JK Smart ESS BMS 8S-16S 150Amp (1A Active Balance)

The JK ESS 8S-16S 150 Amp is a smart energy-storage BMS made for LiFePO4, NMC and LTO battery systems. It combines 150A of continuous current, 1A active balancing, Bluetooth monitoring, a colour LCD and CAN and RS485 communication, so it can work with solar, inverter and backup batteries. Yati Infotech Solution Pvt. Ltd. supplies it from Noida to pack builders, installers and service workshops across India.

Product Overview

A home or business energy-storage battery runs every day, often for years, and it talks to an inverter that expects clear information from the pack. A basic protection board is not always enough for that job. An ESS-class BMS monitors the cells, controls the main current path and shares battery data with the rest of the system.

The JK Smart ESS BMS is built for stationary smart-energy uses. It supports eight to sixteen cells in series, so one board covers several pack sizes. It carries 150A of continuous current, which suits inverter batteries and scalable storage systems, and it offers active balancing, charge-current limiting and communication interfaces for inverter integration.

You will see this product searched under many names, including JK ESS, JK Smart ESS, JK ESS 8S 16S, 8S 16S JK ESS and JK ESS 8S 16S 150 Amp. They all point to the same board.

Key Features

• 8S to 16S compatibility for 24V to 48V class systems
• 150A continuous current for inverter batteries and storage systems
• 1A active balancing that moves energy between cell groups
• LiFePO4, NMC and LTO support
• RS485, parallel RS485 and CAN communication for inverter and system integration
• Bluetooth with mobile app monitoring
• Colour LCD for on-board status
• Charge-current limiting and parallel storage architecture
• Protection against overcharge, over-discharge, overcurrent, short circuit and temperature faults

Specifications

What Does 8S to 16S Mean?

The "S" stands for series. A pack with eight cells in series is 8S, and a pack with sixteen is 16S. This board supports any count from 8 to 16, and you set the active cell count and the chemistry for your finished pack.

Some common examples, using typical nominal cell voltages:

• 8S LiFePO4: about 25.6V, a 24V-class system
• 15S LiFePO4: about 48V
• 16S LiFePO4: about 51.2V, a 48V-class storage battery
• 13S NMC: about 48V

Your inverter must match the finished series count and the chemistry. Do not rely on a nominal label alone, and check the voltage limits on the datasheet.

What Does 1A Active Balancing Do?

In every pack, cells drift apart with use. Some hold more charge, some less. A passive BMS burns off extra energy from the fullest cells as heat. An active balancer moves charge from stronger cell groups to weaker ones instead.

The "1A" in the product name refers to the balancing current, which is how much energy the board can move between cells. A higher balancing current helps control voltage spread during normal operation, and it matters most near the top and bottom of the charge range.

Balancing has limits. It manages normal drift, but it cannot restore lost capacity or fix a loose busbar. Good cell matching and solid connections remain just as important.

Inverter Communication

For energy storage, communication matters as much as protection. The board offers RS485, parallel RS485 and CAN interfaces, so it can share battery information with a compatible inverter. Parallel RS485 also supports addressed communication when you build expandable battery banks.

Protocol choice is a separate question from the wiring. Before you plan an installation, check which protocol your inverter uses and confirm it works with this BMS. Your inverter's documentation is the best guide.

Bluetooth App and Colour LCD

The built-in Bluetooth connects the board to a mobile app for monitoring, and the colour LCD shows status on the board itself. Together they let you see cell voltages, total voltage, current, temperatures and alarms. That speeds up commissioning and makes fault-finding much simpler for installers.

Where You Can Use It

The JK ESS 8S 16S 150 Amp suits stationary storage and backup uses:

• Residential solar storage batteries
• Home ESS cabinets built from 8S to 16S modules
• Inverter and backup batteries in the 150A class
• Off-grid and hybrid solar systems
• Expandable parallel battery banks
• Battery assembly and service workshops

Planning a 150A Build

At 150A, the whole current path matters, not just the BMS. A 24V pack at 150A delivers about 3.6kW, and a 48V pack at 150A delivers about 7.2kW. Check these points before you build:

• Conductors and busbars: Size them for the full current, with some margin.
• Fuse or breaker: Add proper protection in the main current path.
• Terminals: Tighten them firmly, because loose joints create heat.
• Parallel banks: Keep cable lengths symmetrical and set pack addresses correctly.
• Capacity setting: Set a realistic pack capacity in the BMS, so state of charge reads accurately.

Installation and Commissioning Tips

• Set the chemistry and the series count to match your cell stack.
• With chargers and loads disconnected, check each cell group's voltage and connect the sampling harness in the correct order.
• Use insulated tools, and route communication wiring away from high-current cables.
• Start with a low charge and discharge current, and watch the app or LCD for voltage, current direction, temperatures and alarms.
• Confirm inverter communication before you raise the load.
• Check terminal temperature at full current, and look into any unusual heat straight away.
• Keep a record of your settings, including chemistry, series count, balance settings and inverter protocol.

Why Buy from Yati

Yati Infotech Solution Pvt. Ltd. is a manufacturer based in Noida, so you buy from a direct supplier. Bulk orders are welcome, which suits OEMs and pack builders. The same team supplies lithium cells, nickel strip, battery casings and other pack materials, so you can plan one order for the whole build.

Frequently Asked Questions

What is the JK ESS 8S-16S 150 Amp BMS?

It is a smart energy-storage BMS for 8S to 16S lithium packs, rated for 150A continuous current. The JK ESS board adds 1A active balancing, Bluetooth monitoring, a colour LCD and CAN and RS485 communication to a full set of protections.

What is the JK ESS BMS price in India?

The JK ESS BMS price in India is listed per piece on the product page, and rates improve with quantity. For a bulk quote on the JK Smart ESS board, send Yati your quantity.

What does the 1A mean in JK ESS 8S-16S-150 Amp (1A)?

It refers to the 1A active balancing current. That is how much energy the BMS can move between cell groups to control voltage spread. The 150A figure is the continuous current rating, which is a separate matter.

Which batteries and voltages does the JK ESS 8S 16S support?

It supports LiFePO4, NMC (Li-ion) and LTO packs from 8S to 16S, in the 24V to 48V system class. Set the chemistry and cell count to match your pack, and check the voltage limits against the datasheet.

Can the JK Smart ESS BMS talk to my inverter?

It offers CAN, RS485 and parallel RS485 interfaces for inverter integration. Whether it works with your inverter depends on the protocol your inverter uses, so check your inverter's documentation before you buy.

Is 150A enough for my battery bank?

It depends on your load. A 24V pack at 150A delivers about 3.6kW, and a 48V pack at 150A delivers about 7.2kW. If your inverter draws more, or you need extra headroom, plan a larger system or ask Yati for advice.

Where can I buy the 8S 16S 150 Amp JK ESS in India?

You can order from Yati Infotech Solution Pvt. Ltd. in Noida through the Yati Store, or message the team on WhatsApp. Bulk orders and shipping across India are available.

Get a Quote from Yati

Building solar or inverter storage batteries, or need ESS BMS boards in bulk? Add the JK ESS 8S-16S 150 Amp to your quote on the Yati Store, or send us your chemistry, series count and inverter details.