




Express or ocean freight.
Express shipping time: 10-12 days.
Ocean freight to Europe: 35-45 days.
Ocean freight to the USA: 25-30 days.
We can ship to almost anywhere in the world. Please note that some items have shipping restrictions, and some items cannot be shipped to international destinations.
After you place your order, we will estimate the shipping and delivery date based on the item's stock and your shipping address. Tracking information will be updated in your account, and you will also receive a shipping notification email.
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.
You can reach us via the live chat (bottom right corner of our website) or email. We typically respond within 24 hours.
The JK PB2A16S20P is a high-performance Smart BMS designed for 8S-16S LiFePO4 battery configurations. Featuring a massive 200A continuous discharge capacity and an industry-leading 2A active balancing current, it delivers up to 10kW of reliable power for home energy storage while ensuring maximum cell longevity through intelligent voltage management.
High Current Capability: Engineered for heavy-duty applications, supporting a 200A continuous discharge.
Scalable Performance: Easily powers a 5kW load in 8S (24V) setups or a full 10kW load in 16S (48V/51.2V) configurations, meeting the energy demands of most modern households.
Cell Life Extension: Unlike standard passive balancers, the JK PB2A16S20P uses 2A active balancing to rapidly transfer energy between cells.
Precision Maintenance: Effectively eliminates voltage discrepancies, significantly preventing cell degradation and extending the overall lifespan of your battery pack.
Real-Time Diagnostics: Monitor your system at a glance via the large 4.3-inch color touchscreen.
Deep Data Insights: Instantly view total pack voltage, individual cell capacity, internal resistance, and state of health (SOH) without needing external tools.
Wireless Monitoring: The built-in Bluetooth module allows for seamless connection to the JK BMS App.
On-the-Go Tuning: Modify battery parameters, set safety thresholds, and track performance logs directly from your smartphone.
Seamless Integration: Pre-configured to communicate with the world’s leading inverter brands, including Growatt, Goodwe, Deye, SRNE, Sol-Ark, and EG4.
Plug-and-Play Setup: Simplifies the installation of off-grid and hybrid solar storage systems.
| Feature | Details |
| Model | JK-PB2A16S20P |
| Battery Chemistry | LiFePO4 / Li-ion (8S to 16S) |
| Continuous Discharge | 200A |
| Active Balance Current | Max 2.0A (Adjustable) |
| Max Power Output | 10.24kW (16S Configuration) |
| Display Type | 4.3" LCD Touch Interface |
| Communication | CAN / RS485 / Bluetooth |
| Mounting Style | Integrated / Internal |
| No. | Key Function | Configuration / Value |
|---|---|---|
| 01 | Active Balancing Current | 2A (Active Balancing) |
| 02 | Continuous Discharge Current | 200A |
| 03 | Continuous Charge Current | 200A |
| 04 | Maximum Instantaneous Current | 400A (Peak) |
| 05 | Communication Interface | App Support /RS485 /RS232 /CAN /BUS |
| 06 | Charge Overvoltage Protection | ✔ Yes |
| 07 | Discharge Undervoltage Protection | ✔ Yes |
| 08 | Charge Overcurrent Protection | ✔ Yes |
| 09 | Discharge Overcurrent Protection | ✔ Yes |
| 10 | Short Circuit Protection | ✔ Yes |
| 11 | NTC Temperature Sensors | 5 Total (1 Built-in, 4 External) |
| 12 | Working Temperature Range | -30°C ~ 70°C |
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.
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.
Professional energy solutions, starting with controlling the quality of battery cells, selecting trusted BMS manufacturers, and providing one-stop DIY battery energy solutions.
We offer 24/7 online technical support, excellent pre-sales service, professional energy storage solutions, satisfactory after-sales service, and warranty on all products. We provide timely and rapid responses.
High-quality raw materials are used to provide EVE grade A cell, PACE, JK, DALY, or JBD BMS. The batteries have sufficient safety redundancy, from BMS to circuit breaker, fire extinguisher, and T-type fuse.
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