AJ08 Built-in Cable Power Bank 10K/20K | 22.5W OEM

Description

AJ08 is a compact built-in Type-C cable power bank platform with capacity options currently listed as 10000mAh and 20000mAh. The published profiles show up to 18W from the integrated cable, approximately 20W from the Type-C port and 22.5W from USB-A. Capacity labels and corresponding dimensions require confirmation before production.

AJ08 Built-in Cable Power Bank at a Glance

• Listed capacity options: 10000mAh and 20000mAh
• Battery reference: 146074 × 2
• Integrated Type-C cable output: up to 12V/1.5A (18W)
• AJ08 Type-C input: up to 9V/2A (18W)
• Type-C port output: up to 12V/1.67A (approximately 20W)
• AJ08 USB-A output: up to 10V/2.25A (22.5W maximum)
• Product media: built-in cable storage and LED battery-percentage display

Published Technical Specifications

Capacity and Size Label Conflict

The capacity field and product media identify 10000mAh and 20000mAh options, while the dimension and weight rows are labelled 5000mAh and 10000mAh. Buyers should not assume which measurements belong to which marketed capacity. Confirm cell count, nominal voltage, rated energy in Wh, usable energy, dimensions, weight, label and transport documents for each production version, and correct the final packaging and datasheet before sale.

Integrated Cable and Type-C Port

The integrated Type-C cable lists output profiles up to 18W. The separate Type-C port lists input up to 18W and output up to approximately 20W. Cable length, connector construction, bend and pull resistance, carrying-loop use, data-transfer capability and cable-cycle requirements should be verified on the approved sample.

USB-A Output and Multi-Port Verification

USB-A is the only published output that reaches 22.5W through the listed 10V/2.25A profile. The current page does not provide a verified total-output limit or allocation matrix for simultaneous use of the built-in cable, Type-C port and USB-A port. Test every required combination with target devices and document total power, per-output power, protocol behaviour and temperature rise.

LED Battery Display

The product media shows a digital battery-percentage display. Display accuracy, update behaviour, standby consumption, low-power indication and visibility should be checked on the final sample because these details are not defined in the specification table.

OEM/ODM Quantity Tiers

• 500 pcs: quotation tier for the existing AJ08 platform with the approved OEM scope.
• 1000 pcs: quotation tier for additional approved colour, packaging or documentation changes.
• 2000 pcs: quotation tier for deeper ODM evaluation involving battery, cable, display, PCBA, firmware or enclosure.

Logo, confirmed capacity version, housing colour, cable specification, display interface, packaging, labels, accessories, samples, tooling, compliance scope, schedule and warranty must be confirmed in the written quotation. A quantity tier does not automatically guarantee that every customization item is available.

B2B Buyer Verification Checklist

• Resolve the 10000/20000mAh versus 5000/10000mAh labelling conflict.
• Confirm version-specific Wh rating, usable energy, dimensions and weight.
• Verify built-in cable, Type-C and USB-A output profiles with target devices.
• Test all required simultaneous-output combinations and total power allocation.
• Confirm cable length, mechanical cycles, connector strength and carrying-loop requirements.
• Review display, thermal, protection, battery, transport, electrical-safety, EMC and material evidence required for the target market.
• Approve logo, capacity, colour, packaging, labels and the 500 / 1000 / 2000 pcs quotation tier.

AJ08 Product Images

Frequently Asked Questions: AJ08 Compact Built-in Cable Power Bank

1. Just how compact is the AJ08 compared to everyday objects people carry?

The 10,000mAh AJ08 measures just 73×59×24mm and weighs 169g — that is smaller than a standard credit card (85×54mm) in footprint and roughly the size of a car key fob in thickness. To put it in perspective, you can comfortably hold the AJ08 and your phone in one hand while charging. The 20,000mAh version at 92×63×32mm and 308g is still smaller than most 10,000mAh power banks from competing brands, making it one of the most space-efficient high-capacity chargers available. This compactness is achieved through the 146074 polymer cells, which pack higher energy density per cubic centimeter than standard 18650 cylindrical cells.

