OGSolarStore

48V Sodium-Ion Inverter BMS for 16S Packs, JK PB2A16S20P, 200A, CAN / RS485, Pre-Programmed (NFPP or Layered Oxide)

Available to order Ships in 4–6 weeks.

$332.00 AUD

Sale Sold out

Taxes included.

Cathode NFPP Layered oxide

Programmed and bench-tested in Michigan
Sodium-ion profile set for your cathode
Pre-order: ships in 4-6 weeks

A JK smart BMS set up for sodium-ion before it ships. Most lithium BMS boards ship with LFP or Li-ion limits that cut a sodium pack off early or let it charge past the cell's limit. We program this JK PB2A16S20P with a sodium-ion profile for your cells (NFPP or layered oxide), check the cutoffs on our bench, and put a settings card in the box.

Set up for: 16S sodium-ion packs (48V class), including cold-climate builds.

What we set for you

Per cell	Charge cutoff / resume	Discharge cutoff / resume	Balance start
NFPP 18650 (our cell)	3.70 / 3.60 V	2.00 / 2.20 V	3.30 V
NFPP 160Ah prismatic	3.45 / 3.35 V	2.00 / 2.20 V	3.30 V
Layered oxide 18650 (our cell)	4.00 / 3.90 V	2.00 / 2.20 V	3.40 V
Layered oxide 32140 10Ah	3.95 / 3.85 V	2.00 / 2.20 V	3.40 V
Layered oxide 210Ah prismatic	3.90 / 3.80 V	2.00 / 2.20 V	3.40 V

Every charge cutoff sits at or below the cell datasheet maximum. We also set the low-temperature charge limit and pack capacity, then lock the settings with a parameter password so a tap on a preset in the app can't overwrite them. Ask us for the password if you want to change them yourself.

Pick your cathode, then tell us the cell. NFPP and layered-oxide cells need different limits, and cells within each cathode differ, so add your cell model in the order note. Other cell? We set it from your datasheet.

The hardware: JK PB2A16S20P

This is the JK PB2A16S20P from JK BMS (Jikong), the smart BMS most DIY Solar Forum builders now use. We buy it direct from the factory, set it up for your cells, and test it on our bench in Michigan before it ships.

Download the JK PB2A16S20P datasheet (PDF)

Specs

200A continuous discharge, 2A active balancing
Closed loop: CAN and RS485 to the inverter, with protocols for Victron, Deye, Growatt, GoodWe, SMA, Sofar, SRNE, Voltronic, INVT, Must and Pylontech
Second RS485 port to link packs in parallel, DIP address switch (0–15), 2 dry contacts
Heater control output for cold-climate packs, discharge precharge, charge current limiting
Bluetooth app and UART · 20–70 V operating range
Board size 300 × 100 × 24 mm

Closed loop: send us your inverter model and we set the protocol and baud rate before it ships.

What's in the box

JK PB2A16S20P BMS
Interface panel: CAN / RS485 RJ45 ports, DIP address switch, dry contacts, power switch
4 balance lead harnesses (90 cm) and temperature sensors
RJ45 cable, power lead, heater lead and switch lead
M6 screws
Settings card with every value we set

Other cell counts

This listing is set up for 16S. The same board covers 12S to 16S sodium-ion. Building something less common, like 13S, 14S or 15S? Order this listing, put your cell count and cell model in the order note, and we program it for your pack. Not sure it fits? Ask before you order.