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2S 3S 4S 100MA Lithium Battery Balance Board Li-ion Battery Balancer Current

<ul><li>15</li><li>3.4mm (Standard), 48</li><li>20</li></ul>

Brand

<p>The 2S 3S 4S 100MA Lithium Battery Balance Board is designed for lithium-ion batteries with a nominal voltage of 3.7V and a full charge voltage of 4.2V, including 18650, 26650, and polymer lithium batteries without size limitations. The board comes in different sizes depending on the number of cells: 45x15x3.4mm for 2S, 15x30(40,50)x2.4mm for 3S, and 20x30(40,50)x2.4mm for 4S configurations. It supports charging voltages from 8.4V to 16.8V and provides a balancing current of 100mA, suitable for battery packs around 4000mAh. The continuous discharge current can reach up to 20A, while the continuous charge current is limited to 10A, with recommendations to reduce load if cooling is insufficient. Made from resin and metal, this balance board weighs approximately 3 grams. It is important to note that this product does not replace a lithium battery protection board as it lacks overcharge and over-discharge protection. Instead, it works in parallel with protection boards to achieve balanced charging. Users should be aware that the board may generate heat during operation and should isolate the battery pack accordingly. Additionally, if there is a significant difference in battery capacity or internal resistance, balancing may take longer or may not complete, so re-matching the battery pack is advised.</p>

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