Lester Summit Series II Battery Charger – 36–48V Auto-Ranging, 13–18A, SB50
The Lester Summit Series II Battery Charger is an advanced smart charging solution designed for golf carts and electric vehicles using 36V or 48V battery systems. With auto-ranging voltage capability and a 13–18 amp output, this charger provides efficient, safe, and optimized charging performance for everyday use.
Auto-Ranging Voltage Detection
This charger automatically detects whether your system is 36V or 48V and adjusts its charging profile accordingly. This ensures your batteries receive the correct voltage for safe and efficient charging without manual configuration.
Smart Charging Technology
Operating at 13–18 amps, the Summit Series II balances fast charging with battery protection. Its intelligent charging algorithm helps reduce overheating, prevent overcharging, and extend overall battery lifespan.
SB50 Connector Included
Equipped with an SB50 connector, this charger provides a secure, industry-standard connection commonly used in golf cart charging systems. It ensures stable power transfer and easy plug-and-play operation.
High-Efficiency Performance
Built with modern high-frequency technology, this charger delivers efficient energy conversion with reduced heat output and energy loss. This improves long-term reliability and charging consistency.
Durable and Reliable Construction
Engineered for both residential and commercial use, the Summit Series II features a rugged housing and built-in safety protections against electrical faults, overheating, and short circuits.
Key Features
- 36V–48V auto-ranging voltage detection
- 13–18 amp smart charging output
- SB50 connector for secure compatibility
- High-frequency efficient charging design
- Automatic battery protection and optimization
- Durable construction for long-term use
The Lester Summit Series II SB50 Charger is a reliable, intelligent solution for maintaining optimal battery performance and extending the life of your golf cart battery system.


