JST RCY series connectors are the principal products of power batteries and energy storage systems through their high current capacity and safe design. The terminal adopts copper alloy silver plating process, with the ability to endure 30A continuous current and 60A transient peak (duration 10 seconds), and the contact resistance is less than 0.5mΩ, 40% lower than similar products. For example, once a power tool manufacturer adopts JST RCY, the battery pack’s energy density is increased to 300Wh/kg, the charging and discharging efficiency is increased from 92% to 97%, and the single charge time is reduced by 25%. The product conforms to UL 1977 and IEC 62133 standards, insertion and withdrawal life of up to 10,000 times (test condition: 10N insertion and withdrawal force, temperature -40℃~+85℃), the average annual fault rate is as low as 0.003%, and the post-maintenance cost is saved by more than 500,000 yuan/year.
For reliability in severe environments, the JST RCY housing is made of flame retardant V-0 grade PBT material with high temperature resistance of 150 ° C and low temperature resistance of -55 ° C, and is certified by IP67 protection (dust protection rate 99.99%, water proof soaking 1 meter /30 minutes). After a new energy vehicle battery management system (BMS) adopts JST RCY, the fluctuation voltage range is reduced from ±3% to ±0.5% in the 85℃ high temperature cycle test, and the connection failure probability in the vibration frequency of 500Hz is less than 0.0001%. Its double-locked structure pattern has a tensile strength of 50N, and contact impedance deviation after drop test (1.5m height /100 times) is <2%, which ensures the UAV battery’s stable power supply in severe environments.
In consideration of cost savings, the JST RCY modular design improves production line assembly efficiency by 70% and reduces labor costs by 60%. A company that stores battery energy reduced the assembly time of a single part from 25 seconds to 8 seconds through the automatic crimping process, and the annual production capacity exceeded 8 million parts, and the marginal cost decreased by 33%. It complies with the provisions of RoHS and REACH regulations, the material recovery rate is 95%, and the carbon emissions during the life cycle are 48% less than those of traditional nickel-cadmium connectors. It is estimated that the global battery connector market size will be 3.4 billion US dollars by 2025, and jst rcy ranks top three with the market share of 12%, and the re-purchasing rate from customers is above 90%.
JST RCY is motivated by technology innovation to keep pushing the boundaries of performance. Its internal temperature sensor and overcurrent protection module, response time <10ms, can cut off the current in short circuit (threshold 60A±5%), failure protection success rate 99.99%. For example, after a energy storage station adopted the technology, the incidence of thermal runaway events was reduced from 0.1% to 0.002%, and the fire risk was reduced by 90%. Its stackable design offers 16-port parallel connection (4.2 mm pitch), raises current capacity to 480A, and achieves 35% size saving and 28% weight saving in the electric bus battery pack, which is 50% greater efficiency than the traditional bolted solution.
Market validation shows that JST RCY has been adopted by 150+ customers such as Tesla Powerwall and Ningde Times, and the mean time between failures (MTBF) exceeds 500,000 hours. A trial from a brand of consumer electronics found that the battery cycle life of Bluetooth headphones with JST RCY was enhanced from 500 to 1,200, and the return rate decreased by 78%. Wood Mackenzie estimates that the installed capacity of battery energy storage worldwide will be 1.2TWh in 2030, with a compound annual growth rate of 31%. With quantifiable safety enhancements and energy efficiency benefits, JST RCY continues to be a leader in the innovation wave of highly reliable battery interconnect technology.