⚡ GTK Adjustable Charger 13S (48V) to 17S (71.4V) – 50A High Performance

The GTK 13S to 17S – 50A adjustable charger is a professional and versatile unit designed for ultra-fast and safe charging of lithium-ion, LiFePO4 or NMC batteries. Thanks to its high conversion efficiency of 99.9% , it offers exceptional voltage stability and can also be used as an adjustable laboratory power supply for research, maintenance and power testing.

Adapted to the needs of electric mobility , the industrial sector and energy storage , this GTK charger guarantees total control of the output voltage and charging current , ensuring optimal precision in all configurations.

MINIMUM CHARGING VOLTAGE: 39V

MAXIMUM CHARGING VOLTAGE: 71.4V

🔧 Technical specifications

• ⚡ Adjustable output voltages: from 13S to 17S
• ➡️ 13S: 54.6V
• ➡️ 14S: 58.8V
• ➡️ 15S: 63.0V
• ➡️ 16S: 67.2V
• ➡️ 17S: 71.4V
• Mains input: 100 to 240V AC – 50/60Hz (compatible with EU and industrial sockets)
• Maximum charging current: up to 50A (adjustable from the integrated interface)
• Battery compatibility: Lithium-ion, LiFePO4, LFP, NMC
• Cooling: Dual intelligent ventilation + heat sink aluminum housing
• Complete protections: overvoltage, short circuit, overcurrent, overheating
• Energy efficiency: up to 99.9% – GTK high-frequency conversion technology
• Digital LCD display: voltage, current, power, Ah and Wh live
• Integrated Bluetooth: adjustment and monitoring from smartphone via dedicated application
• Weight: 2.3 kg
• Compact dimensions: 40.8 × 105 × 269 mm
• Certifications: TÜV, CE, FCC, CB, RoHS, EAC, NRTL, ANATEL – international compliance and safety
• Materials: 100% matte black anodized aluminum chassis, robust and optimized for heat dissipation

🔋 Versatility and compatibility

This GTK 50A is not limited to simple charging: it can also be used as a high-power laboratory power supply to power, calibrate or test any type of electrical or electronic device.

• ✔️ Electric mobility: scooters (Dualtron, Kaabo, Teverun, Nami), electric motorcycles (Sur-Ron, Talaria, Eride Pro) and electric karts.
• ✔️ Industrial applications: test benches, battery pack maintenance, power supply for robots and machines.
• ✔️ Labs and Workshops: Voltage simulation, manual cell charging, BMS or controller testing.
• ✔️ Energy storage: fixed batteries, powerwalls, solar and hybrid installations.

🔌 Connectors and adapters available

The GTK 50A charger can be supplied with several types of connectors depending on the use:

• 🔸 XT60 or XT90 – standard high-current connectors.
• 🔸 LP16 / LP20 – connectors used on most electric scooters and motorcycles.
• 🔸 GX16 – 2, 3 or 4 pins for light electric mobility.
• 🔸 Amphenol – high-performance industrial connectors.
• 🔸 Anderson Powerpole – for modular professional applications.
• 🔸 Crocodile clips or COS eyelets – perfect for test benches or stationary batteries.
• 🔸 Other connectors available on request (custom manufacturing possible).

💡 How it works and benefits

• Precise adjustment: adjustable voltage and current for all 13S to 17S battery configurations (54.6V to 71.4V).
• Laboratory power supply mode: ideal for technical testing, diagnostics or direct powering of devices.
• Multi-voltage compatibility: 48V, 52V, 60V, 67.2V, 71.4V and intermediate batteries.
• Robust design: anodized aluminum structure, oversized components, intelligent cooling.
• High controlled power: up to 50A continuous charging without loss of efficiency or overheating.

📦 Service & Warranty

• ✅ Warranty: 2 years – each unit tested before shipping.
• 🚚 Shipping: within 24/48 hours to France and Europe.
• 🛠️ Custom options: adapting connectors, cables and accessories to your needs.

❓ FAQ – GTK 50A Adjustable Charger

➡️ Can it be used as a laboratory power supply?

Yes ✅, it is used as a stable variable voltage source for testing, development and powering technical equipment.

➡️ Compatible with which electric vehicles?

Compatible with most scooters, motorcycles and 13S to 17S lithium packs: Dualtron, Kaabo, Teverun, Sur-Ron, Talaria, Nami, etc.

➡️ Is the charger noisy?

No, the fans only activate under heavy load. The intelligent cooling system ensures quiet operation in most situations.

➡️ How to adjust voltage and current?

Settings are made directly on the digital screen or via Bluetooth from your mobile phone depending on the version.

➡️ What connectors are available?

Available with XT60, LP16, GX16, Anderson, Amphenol or COS eyelets . Custom connectors available upon request.

📩 Need technical advice or a specific configuration? Contact Source'IT to design your GTK charger according to your battery, voltage, or connectors.

*Non-contractual photos – finishes may vary depending on the version and connector chosen.