JK BMS V19 300A Inverter BMS — 8S–16S LiFePO₄ Batterihanteringssystem med 4,3" pekskärm | Lager i Polen

JK BMS V19 300A Inverter BMS — 8S–16S LiFePO₄ Batterihanteringssystem med 4,3" pekskärm | Lager i Polen

Note

DDP ocean freight quotes are calculated based on the destination country and must be confirmed with customer service staff prior to shipment：bailyn1278@fenchenergy.com

Product overview

The JK BMS V19 300A is the high-current version of the V19 inverter BMS, built for large solar storage banks and hybrid systems that run 12kW-class inverters. It manages 8S–16S lithium packs at 25.6V, 48V and 51.2V with 300A continuous current — roughly 15kW of continuous throughput at 51.2V — and communicates directly with your inverter through RS485, CAN, Bluetooth and RS232 ports, so the inverter follows the BMS’s real SOC, voltage and current limits instead of estimating them from pack voltage.

That current headroom is what separates it from a 200A board: 280Ah and 314Ah cells can discharge at 1C without the BMS clipping the load, and surge-heavy equipment such as well pumps, compressors and EV chargers stops tripping protection.

A 4.3″ touch screen gives you live cell voltages, pack current, SOC, temperature and alarm status on the battery itself, with no laptop and no phone required. The same data is available in the JIKONG Android / iOS app over built-in Bluetooth.

Stocked in Poland — ships from the EU

This board is held in our Poland warehouse, so European buyers get a local, trackable shipment instead of a month-long ocean wait:

• Dispatch from Poland warehouse within [1–2 business days]
• Delivery across the EU in [3–7 business days]
• No customs clearance, no import duty and no surprise fees for EU deliveries
• Local returns handling for EU orders
• [EU VAT invoice available on request]

If you are an installer or a DIY builder with a deadline, this is the fastest way to get a genuine V19 board in Europe.

Key features

300A continuous current — roughly 15kW of throughput at 51.2V; runs cooler at the same load than a 200A board and leaves room to add a second inverter later without changing the BMS.
8S–16S, 25.6V / 48V / 51.2V — one board covers 8S, 15S and 16S LiFePO₄ and Li-ion packs used in 24V and 48V solar storage banks.
2A active equalization — energy is transferred between cells rather than burned off, keeping pack capacity stable over thousands of cycles.
Inverter communication: RS485 + CAN — works with mainstream hybrid inverters using Pylontech CAN, Deye/Sunsynk, Growatt, Voltronic/Axpert, Luxpower, SRNE, MUST, Goodwe and Sofar protocols.
Bluetooth + RS232 — monitor and set parameters from the JIKONG app, or integrate over serial.
4.3″ touch screen — real-time cell and pack data on a colour display, touch settings included.
Heating function — low-temperature heating control for cold-weather charging.
Full protection suite — over-charge, over-discharge, over-current, short circuit, over-temperature and cell voltage dropout protection.
Self-powered from the battery pack — no external power supply, <5mA without communication, <15mA with RS485/CAN active.
CE certified.

Packaging and delivery

Selling unit: single item.

EU orders ship from our Poland warehouse with tracking. Each BMS is packed with its harness set, temperature sensors, communication cable and 4.3″ touch screen in a foam-lined carton suitable for international transit.

Bulk and non-EU orders are quoted with DDP sea shipping to your door. As explained in the note above, DDP ocean freight is calculated based on the destination country and must be confirmed with customer service staff prior to shipment.

Inverter compatibility

The V19 firmware includes the protocols used by mainstream home-storage inverters: Pylontech CAN, Deye/Sunsynk, Growatt, Voltronic/Axpert, Luxpower, SRNE, MUST, Goodwe and Sofar, and Victron systems through a Cerbo GX over CAN. The inverter must be set to the protocol that matches its battery communication setting.

If you are not sure which protocol your inverter expects, send us the inverter brand and model with your inquiry and we will confirm compatibility before you order.

Installation notes for 300A builds

• Size cables and fuses for continuous 300A, not for peak current. As a rule of thumb, 2/0 AWG (70mm²) or larger cable and a 350–400A Class T fuse — confirm against the manual and your local code.
• Leave clearance around the heatsink; 300A builds generate noticeable heat at sustained loads.
• Torque the main terminals to spec and re-check after the first thermal cycle.
• Set the inverter’s battery protocol to match the BMS before the first full charge cycle.