- 40000mAh (9373129*4)
- 197*96*48mm
- DC 5V/3A, 9V/2A, 12V/1.5A max
- 5V/3A, 10V/2.25A, 9V/2.22A, 12V/1.67A
- 956g
- 5.5V/455mA, 2.5W
Solar Power Bank, 40000mAh, Hand Crank, Compass, Thermometer SL-912
Product Overview
The largest pack in the range, and the closest thing to a field power station. 40000 mAh across four 9373129 cells covers a week of phone use or several charges of a tablet, camera or drone battery. Charging options are deliberately redundant: a 5.5 V/455 mA solar panel at 2.5 W, a fold-out hand crank producing about 400 mAh per hour, and mains input over Type-C, Micro USB or the built-in USB-A cable. Two USB-A and two Type-C outputs run 22.5 W class fast charging, and four cables are moulded into the body. A compass and a thermometer are built into the housing, and the rear carries both a 2 W torch with SOS and strobe and a separate reading light - useful for expedition, patrol, marine and disaster-response buyers. At 956 g it is a kit item, not an everyday carry.
Key Features
- 40000 mAh capacity - Four 9373129 cells, the highest reserve in the solar range.
- Three charging routes - 2.5 W solar panel, hand crank at 5.5 V/400 mA, and mains over three input options.
- Compass and thermometer - Navigation and ambient temperature built into the housing, no separate instruments needed.
- 22.5 W class output - Two USB-A ports at up to 10 V/2.25 A and 12 V/1.67 A; two Type-C outputs at 12 V/1.67 A.
- Torch plus reading light - A 2 W torch with steady, SOS and strobe modes, and a separate reading lamp.
- 650 nm laser - A 5 mW laser for pointing and signalling at up to 50 m.
- Four built-in cables - Type-C, Micro USB, Lightning and USB-A are moulded into the body.
- Rugged housing - 197 x 96 x 48 mm shell built for vehicle, marine and field kits.
Specifications
| Parameter | Value |
|---|---|
| Model | SL-912 |
| Capacity | 40000 mAh (9373129 x 4) |
| Battery type | Lithium-polymer |
| USB 1 output | DC 5 V/3 A, 10 V/2.25 A, 9 V/2.22 A, 12 V/1.67 A (max) |
| USB 2 output | DC 5 V/3 A (max) |
| Type-C 1 input | DC 5 V/3 A, 9 V/2 A, 12 V/1.5 A (max) |
| Type-C 1 output | DC 5 V/3 A, 9 V/2.2 A, 12 V/1.67 A |
| Type-C 2 output | DC 5 V/3 A, 9 V/2.22 A, 12 V/1.67 A |
| Charging cable output | Type-C 5 V/3 A, 9 V/2.2 A, 12 V/1.67 A; Micro USB 5 V/2.1 A; Lightning 5 V/2.1 A |
| Charging cable input | USB-A 5 V/3 A, 9 V/2 A, 12 V/1.5 A (max) |
| Hand crank | 5.5 V/400 mA max, about 120 rpm, 400 mAh per hour |
| Laser | 5 V/5 mW, 650 nm, 50 m range |
| LED light | 2 W torch with SOS and strobe, plus reading light |
| Solar panel | 5.5 V/455 mA, 2.5 W |
| Cycle life | More than 500 cycles |
| Charging time | About 12 hours over mains |
| Product size | 197 x 96 x 48 mm |
| Weight | 956 g |
| Colours | Black/orange, black/green, black/blue, pure black |
Product Details
OEM & ODM Services
Casun has built power banks in Shenzhen since 2011, and the SL-9 series is our own outdoor platform rather than a bought-in shell. For this model we offer custom logo, custom shell colours, retail gift box and master carton design, cable and port configuration changes, and capacity or panel variants on volume orders. Seven in-house engineers handle PCBA and structure design, so a custom version is a normal production run.
- MOQ 100 pcs for standard colours, mixed models accepted
- Samples in about 5-7 days, bulk production in 15-25 days
- Trade terms EXW, FOB, CIF or DDP; T/T 30% deposit, 70% before shipment
- 12-month warranty against manufacturing defects
Frequently Asked Questions
How long does a full mains charge take?
About 12 hours, which reflects the 40000 mAh capacity. The solar panel and hand crank are backup routes for when mains power is unavailable.
What instruments are built in?
A compass and a thermometer sit on the housing next to the port flap, alongside a 2 W torch with SOS and strobe and a separate reading light.
Can it power a laptop?
It delivers 12 V/1.67 A on the fast ports, which suits tablets, cameras and small USB-C devices. Laptops that need 45 W or more are outside this model's range.
What is your minimum order quantity (MOQ)?
Our MOQ is 100 units for most power bank and speaker models. Selected items can start from as low as 2 units, so retailers and startups can test the market before scaling. Mixed orders across our product categories are accepted.
Can you provide OEM/ODM or private label services?
Yes. As an Alibaba.com certified Custom Manufacturer we provide full OEM and ODM support: custom logo, packaging, colors, graphic design and product development. Our 7 R&D engineers handle PCBA design through final assembly, and free samples are available on most models for evaluation before bulk orders.
What certifications and quality control do you have?
We are ISO 9001 certified. Products comply with CE, RoHS, FCC, KC and EN 62479, and our power banks are Qi wireless charging certified. Every batch passes incoming material inspection, in-line QC and final inspection before shipment. Social compliance is verified by BSCI and Sedex.
What is your lead time and production capacity?
Sample lead time is typically 5-7 days. Bulk production usually takes 15-25 days depending on quantity and customization level, and can extend to 30 days for complex custom work. Our factory runs 3 production lines with an annual capacity of 700,000 units and a 99% on-time dispatch rate.
What are your shipping and payment terms?
We support EXW, FOB, CIF and DDP for most destinations, shipping by sea, air or express (DHL/FedEx/UPS). Payment terms are T/T with 30% deposit and 70% balance before shipment, and Trade Assurance covers product quality and on-time delivery.
What warranty and after-sales support do you offer?
All products carry a 12-month warranty covering manufacturing defects. We provide free replacement parts or repair guidance within the warranty period, and our team typically responds within 2 hours.
Casun store rating 4.8 / 5 from 43 verified buyer reviews on Alibaba.com.
Looking for MOQ, lead time, certification or payment details? See all frequently asked questions.
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