1 / 7JKBMS JK-PB Series
PB inverter-ready smart BMS with active balancing and communication options
JK BMS V19 PB2A16S30P is a JK PB-series smart BMS listed from $188.98 to $248.93. It targets inverter-connected LiFePO4 or lithium storage builds and should be matched to the pack series count, current rating, display option, and inverter communication requirements.
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Product details
SELECTION HELP
Check strings, current, active balancing, display, and communication requirements before comparing models.
Read guideSERIES COMPARISONCompare series roles, storage applications, display needs, and inverter communication requirements.
Read guideBALANCING GUIDEUnderstand how balance-current class relates to cell capacity, imbalance, and correction time.
Read guideFIT AND INSTALLATION NOTES
JK-PB2A16S30P is chosen for inverter-connected systems, and the failure mode is almost never the board. It is the link: wrong interface, wrong pinout, or a firmware pair that does not negotiate. Confirm the inverter model and firmware build before ordering, and bring the pack up on local monitoring before connecting the inverter.
Bought for a storage battery that has to hold a protocol conversation with an inverter. Within the JK-PB series, that is the job this one is sized for.
The numbers to design against: 8-16S series, 300A continuous, 2A balancing. Read them against the load and the cells, not against another model's headline figure.
Communication on this unit is Bluetooth, CAN, Heating Function, RS485. That establishes what it can speak, not whether a given inverter will answer; the protocol profile, pinout and both firmware versions still decide that.
Family position
PB2A16S30P| Model | Strings | Continuous | Balance | From, US$ |
|---|---|---|---|---|
JK-PB2A16S10P | 16S | 100A | 2A | 125.00 |
JK-PB2A16S15P | 16S | 150A | 2A | 133.91 |
JK-PB2A16S20P | 16S | 200A | 2A | 158.98 |
| JK-PB2A16S30Pthis listing | 16S | 300A | 2A | 188.98 |
Move across to JK-PB2A16S20P and the only thing that changes inside PB2A is continuous current — 300A here against 200A there, with the 16S ceiling and the 2A balance rate identical on both. US$30.00 separates the two at the base configuration. That makes it a load calculation rather than a feature decision.
4 PB2A codes are priced here, from US$125.00 for JK-PB2A16S10P to US$188.98 for JK-PB2A16S30P; JK-PB2A16S30P is 4 of that set at US$188.98 before configuration options. The spread across the family is a ratings spread rather than a margin spread, so quote the cheapest code that clears the calculation.
JK-PB2A16S30P is listed in 3 configurations. JK-PB2A16S30P at US$188.98 against JK-PB2A16S30P+7" Display at US$248.93 is a spread of US$59.95, which is the figure to weigh before assuming a bundle is cheaper than sourcing the add-on separately.
Model planning
The figures below are the ones that decide whether JK BMS V19 PB2A16S30P works in a given pack. Read them against the cells and the load before ordering.
System fit checks
Four things worth settling while the order is still changeable, and one worth doing in the right order once the hardware arrives.
Confirm the battery pack is within 8-16S. Match the 300A continuous discharge rating to the inverter, load, wiring, and thermal design. Use the 2A active-balancing class as one selection input, not as a substitute for good cell matching.
The listed communication options are Bluetooth, CAN, Heating Function, RS485. Confirm protocol, pinout, baud rate or CAN bitrate, firmware, and inverter compatibility before installation.
Use suitable fusing, cable size, torque, ventilation, insulation, and commissioning checks for the final battery system.
Bring the pack up on local monitoring and confirm the cell readings look sane before connecting anything downstream. Debugging a protocol handshake against a pack that has an unrelated wiring or balance fault costs most of a commissioning day.
Buying notes
Practical points buyers raise before paying: where the product comes from, what documentation to check first, how it ships, and how the price is set.
This catalogue is operated by JKBMS Electronic Technology Co.,Ltd rather than a reseller, so model configuration, documentation, and warranty questions are answered by the manufacturer instead of being referred upstream.
Parameter sets and connector assignments differ between model families and hardware revisions. Download the manual for this exact model and check it against your pack before commissioning rather than relying on a similar model.
JKBMS boards, monitors, displays, and accessories ship free worldwide. Delivery time depends on destination and customs handling rather than on the order value.
Each configuration is priced separately and the total is re-checked on the server at checkout, so the price shown for the selected SKU is the price charged. Larger quantities are quoted separately through a bulk enquiry.
Product FAQ
JK BMS V19 PB2A16S30P is a JK PB-series smart BMS listed from $188.98 to $248.93. It targets inverter-connected LiFePO4 or lithium storage builds and should be matched to the pack series count, current rating, display option, and inverter communication requirements.
Check continuous current (300A), balance rate (2A), the port set (Bluetooth, CAN, Heating Function, RS485) against the pack you are building. The order that matters: series count has to match the cells, current has to cover the load with margin, and the port set has to leave a free port for whatever the system talks to.
Selected JKBMS smart BMS model or display bundle; Model-specific wiring harness and standard accessories supplied with the product; Documentation or setup references supplied with the selected package. Not included: Battery cells, battery enclosure, inverter, charger, and external power cabling; External contactors, breakers, fuses, and installation hardware unless specified. Where a configuration option changes the contents, the option selected at checkout is what ships.
JK-PB2A16S30P is stocked here as a jkbms jk-pb series listing. JKBMS hardware is built by JKBMS Electronic Technology Co.,Ltd, and BatteryBoxKit is the storefront that holds and ships it, so orders leave from held stock and confirmations come from zhou@jkess.com.
This page lists 3 configurations, and the one selected at checkout is what ships. Order directly from this page; boards, displays, cables and accessories ship free. If the cart also includes a battery kit, that kit's destination-based shipping rule applies, so confirm the destination before paying.
Shipping and return terms apply to this listing and to every configuration shown above.
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