Description
| Item No.: | J237 High Capacity Strap Cable Power Bank |
| Capacity: | 20000mAh |
| Size: | 105 x 53 x 50mm |
| Type-C Input: | 5V/3A, 9V/3A, 12V/3A, 15V/3A, 20V/3A |
| Type-C Output: | 5V/3A, 9V/3A, 12V/3A, 15V/3A, 20V/3.25A |
| Type-C Cable Input: | 5V/3A, 9V/3A, 12V/3A, 15V/3A, 20V/3.25A |
| Type-C Cable Output: | 5V/3A, 9V/3A, 12V/3A, 15V/3A, 20V/3A |
| USB-A Output: | 5V/3A, 9V/2A, 12V/1.67A, 10V/2.25A |
J237 High Capacity Strap Cable Power Bank 65W
The J237 is a 20000mAh power bank platform with a strap-style built-in Type-C cable, separate Type-C port, USB-A output, and digital readout. The published specification lists a 105 × 53 × 50mm body.
The Type-C port lists output profiles up to 20V/3.25A, while the built-in Type-C cable lists output profiles up to 20V/3A. Type-C input reaches 20V/3A, built-in cable input reaches 20V/3.25A, and USB-A profiles include 10V/2.25A. Buyers should verify protocols, target-device compatibility, cable construction, simultaneous-output behavior, usable energy, thermal performance, and final labeling on the approved sample and production datasheet.
OEM and ODM Order Guidance
- 500 pieces: standard OEM logo and packaging on the existing J237 platform.
- 1,000 pieces: light customization such as an approved housing color, documentation, packaging, display style, or cable-finish change.
- 2,000 pieces: deeper ODM work involving the strap cable, battery, PCBA, firmware, thermal design, connector system, display system, or enclosure.
Final MOQ, colors, samples, tooling, lead time, compatibility, labeling, and certification scope must be confirmed in the quotation.
Frequently Asked Questions: J237 High Capacity Strap Cable Power Bank
1. What specifications are confirmed for the J237?
The published J237 specification lists 20000mAh capacity, a 105 × 53 × 50mm body, Type-C input profiles up to 20V/3A, Type-C output profiles up to 20V/3.25A, built-in Type-C cable input profiles up to 20V/3.25A, built-in cable output profiles up to 20V/3A, and USB-A output profiles up to 10V/2.25A. Final battery configuration, protocols, usable energy, labeling, and output behavior should be confirmed on the approved production datasheet.
2. What devices and charging protocols can use the J237 high-power Type-C output?
The 20V/3.25A port profile and 20V/3A cable profile establish published electrical levels, but they do not by themselves prove a named protocol, universal laptop compatibility, device-specific charging speed, or a fixed runtime gain. Buyers should request the controller and protocol specification, supported profile matrix, negotiation logs, cable capability, protection behavior, and tests for the exact laptops, tablets, phones, or other target devices.
3. How many device charges can the J237 provide?
The page lists 20000mAh but does not publish verified usable output energy, conversion efficiency, device charge counts, recharge time, cycle life, or test conditions. Results depend on cell voltage and configuration, output profile, conversion losses, cable losses, temperature, battery age, and target-device behavior. Buyers should request discharge-energy curves and device-charge tests with clearly stated conditions before publishing runtime or charge-count claims.
4. What should buyers verify about the J237 strap-style Type-C cable?
The voltage and current profiles do not establish conductor gauge, jacket material, bend life, plug-cycle rating, pull strength, connector retention, voltage drop, temperature rise, mechanical load capacity, or suitability for use as a carrying strap. Buyers should request cable drawings, material declarations, bend and pull tests, connector-wear data, electrical-loss and temperature tests, failure-mode records, and production inspection procedures.
5. What transport and airline evidence should J237 buyers request?
The current table does not publish the battery nominal voltage, rated energy in watt-hours, transport test status, or final label details. Capacity in mAh alone is not an airline approval. Buyers should verify the rated energy printed on the final product, battery configuration, transport test summary, shipping documents, packaging and labeling requirements, carrier and airline rules, and current requirements for every market and route.
6. What thermal and simultaneous-output evidence should J237 buyers request?
The page does not publish a verified thermal architecture, sensor locations, protection thresholds, ventilation design, enclosure material, continuous high-power test, simultaneous-output matrix, shared-power limit, or port priority. Buyers should request temperature-rise and abnormal-operation tests, thermal images, protection data, cell and PCBA records, tests for each required output combination, aging procedures, and final-sample inspection results.
7. What OEM and ODM options are available for the J237?
Standard OEM service starts at 500 pieces for logo and packaging on the existing J237 platform. Light customization, such as an approved housing color, documentation, packaging, display style, or cable-finish change, generally starts at 1,000 pieces. Strap cable, battery, PCBA, firmware, thermal design, connector system, display system, or enclosure changes are deeper ODM work and generally start at 2,000 pieces. Final MOQ, colors, samples, tooling, lead time, compatibility, labeling, and certification scope must be confirmed in the quotation.
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