---
product_id: 631392471
title: "JKBMS Smart BMS 8S-24S 24V-72V 150A 2A Active Balance BMS Built-in Bluetooth with RS485 PCB Battery Protection Board for LiFePO4 Li-ion LTO Battery Pack (JK-B2A24S15P)"
brand: "jkbms"
price: "182779CFA"
currency: XOF
in_stock: true
reviews_count: 7
category: "Jkbms"
url: https://www.desertcart.sn/products/631392471-jkbms-smart-bms-8s-24s-24v-72v-150a-2a-active
store_origin: SN
region: Senegal
---

# Active 2A cell balancing Built-in Bluetooth & RS485 150A max current JKBMS Smart BMS 8S-24S 24V-72V 150A 2A Active Balance BMS Built-in Bluetooth with RS485 PCB Battery Protection Board for LiFePO4 Li-ion LTO Battery Pack (JK-B2A24S15P)

**Brand:** jkbms
**Price:** 182779CFA
**Availability:** ✅ In Stock

## Summary

> ⚡ Power Smarter, Last Longer — The BMS That Works as Hard as You Do

## Quick Answers

- **What is this?** JKBMS Smart BMS 8S-24S 24V-72V 150A 2A Active Balance BMS Built-in Bluetooth with RS485 PCB Battery Protection Board for LiFePO4 Li-ion LTO Battery Pack (JK-B2A24S15P) by jkbms
- **How much does it cost?** 182779CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/631392471-jkbms-smart-bms-8s-24s-24v-72v-150a-2a-active)

## Best For

- jkbms enthusiasts

## Why This Product

- Trusted jkbms brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Universal Compatibility:** Optimized for LiFePO4, Li-ion, and LTO batteries, perfect for EVs, scooters, and power banks—future-proof your power solutions.
- • **Unrivaled Battery Safety:** Comprehensive protection against overcharge, overdischarge, overcurrent, short circuits, and temperature extremes keeps your investment bulletproof.
- • **Plug & Play with Expert Support:** Compact design with clear manual and 1-year dedicated after-sales support ensures hassle-free installation and peace of mind.
- • **Active Balancing for Maximum Capacity:** 2A active equalization extends battery life and recovers up to 20% more capacity by keeping cells perfectly balanced.
- • **Smart Connectivity at Your Fingertips:** Seamlessly monitor and control your battery pack via JK BMS app on Android/iOS with built-in Bluetooth and RS485 support.

## Overview

The JKBMS Smart BMS JK-B2A24S15P is a compact, high-performance battery management system supporting 8S-24S LiFePO4, Li-ion, and LTO packs from 24V to 72V with 150A max current. Featuring 2A active cell balancing, built-in Bluetooth and RS485 connectivity, it offers real-time monitoring and control via a dedicated mobile app. Designed for enhanced safety with multi-layer protection and versatile applications including EVs and power banks, it delivers extended battery life and up to 20% capacity recovery. Backed by clear documentation and 1-year support, it’s the smart choice for professional-grade battery management.

## Description

desertcart.com: JKBMS Smart BMS 8S-24S 24V-72V 150A 2A Active Balance BMS Built-in Bluetooth with RS485 PCB Battery Protection Board for LiFePO4 Li-ion LTO Battery Pack (JK-B2A24S15P) : Electronics

