CTS 400V 50Ah Waterproof Lithium Battery Pack with BMS for Electric Car

Premium brand-new Grade A NMC cells deliver high energy density and excellent power performance, perfectly meeting the dual requirements of driving range and acceleration for electric vehicles. Compared to LFP (Lithium Iron Phosphate) solutions, the NMC chemistry offers higher energy density within the same volume, contributing to vehicle lightweighting and space optimization. Every cell comes with a traceable QR code for full lifecycle quality tracking.

Self-developed BMS specifically designed for high-voltage electric vehicle applications, with active balancing available as an upgrade. Compatible with CAN/RS485 communication protocols for real-time data exchange with the vehicle's central control system. Features overcharge, overdischarge, overcurrent, short circuit, over-temperature, and thermal runaway protection. Supports insulation resistance monitoring to precisely track every cell string, fully meeting global automotive safety standards.

Built-in liquid cooling circulation pipelines, with optional PI film heating or silicone film heating components. Automatic preheating under low temperatures and intelligent heat dissipation under high loads. Ensures consistent power delivery across a wide temperature range of -20℃ to 45℃, eliminating the impact of extreme climates on vehicle range and power performance.

High-strength metal housing with a professional sealed structure achieves IP67 waterproof and dustproof rating (IP68 optional). Effectively withstands heavy rain, water immersion, mud, gravel, and other harsh road conditions, protecting internal cells and electrical systems. Equipped with MSD manual service disconnect and explosion-proof valve for maximum high-voltage safety.

Reserved CAN/RS485 communication ports connect seamlessly with the vehicle's central control system, displaying real-time data including SOC, cell voltage, temperature, and fault codes. Optional 4G/5G cloud remote monitoring allows fleet managers and service teams to check battery status from anywhere, significantly simplifying maintenance and after-sales service.

Voltage, capacity, dimensions, high-voltage connectors, and communication protocols can be customized on demand. Optional fast charging kits, Bluetooth monitoring APP, and GPS anti-theft modules are available. Compatible with mainstream global EV charging standards, perfectly suited for passenger vehicles, delivery vans, buses, specialty vehicles, and other electrification platforms.

Structure optimized through CAE simulation analysis to achieve system lightweighting while maintaining strength, improving the vehicle's overall energy density ratio. Standardized modular platforms support high-voltage ranges from 200V to 800V, helping vehicle manufacturers shorten new model development cycles and accelerate project implementation.

Partnered with professional battery laboratories to conduct rigorous automotive-grade reliability tests including vibration impact, EMC electromagnetic compatibility, salt spray corrosion, and abuse safety tests. Every battery pack undergoes 100% aging inspection before delivery to guarantee long-term operational stability.

Free of heavy metals and corrosive electrolyte. Zero daily maintenance and zero emissions during operation. Compliant with global transportation carbon emission regulations, helping automakers and operators reduce compliance costs and accelerate the green transition from fuel-powered to electric mobility.