CTEK Pro 15S 15A 12V Battery Charger and Maintainer All Battery Types with Lithium Mode for Cars Boats Workshops

Meet the CTEK Pro 15S 15A – a robust, fully automatic 12V battery charger and maintainer designed for real-world use across workshop, car, caravan and boat environments. With an impressive capacity range and a dedicated lithium mode, this unit keeps batteries healthy, ready and reliable, wherever you go.

The Pro 15S delivers fast, dependable charging while delivering long-term maintenance to prevent sulphation and prolong battery life. It’s compatible with any type of 12V battery and supports a broad capacity range from 20Ah up to 350Ah, making it a versatile choice for both small and large setups. For lithium chemistries (LiFePO4, Li-Fe, Li-iron, LFP), it offers a dedicated lithium mode that optimizes charging profiles for safety and performance on 12V lithium packs from 20Ah to 300Ah.

• All-in-one charge, maintain and restore: Fully automatic operation handles the charging sequence, maintenance phase, and a dedicated reconditioning programme to revive tired or deeply discharged batteries.
• Lithium-ready with dedicated mode: Includes a lithium-specific charging profile to protect LiFePO4 and related chemistries while delivering efficient, safe charging.
• SUPPLY mode for diagnostic work: When the battery is temporarily disconnected, SUPPLY mode powers essential electronics for diagnostics or fault-finding without compromising safety.
• Smart safety and vehicle protection: Built-in temperature sensor optimizes charge levels, while low voltage and current ripple keep the battery and delicate vehicle electronics safe. Spark-proof, reverse-polarity protected and designed to minimize risk during connection.
• Rugged, outdoors-ready design: IP44 classified for outdoor use, with a lightweight yet impact-resistant casing that suits mobile setups and permanent installations alike.
• Versatile compatibility: Works with any 12V battery type, from compact charging needs to larger vehicle, caravan or boat setups, with a wide 20Ah–350Ah (20Ah–300Ah lithium) range to match your power needs.
• Practical, user-friendly features: Simple plug-and-go connections, clear automatic modes, and the reassurance of a 2-year warranty.

Who should consider the CTEK Pro 15S 15A? Fleet owners, workshop technicians, caravanners, boat owners and weekend-warrior car enthusiasts who demand reliable, safe charging that protects battery life and electronics. If you’ve ever faced a stubborn flat battery, a diagnostic session without power, or the worry of compromising sensitive onboard systems, the Pro 15S delivers a practical, trusted solution.

Compared to basic chargers, the Pro 15S combines rapid, intelligent charging with intelligent maintenance, a reconditioning programme to extend battery life, and a dedicated lithium mode for modern packs—all in a compact, portable package. Whether you’re keeping a classic car ready to roll, maintaining a seasonal caravan battery, or keeping a boat’s starting system primed, this charger makes battery care simple, effective and dependable.

Product Code: CTEKMXS15. 2-year warranty. Shipped directly from local suppliers to provide quick, reliable delivery wherever you are.