Features 1.MULTI PROTECTION: The battery has high quality, with a protection circuit to prevent overcharge, overdischarge, overvoltage, short circuit, and prolong the service life 2.CHARGING DISCHARGING PROTECTION: The protection board adopts mature protection circuit, special IC, imported high current ultra low internal resistance MOS, perfect and stable charging and discharging protection function 3.FOR VARIOUS OCCASION: Small volume and high current can be used in high current occasion such as power tools and aircraft models. B‑ and C‑ lines should be connected with thick lines, and ensure that the pads and the corresponding positive and negative terminals are properly welded to the equipment 4.5PCS IN TOTAL: The package contain a total of 5pcs lithium battery protection board, enough for you to replace and use, very convenient 5.STABLE AND DURABLE: Battery charging discharging protection board come with stable structure, excellent performance and long service life Specification Item Type: Lithium Battery Protection Board Working Temperature: 50℃ Charge And Discharge Protection: 1-5s Output Voltage: 5v Single Cell Overcharge Protection Voltage: 4.23-4.28V Single Cell Overcharge Protection Recovery Voltage: 4.08-4.18V Overcharge Protection Delay: 0.5-1.5s Over Discharge Protection Delay: 0.5-1.5s Short Circuit Delay: 100-600μs Same Port Discharge Current: 25A Charging Current: 25A Working Voltage: 3.7v Package List 5 x Lithium Battery Protection Board