JKBMS Active Balancers
2A 2~16S Battery Equalizer
JKBMS JK-B2A16S: 2A active balancer for 2~16S LiFePO4 & lithium packs. ±3mV accuracy, Bluetooth app, optional RS485/CAN. Ultra-light 300g.
Free shipping on all products except battery kits. Orders containing battery kits have a flat US$100 shipping fee per order.
Product details
Hardware revisions and optional interfaces may differ; confirm the supplied revision before wiring or changing protection settings. These specifications apply to the historical 13-16S revision. The operating temperature rating is unconfirmed; confirm the current model revision before use.
| Dimensions | 157.6 x 99 x 18.5 mm |
|---|---|
| Active balancing current | 0.1-2 A, adjustable |
| Cell voltage measurement range | 1-5 V |
| Voltage measurement accuracy | +/-5 mV |
| Post-balance cell voltage difference | <=5 mV, as listed in the reference |
| Supply voltage | 40-100 V |
| Power supply | Battery pack or external power supply |
| Balancing method | Active energy transfer |
| Balancing start threshold | Configurable; default cell voltage difference >10 mV |
| Battery strings (reference revision) | 13-16S |
| Battery chemistries | NMC and LiFePO4 |
| Cascading | Not supported |
| Bluetooth app | Android and iOS |
| Supply current at 100 V | 10 mA balancing; 6 mA not balancing |
Detailed product information
Review the full product illustrations, dimensions, component information, and application notes before selecting a configuration.
SELECTION HELP
Understand how balance-current class relates to cell capacity, imbalance, and correction time.
Read guideBALANCER CATALOGCompare battery strings, balance current, cascade design, CAN, RS485, and supplied accessories across the active-balancer range.
Read guideCOMMUNICATION GUIDESeparate physical interface choice from inverter protocol and system compatibility requirements.
Read guideMODEL-SPECIFIC APPLICATION NOTES
JKBMS JK-B2A16S Active Balancer — 2A 2~16S Battery Equalizer belongs to the JKBMS standalone active balancers and is best reviewed for standalone cell equalization where battery protection, switching, and current control are handled separately.
The listed battery string range is 2–16S. The active-balancing reference is 2A active.
For communication planning, this page lists Bluetooth, optional RS485/CAN, cascade support; protocol, pinout, cable, firmware, and inverter or service-tool settings still need confirmation.
Model planning
Use this summary to confirm whether JKBMS JK-B2A16S Active Balancer — 2A 2~16S Battery Equalizer fits the battery system before checkout, quotation, or installation.
System fit checks
Use these checks before selecting a configuration, requesting a quote, or installing the product in a battery system.
Confirm the complete battery string is within 2–16S. Use the 2A active balance-current class only after checking cell capacity, voltage spread, wiring, and thermal conditions. This product equalizes cells but does not replace charge, discharge, overcurrent, temperature, or short-circuit protection from a suitable BMS and system design.
Equalizer communication status: Bluetooth, optional RS485/CAN, cascade support. Confirm the exact connector, cascade role, CAN or RS485 interface, wiring diagram, and controller compatibility before installation.
Use suitable fusing, cable size, torque, ventilation, insulation, and commissioning checks for the final battery system.
Verify this product on https://www.jkbms.net/products/jkbms-jk-b2a16s-active-balancer, confirm the official domain is www.jkbms.net, and use zhou@jkbms.net for quotation checks before bulk payment or project procurement.
Product FAQ
JKBMS JK-B2A16S Active Balancer — 2A 2~16S Battery Equalizer is listed for jkbms active balancers. JKBMS JK-B2A16S: 2A active balancer for 2~16S LiFePO4 & lithium packs. ±3mV accuracy, Bluetooth app, optional RS485/CAN. Ultra-light 300g.
JKBMS JK-B2A16S Active Balancer — 2A 2~16S Battery Equalizer is listed on www.jkbms.net, the official factory website operated by JKBMS Electronic Technology Co.,Ltd. Use https://www.jkbms.net and the official sales email zhou@jkbms.net to verify quotes before payment.
Confirm model JK-B2A16S, 2–16S, 2A active, communication Bluetooth, optional RS485/CAN, cascade support against the battery pack, inverter, wiring, and project requirements before ordering.
The selected JKBMS active balancer model; Sampling harness, connector leads, and standard accessories shown in the selected product packing list; Basic supplier packing and available model documentation. Not included: Battery protection BMS, charge/discharge switching, contactors, precharge circuit, battery cells, and system power hardware; Optional communication hardware, controller, cable, or cascade accessory unless listed in the selected product packing list. The final selected configuration and written quotation remain the reference for supply scope.
Purchasable JKBMS products can be ordered from the product page. Verify the model, configuration, destination, and official sales contact before bulk purchasing or project use. Return and shipping rules are published at https://www.jkbms.net/policies.
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