Description
J37 PD20W Strap Cable Power Bank Overview
The YULIDA J37 is a built-in-cable power bank platform offered in 10000mAh, 20000mAh and 30000mAh versions. Its published specification lists a bidirectional Type-C port with PD20W, a PD20W Type-C cable output, 22.5W USB-A output and 22.5W Lightning cable output. Device compatibility and simultaneous-output behavior require sample validation.
Verified J37 Specifications
| Item No. | J37 |
| Capacity options | 10000mAh / 20000mAh / 30000mAh |
| Type-C port | Input / output PD20W |
| USB-A port output | 22.5W |
| Type-C strap-cable output | PD20W |
| Built-in Lightning cable output | 22.5W |
| Listed dimensions | 139 × 72 × 15mm / 144 × 72 × 27mm / 144 × 72 × 40mm |
| MOQ | 500 pieces |
Three Capacity and Size Options
The capacities and dimensions are published in corresponding order: 10000mAh at 139 × 72 × 15mm, 20000mAh at 144 × 72 × 27mm and 30000mAh at 144 × 72 × 40mm. Confirm final weight, Wh rating and packaging for each selected version.
Bidirectional PD20W Type-C Port
The Type-C port is listed for PD20W input and output. Exact voltage profiles, charger compatibility, device negotiation and recharge time are not included in the available table and should be confirmed on the approved sample.
Built-In Type-C Strap Cable
The integrated Type-C cable is listed for PD20W output. Buyers should verify cable input capability if required, along with bend-cycle life, connector retention, voltage drop and sustained-load temperature.
USB-A and Lightning 22.5W Outputs
USB-A and the built-in Lightning cable are each listed at 22.5W. The table does not state their voltage profiles, named protocols or device-specific speeds. Validate the intended devices and keep marketing claims within verified test results.
Simultaneous-Output Limits
The page lists several outputs but no combined-power matrix or allocation logic. Do not assume two or three devices can each receive the individual maximum at the same time.
Capacity, Energy and Market Documentation
Battery voltage, Wh rating, rated output capacity, weight and cell configuration are not published. Request final data for transport, runtime, packaging and compliance documentation for each capacity.
OEM, ODM and MOQ Planning
Standard OEM logo and packaging programs start at 500 pieces. Light color or packaging changes can start at 1,000 pieces, subject to capacity allocation and feasibility. Cable, battery, PCBA, firmware or structural ODM work generally starts at 2,000 pieces.
Frequently Asked Questions
Which capacity and size options are listed?
The page lists 10000mAh at 139 × 72 × 15mm, 20000mAh at 144 × 72 × 27mm and 30000mAh at 144 × 72 × 40mm.
What is confirmed about the Type-C strap cable?
Its output is listed as PD20W. Cable input function and mechanical test results should be confirmed if required.
What is confirmed about PD20W charging?
The Type-C port is listed for PD20W input and output, and the Type-C cable for PD20W output. Device-specific speed is not published.
Can several outputs operate at full power together?
No combined-output matrix is published. Confirm supported combinations and shared-power limits on the approved sample.
Is the 10000mAh version confirmed to be 15mm thick?
Yes. The listed dimensions are 139 × 72 × 15mm.
Which capacity should a buyer choose?
Choose using verified capacity, dimensions, weight, Wh rating, packaging and the target program requirements.
What are the OEM and ODM order levels?
Standard OEM starts at 500 pieces, light customization can start at 1,000 pieces, and deeper ODM work generally starts at 2,000 pieces.
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