Description
Smart circular board for managing and protecting lithium batteries for two cells in series with a voltage of 7.4 to 8.4 volts and an operating current of 5 amps.
The circular lithium battery protection board (2S 5A Circular BMS Protection Board) is an ultra-small protection system designed with special circular engineering, to provide the optimal solution for managing, charging, and discharging an array of two lithium cells (such as 18650 batteries) connected in series with a nominal voltage of 7.4V and up to 8.4V when fully charged, with a continuous operating current of 5 amps and a maximum overcurrent cut-off limit of 7 amps.
This board is considered the Benchmark standard in building portable devices with cylindrical or narrow designs; its unique circular shape allows it to be installed directly at the base or top of cylindrical battery packs designed to save space. The board provides integrated quadruple protection including: overcharge protection, over-discharge protection that preserves cell life, protection against excessive current draw above the safe limit (Overcurrent), and immediate short circuit protection. It is the professional and only choice for building integrated power units, operating large LED Flashlights, portable Bluetooth Speakers, miniature RC aircraft, and competitive STEM projects that require moderate voltage and an ultra-small micro size.
A premium, micro-profile 2S 5A circular Li-ion lithium battery BMS protection board precision-engineered to manage and safeguard a 2-cell (7.4V - 8.4V) lithium-ion battery pack configuration. Standing as the definitive hardware benchmark for ultra-compact and cylindrical device enclosures, this specialized circular module integrates high-fidelity monitoring ICs to deliver absolute safety within a minimal physical footprint. It fields a continuous operating current of 5A with a strict hardware current limit cutoff at 7A, shielding the 18650 cell grid against critical overcharging, destructive deep over-discharging, overcurrent spikes, and sudden short-circuits. It serves as an essential, space-saving power management utility for high-intensity LED flashlights, portable Bluetooth speakers, DIY handheld gaming consoles, and advanced academic STEM robotics prototypes.