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AFERIY GK03 Start Booster 2000A 12V
Subtitle
Start booster and power bank in one — 2000 A starting power that works down to -40 °C.
Description
AFERIY GK03 gives your car a new start when the battery is dead — without needing a second car or jumper cables. With 2000 A peak current, it starts gasoline engines up to 6.0 liters and diesel engines up to 3.0 liters, and works with all 12V vehicles: cars, SUVs, RVs, motorcycles, and light trucks.
The built-in battery of 27,500 mAh (80 Wh) makes the GK03 more than just a start booster — it also charges phones, tablets, and other equipment via two USB ports and a DC output. The cells are of sodium-ion type, providing reliable performance in extreme cold. The device is reliable from -40 °C to +80 °C, where common lithium batteries often fail — a crucial difference for Nordic conditions and emergency use.
60 W PD fast charging fully charges the GK03 in about 1.3 hours. An HD screen displays battery level, voltage, and operating mode in real-time, and a built-in 3-in-1 lamp with steady light, blink, and SOS provides light at the roadside or in emergencies. Smart clamps automatically detect polarity, and a complete protection system safeguards against overvoltage, overcurrent, short circuit, and reverse polarity. The robust casing is built for tough environments and long-term use.
Highlights:
2000 A peak current — starts gasoline up to 6.0 L and diesel up to 3.0 L
Start booster and power bank in one, 27,500 mAh / 80 Wh
Sodium-ion cell — reliable operation from -40 °C to +80 °C
60 W PD fast charging, fully charged in approximately 1.3 hours
Two USB outputs + DC output for charging multiple devices
HD display and 3-in-1 LED lamp (steady light / blink / SOS)
Smart clamps with automatic polarity detection and full protection system
Specification
Specification
Value
Model
AFERIY GK03
Type
Start booster / power bank
Peak current (jumpstart)
2000 A
Starting current
550 A
Engine capacity
Gasoline up to 6.0 L / diesel up to 3.0 L
Vehicle compatibility
All 12V vehicles (car, SUV, RV, motorcycle, light truck)
Battery capacity
27,500 mAh / 80 Wh
Cell type
Sodium-ion, high-performance cell
Cycle lifespan
3,000 cycles (≥ 70% remaining capacity)
Input (USB-C)
PD up to 60 W (5–20 V / 3 A)
USB-A output
5 V / 2.4 A (QC, up to 18 W)
USB-C output
PD up to 60 W
DC output (DC5521)
15 V / 10 A
Full charge
approximately 1.3 hours (60 W PD)
Screen
HD display — battery level, voltage, operating mode
Lighting
3-in-1 LED (steady light / blink / SOS)
Protection
Overvoltage, overcurrent, short circuit, reverse polarity, overheating
Operating temperature
-40 °C to +80 °C
Dimensions
216 × 186 × 54 mm
Weight
1.2 kg
The package includes
Start booster, smart clamps, USB-C cable 60 W (1 m), storage bag, manual
Warranty
2 years
Installation
Need help with the installation? We offer professional installation from SEK 1,495.
Shipping & Returns
Delivery: 2–7 business days within Sweden. Free shipping on orders over SEK 1,500. Returns: 30-day right of return on unopened packages. Warranty: 5 years on all equipment.
We stand behind what we sell — from the first contact to long after your system is in place
Professional installation
Our technicians are trained to industry standard and install and configure security systems according to product requirements and manufacturer instructions. We use CE-certified equipment.
Swedish support
Direct contact with us during business hours. Real people, no bots.
2-year guarantee
Applies to all equipment you buy from us. Can be extended up to 5 years. Statutory right of return.
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Ensec AB is the data controller for personal data processed via www.ensec.se.
Personal Data We Process
We process the following types of personal data:
Name
Contact details: Phone number and email address
Payment information
Customer history
Technical data: IP address and cookie usage
Purposes of Processing
Personal data is processed in order to:
Provide our services
Fulfil contracts
Manage customer relationships
Carry out marketing
Ensure security and improve our services
Processing is based on the following legal grounds:
Contract
Legal obligation
Consent
Legitimate interest
Storage and Sharing
Personal data is kept only as long as necessary for the relevant purpose or as required by law.
Data may be shared with suppliers and partners, such as IT and payment service providers, who process personal data on our behalf.
International Transfers
If personal data is transferred to countries outside the EU/EEA, we ensure appropriate safeguards are in place, e.g. through standard contractual clauses.
You have the right to lodge a complaint with the Swedish Authority for Privacy Protection (IMY): imy.se
Terms of Service
Parties and Agreement
Seller: Ensec AB ("Ensec", "we", "our")
Buyer: Individual or company over 18 years of age.
By completing a purchase, you accept these terms.
Prices and Payment
All prices are in SEK including VAT unless otherwise stated. We reserve the right to change prices. Payment is made via Klarna, Apple Pay, Shopify Payments, cryptocurrency or bank card.
Delivery
Delivery normally takes 2–7 business days within Sweden. We are not liable for delays beyond our control. Free shipping over SEK 1,500 within Sweden.
Right of Withdrawal and Returns
Consumers have a 14-day right of withdrawal under the Swedish Distance Contracts Act. Returns must be in unbroken condition and original packaging. Business customers have no right of withdrawal unless otherwise agreed.
For returns, contact info@ensec.se for return instructions before sending the item back.
Complaints and Warranty
Complaints under the Swedish Consumer Sales Act. Warranty period: 2 years on all equipment from Ensec unless otherwise stated. Extended warranty up to 5 years is available. For faults, contact info@ensec.se promptly.
Limitation of Liability
Ensec is not liable for indirect or consequential damages. Our liability is limited to the purchase value, unless mandatory law provides otherwise.
Personal Data
We handle personal data under GDPR. See our for details.
Disputes and Law
Swedish law applies. Disputes may be reviewed by the Swedish National Board for Consumer Disputes (ARN) or by a general court.
We dispatch all orders within 1–2 business days from our warehouse in Stockholm:
Sweden: 2–7 business days (PostNord MyPack)
Nordics: 4–10 business days
EU: 5–14 business days
UK: 7–14 business days (customs may apply)
Other markets (B2B): On request
Shipping Costs
Free shipping over SEK 1,500 within Sweden. Below this: SEK 49–149 depending on size/weight — exact price shown at checkout. International: SEK 149–499 depending on destination.
Tracking
You'll receive a tracking number by email as soon as the parcel is scanned by PostNord (usually within 24 h of dispatch).
Right of Withdrawal
As a consumer you have a statutory 14-day right of withdrawal. Note: professional TSCM equipment and special-order security products are subject to separate purchase terms. See our for the return process.
Damaged / Lost Parcel
Inspect the parcel on receipt. If damaged — contact us within 7 days with photos. Lost parcel — we open an investigation with PostNord and replace within 10 business days.
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