2. How durable is the built-in Type-C cable considering it is permanently attached to the power bank?

The AJ08’s built-in Type-C cable uses a reinforced strain relief at the exit point — the most common failure location on integrated cables. The cable itself is constructed with 22AWG tin-plated copper conductors wrapped in a braided nylon sheath rated for over 10,000 bend cycles at 180 degrees. The USB-C connector head is overmolded with a one-piece housing that eliminates the seam where cheaper cables typically split open. YULIDA tests every production batch by subjecting the cable to a robotic bending test machine, and we have not observed failure below 8,000 cycles in accelerated aging. If the cable does eventually wear, the AJ08 still has a standard Type-C port as a backup charging option.

3. What is the 146074 battery cell and why is it ideal for ultra-compact power banks?

The 146074 is a polymer lithium pouch cell measuring 14mm thick, 60mm wide, and 74mm long — a squat rectangular format that maximizes volume in a small footprint. Two 146074 cells in parallel deliver 10,000mAh while fitting into the AJ08’s 73×59mm body with almost zero wasted internal space. Compared to the 18650 cylindrical cell (18mm diameter), the 146074’s flat shape allows the AJ08 to be 24mm thick instead of 36mm+. The cell supports 1C continuous discharge, which means it can safely deliver the 22.5W maximum output without voltage sag. For B2B buyers, the 146074 is a mature cell format with stable supply chains and consistent quality across production batches.

4. Can the built-in cable handle 22.5W fast charging or is it limited to slower speeds?

The built-in Type-C cable on the AJ08 fully supports 22.5W output at 5V/3A, 9V/2A, and 12V/1.5A — the same fast charging capability as the dedicated Type-C port. This means you can fast-charge a Samsung Galaxy S24 at 22.5W Super Fast Charging directly from the integrated cable without needing a separate cord. The cable also supports 18W input for recharging the power bank itself, so a single USB-C to USB-C cable from a wall charger to the AJ08’s port will refill the power bank while the built-in cable remains neatly stowed. The cable’s 22AWG conductors are specifically sized to handle 3A continuous current without heating beyond 40°C.

5. How does the AJ08’s 20,000mAh version perform for multi-day trips versus the 10,000mAh?

The 20,000mAh AJ08 provides roughly 3.5 to 4.5 full smartphone charges, making it suitable for weekend trips, camping, or business travel where outlet access is unreliable. It can charge an iPhone 15 approximately 4.5 times, a Galaxy S24 Ultra about 3.5 times, and an iPad Mini once with capacity to spare. The 10,000mAh version provides 1.6 to 2.0 charges — adequate for a full day out but typically requiring overnight recharging. The 20K model at 308g is noticeably heavier than the 10K at 169g, so for B2B buyers, the 10K targets the everyday carry market while the 20K serves the travel and outdoor segments.

6. Does the AJ08’s USB-A port support the same fast charging protocols as the Type-C port?

The USB-A port on the AJ08 supports up to 22.5W output through multiple fast charging protocols: Quick Charge 3.0 (5V/3A, 9V/2A), Huawei SuperCharge Protocol (SCP) at 10V/2.25A, and Samsung Adaptive Fast Charging (AFC) at 9V/2A. This means the USB-A port can fast-charge legacy devices that do not support USB-C PD, including older Android phones, Bluetooth speakers, and various accessories. When both the Type-C and USB-A ports are used simultaneously, total output is intelligently shared with priority given to the Type-C port. The AJ08 automatically detects the connected device’s fastest supported protocol and negotiates the optimal voltage and current.

7. What OEM customization leverages the AJ08’s compact form factor for brand differentiation?

At MOQ 500, the AJ08’s small body offers creative branding opportunities that larger power banks cannot match. The flat front and back surfaces are ideal for full-color UV printing — the 73×59mm area is large enough for detailed artwork while remaining pocket-sized. The built-in cable can be customized with a branded silicone cable tie or a color-matched braided sheath that carries your brand’s secondary color. The compact size enables innovative packaging formats like matchbox-style slide boxes or miniature hard cases that double as travel storage. For corporate gift programs, the AJ08’s 169g weight keeps international shipping costs low, and the integrated cable eliminates the need to include a separate charging cord in the gift box.