This Set of Lithium-Ion Protection Boards
Upgrade your battery projects with these sleek, green lithium-ion protection circuit boards. Each PCB measures 40mm x 4mm x 3mm and weighs just 10 grams, combining compactness with durability. Designed specifically for 18650 batteries, these boards feature high-precision voltage detection to prevent overcharge at 4.25±0.05V and over-discharge at 2.54±0.1V, ensuring optimal battery performance. Built with MOS transistors, they regulate charging and discharging currents effectively up to 2A, and include three-stage over-current and short-circuit protection for safe operation. The streamlined design, with neatly cut edges and precise surface-mount components—including black ICs marked “8205A” and “1205A”—makes integration into your lithium-ion battery packs straightforward. These protection boards offer reliability and safety for your DIY projects or battery packs, ensuring long-lasting, secure operation without balancing features.
Keys features of the protection circuit boards
- Compact green PCB measuring 40mm by 4mm by 3mm, lightweight at only 10 grams for easy integration into small battery packs.
- High-accuracy voltage detection at overcharge 4.25±0.05V and over-discharge 2.54±0.1V, ensuring safe charge cycles and extending battery lifespan.
- Three-stage over-current detection with protections set at a maximum of 3A, including overloads and short circuit safety measures.
- Uses MOS transistors for precise control over charge and discharge, handling currents up to 2A continuously for reliable power flow.
- Minimally designed with smooth, clean-cut edges, black ICs labeled “8205A” and “1205A,” and multiple surface-mount resistors and capacitors for a tidy, professional look.
- Perfect for 18650 lithium-ion cell applications with no balancing functions included, suitable for DIY projects and battery pack assembly.
This set of protection boards, a must-have—order now to secure your batteries!
Invest in these high-quality protection circuits today and safeguard your lithium-ion batteries effortlessly. Their compact size and technical features make them ideal for DIY enthusiasts and professionals alike. With precise voltage and current protections, you can confidently build or repair battery packs knowing your batteries are protected from overcharge, over-discharge, and short circuits. Whether you're customizing a power bank or developing portable devices, these boards ensure a safe, efficient power management solution. Don't wait—add this reliable set to your toolkit and experience safer, longer-lasting battery performance.







