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Eliminate cell voltage gaps and maximize your battery's lifespan with the JK B2A8S20P Smart BMS. Engineered with industry-leading 2A active balancing technology, this BMS doesn't just protect your battery—it actively optimizes it by transferring energy from high to low cells. Whether you are building a home energy storage system or an off-grid RV setup, ensure your DIY battery pack performs at its peak.
| Parameter | Specification Details |
|---|---|
| Model Number | JK-B2A8S20P |
| Battery Series (Strings) | 4S to 8S |
| Chemistry Support | LiFePO4 / Lithium-ion / LTO |
| Active Balance Current | 0.1A - 2.0A (Software Adjustable) |
| Continuous Discharge | 200A |
| Peak Discharge (Transient) | 350A |
| Internal Resistance | ≤ 0.3mΩ |
| Certifications | CE, RoHS, UN38.3 (Component Level) |





Ships within 48 hours · Estimated delivery Aug 5 - Aug 10
US$40
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