Review: Works great, no problems and smaller size. - This BMS has been preforming great for months now. Not one problem and it keeps the cells balanced. I like the small size and it still preforms as well as the larger BMS with the extra boards. Much easier to place in a battery build and has a screen to see what it’s doing, plus the app to view or change it all. I wondered about the smaller cables, and I wish they were a little longer. But it’s fine because I would always need to add more length anyway. And these never heat up. Great to also have 2 temp probes also. I liked this BMS so much I just bought another one for the next battery build. Great BMS!!
Review: Easy to install, operate, and understand. - Update 2024-12-14: Actually looking like top balancing will recover 20% capacity. Heater puzzle solved. See below for info from JK BMS. The scene: After 6 years, converting two (24v) 8S 200Ah bottom balanced LFP cells to a single 16S 200Ah 52.1V battery. Installed BMS 6 days ago. The good: Super simple install. Connected to app immediately. Clear and easy to read manual (yes, really!) The great: Chugging away at top balancing the pack. At 2A, and as poorly balanced at the top these cells are, it’s made decent progress. Looking like I’ll be able to reclaim an easy 10% MORE capacity from these cells than I’ve ever had. The “Meh”: Can’t figure out WHEN the heater port will activate. CAN cable was missing. Only JK protocol supported CAN menu. Over All Grade: A+ Would I buy it again? Yep, as a matter I already have. If I figure out how to trigger the heater, I’ll update this. If I figure out how to get this to talk to my Victron gear, I’ll update this. I’ve played with pretty every setting. It works as documented. 2024-12-17 JK BMS sent info: Heating Function Activation Conditions: The heating function for charging will be activated when Condition 1 is met, along with Condition 2 or Condition 3. Condition 1: The battery temperature is below the charging low-temperature protection threshold. Condition 2: Heating is manually activated via the APP, without checking the charger status. Once the low-temperature condition is met, heating will begin, which will consume battery power. Condition 3: The charger is detected as being plugged in. This function is related to the hardware of the protection board and the charger, so please confirm the technical specifications before ordering. Heating Film Selection: Step 1: Determine the maximum battery pack voltage. For example, a 20-series LiFePO4 battery has a maximum voltage of 20 × 3.6V = 72V, while a 24-series LiFePO4 battery has a maximum voltage of 24 × 3.6V = 86.4V. Step 2: Calculate the resistance value of the heating film. The resistance value is calculated by dividing the maximum total voltage by the current: Resistance (Ω) = Maximum Total Voltage ÷ 3A. For example, 72V ÷ 3A = 24Ω. Based on this, select a heating film with a resistance close to this value. A suitable heating film specification would be 72V/24Ω/216W. Key Notes for Understanding: Condition 1 (Low-Temperature Protection): The heating function will only be triggered if the battery temperature drops below a certain threshold (often around 0°C to 5°C) to prevent damage to the battery and ensure it remains functional during cold weather conditions. Condition 2 (Manual Activation via APP): This condition allows the user to manually activate the heating function through an app, which will begin heating as soon as the low-temperature condition is met. However, this will drain battery power, which is important to consider in terms of overall efficiency. Condition 3 (Charger Detection): The heating function is also dependent on detecting whether the charger is plugged in. This ensures that the battery is being charged during the heating process, avoiding unnecessary power drain when not connected to a power source. Heating Film Specifications: The heating element (heating film) needs to be carefully selected based on the battery's total voltage and required current. The resistance of the heating film plays a key role in determining how efficiently the heat is generated without exceeding the system's power limits.

## Features

- Enhanced Safety: Safeguard your battery with protection against overcharging, overdischarging, overcurrent, short circuits, and temperature extremes. JKBMS Active Equalization extends battery life and enhances performance
- Easy Connection: Effortlessly manage your battery with JK BMS mobile app for Android and iOS. Bluetooth connectivity allows you to monitor status, adjust settings, and control charging/discharging from your device
- Wide Application: This versatile BMS works with Li-ion, LiFePO4, and LTO batteries. Ideal for electric vehicles,scooter, and power banks and so on, it offers seamless integration and top performance
- After-Sales Support: If you have any questions or concerns, please contact us through your order page. We are committed to providing assistance and ensuring your satisfaction with our 1-year support
- Packing List: Includes Smart BMS (JK-B2A24S15P) * 1,Wires (70cm) * 1,Switch (50cm) * 1,NTC (40cm) * 1,Operate manual * 1,(RS485 converter not included).Everything you need for setup and operation

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D17J36JC |
| Best Sellers Rank | #40,015 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #141 in Power Converters |
| Customer Reviews | 4.3 4.3 out of 5 stars (161) |
| Date First Available | April 9, 2024 |
| Item Weight | 15.2 ounces |
| Item model number | JK-B2A24S15P |
| Manufacturer | JKBMS |
| Product Dimensions | 6.38 x 4.02 x 0.8 inches |

