performance depends on sunlight condition, panel position, battery configuration, and daily usage.
Can it also be charged by charger?
Yes. An optional 12.6V DC 3.5A charger can be used when additional charging is required.
What is the torque and speed of this model?
The WM45DS-20/10 provides 20Nm torque and 10rpm speed.
What battery configuration is available?
The motor can be supplied with one 2600mAh battery pack or an optional two-battery-pack configuration according to project requirements.
Does the motor support travel limit setting?
Yes. The WM45DS-20/10 supports adjustable upper and lower travel limits. Final setting should follow the official installation manual or Walter Motor technical guidance.
What applications is this motor suitable for?
It is suitable for roller shutters, roller blinds, solar shading systems, and retrofit window covering projects. Final selection should be confirmed based on shutter weight, tube diameter, friction, guide condition, and installation conditions.
Is this a tubular motor?
Yes. Technically, WM45DS-20/10 uses a 45mm tubular motor structure. For marketing and customer understanding, this page uses the name solar battery motor.
What is the packaging?
The individual box size is 810 x 80 x 80 mm. The master carton size is 830 x 435 x 180 mm, with 10 pieces per carton.
Is a test report available for download?
Yes. A product test report / CE safety test report can be provided for B2B customers. The downloadable document is named clearly as a test report, not as a formal CE certificate unless a separate official certificate is provided.
Can Walter Motor support OEM orders?
Yes. Walter Motor supports OEM cooperation, private label supply, batch production, product documentation, and technical communication for B2B customers.
Looking for a 20Nm Solar Battery Motor for Your Roller Shutter or Blind Project?
Send your shutter size, tube diameter, curtain weight, battery configuration requirement, control requirement, solar panel requirement, and target market. Walter Motor can help confirm whether WM45DS-20/10 is suitable for your project.
For model confirmation, private label planning, or document review, contact Walter Motor for project support.
