Customer Service 008618100274609
Devise
USA,Poland Local Stock,3-7 Days Delivery
Description
xEliminate 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.
Key Features & Benefits
- High-Current 2A Active Balancing: Unlike traditional passive balancing that wastes energy as heat, our active energy transfer technology rapidly levels cell voltages, solving capacity "bottleneck" issues in large packs.
- 200A Continuous Current Handling: Robust hardware design supports a massive 200A continuous discharge, making it ideal for high-power inverters and heavy-duty electric loads.
- Real-Time Bluetooth Monitoring: Use the dedicated JK BMS App to monitor voltage, current, SOC, and temperature directly from your smartphone—no complex external wiring required.
- Versatile 4S to 8S Compatibility: A flexible solution that supports LiFePO4, Li-ion, and LTO chemistries for 12V and 24V battery configurations.
- Industrial-Grade Protection: Equipped with precision safety protocols for overcharge, over-discharge, short-circuit, and dual-temperature sensing (NTC) to ensure total system reliability.
- High-Precision Coulomb Counter: Get accurate State of Charge (SOC) readings based on integrated shunt measurements, eliminating guesswork in your energy management.
Technical Specifications
| 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) |
Common Application Scenarios
- Off-Grid Solar Storage: The perfect "brain" for DIY power walls, ensuring 24/7 reliability for residential solar energy backup.
- RV & Marine Electrics: Compact and vibration-resistant, it manages high-capacity lithium banks for long-distance travel and marine house loads.
- Portable Power Stations: Build your own high-output solar generator with professional-grade safety and cell management.
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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