Dual Lithium Battery Protection Board Stable Output Reliable Performance Customizable for Portable Power Station E-Bike Battery Pack

Description: This 4S 3+1 Dual MOS Lithium Battery Protection Board delivers reliable charge and discharge protection for 4-series lithium battery packs, helping extend battery service life and greatly improve electricity usage safety for all your battery-powered devices. Key Features: 1. Dual MOS Overcurrent Protection: Equipped with high-performance dual MOS transistors that monitor circuit current in real time, it cuts off power supply immediately once overcurrent is detected, effectively avoiding battery pack damage caused by overload and greatly improving operation safety of connected devices. 2. Precision IC Voltage Control: Adopting industrial-grade high-accuracy control IC , it collects voltage data of each battery cell accurately, triggers overcharge and over-discharge protection at preset thresholds to prevent irreversible damage to battery cells, effectively extending the overall service life of the lithium battery pack. 3. Durable FR-4 PCB Substrate: Made of flame-retardant FR-4 fiberglass circuit board, it features excellent heat resistance, corrosion resistance and low-impedance circuit traces, maintains stable performance even in complex working environments, and is not easy to deform or age after long-term use. 4. Balancing Circuit: With optimized voltage balancing design, it balances voltage and power level of 4 series-connected cells during both charging and discharging processes, making output of the battery pack more stable and improving overall endurance performance of the powered device. 5. Multi-scenario Safety Protection: Built-in temperature sensing element and short-circuit protection module trigger power cutoff within milliseconds when abnormal temperature or short circuit occurs, avoiding safety hazards such as fire and fully protecting users and connected equipment. Specifications: Category: Lithium Battery Protection Circuit Board Material: FR-4 fiberglass PCB Charging protection voltage: 16.8V Discharging protection voltage: 11.2V Color: As the picture shows Application: Power tools, small energy storage devices, electric scooters, portable power stations, DIY 4-series lithium battery packs Package: 1 piece per pack Notes: 1. The photo does not show actual size, please refer to the description for specific size details. 2. Please allow slight measurement differences due to manual operation, thank you for your understanding. 3. The actual color of the item may be slightly different from the image due to different monitor display settings. The merchant warrants that their products comply with all applicable laws, and are offered only if they comply with Joom's policies and EU Product Safety and Compliance laws.