## Product Details

- **Brand:** JKBMS
- **Color:** JK BMS
- **Input Voltage:** 72 Volts
- **Item Weight:** 0.95 Pounds
- **Item dimensions L x W x H:** 6.38 x 4.02 x 0.8 inches

## Images

![JKBMS Smart BMS 8S-24S 24V-72V 150A 2A Active Balance BMS Built-in Bluetooth with RS485 PCB Battery Protection Board for LiFePO4 Li-ion LTO Battery Pack (JK-B2A24S15P) - Image 1](https://m.media-amazon.com/images/I/61fBxtTPI0L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great, no problems and smaller size.
*by N***R on November 30, 2025*

This BMS has been preforming great for months now. Not one problem and it keeps the cells balanced. I like the small size and it still preforms as well as the larger BMS with the extra boards. Much easier to place in a battery build and has a screen to see what it’s doing, plus the app to view or change it all. I wondered about the smaller cables, and I wish they were a little longer. But it’s fine because I would always need to add more length anyway. And these never heat up. Great to also have 2 temp probes also. I liked this BMS so much I just bought another one for the next battery build. Great BMS!!

### ⭐⭐⭐⭐⭐ Easy to install, operate, and understand.
*by N***. on December 13, 2024*

Update 2024-12-14: Actually looking like top balancing will recover 20% capacity. Heater puzzle solved. See below for info from JK BMS. The scene: After 6 years, converting two (24v) 8S 200Ah bottom balanced LFP cells to a single 16S 200Ah 52.1V battery. Installed BMS 6 days ago. The good: Super simple install. Connected to app immediately. Clear and easy to read manual (yes, really!) The great: Chugging away at top balancing the pack. At 2A, and as poorly balanced at the top these cells are, it’s made decent progress. Looking like I’ll be able to reclaim an easy 10% MORE capacity from these cells than I’ve ever had. The “Meh”: Can’t figure out WHEN the heater port will activate. CAN cable was missing. Only JK protocol supported CAN menu. Over All Grade: A+ Would I buy it again? Yep, as a matter I already have. If I figure out how to trigger the heater, I’ll update this. If I figure out how to get this to talk to my Victron gear, I’ll update this. I’ve played with pretty every setting. It works as documented. 2024-12-17 JK BMS sent info: Heating Function Activation Conditions: The heating function for charging will be activated when Condition 1 is met, along with Condition 2 or Condition 3. Condition 1: The battery temperature is below the charging low-temperature protection threshold. Condition 2: Heating is manually activated via the APP, without checking the charger status. Once the low-temperature condition is met, heating will begin, which will consume battery power. Condition 3: The charger is detected as being plugged in. This function is related to the hardware of the protection board and the charger, so please confirm the technical specifications before ordering. Heating Film Selection: Step 1: Determine the maximum battery pack voltage. For example, a 20-series LiFePO4 battery has a maximum voltage of 20 × 3.6V = 72V, while a 24-series LiFePO4 battery has a maximum voltage of 24 × 3.6V = 86.4V. Step 2: Calculate the resistance value of the heating film. The resistance value is calculated by dividing the maximum total voltage by the current: Resistance (Ω) = Maximum Total Voltage ÷ 3A. For example, 72V ÷ 3A = 24Ω. Based on this, select a heating film with a resistance close to this value. A suitable heating film specification would be 72V/24Ω/216W. Key Notes for Understanding: Condition 1 (Low-Temperature Protection): The heating function will only be triggered if the battery temperature drops below a certain threshold (often around 0°C to 5°C) to prevent damage to the battery and ensure it remains functional during cold weather conditions. Condition 2 (Manual Activation via APP): This condition allows the user to manually activate the heating function through an app, which will begin heating as soon as the low-temperature condition is met. However, this will drain battery power, which is important to consider in terms of overall efficiency. Condition 3 (Charger Detection): The heating function is also dependent on detecting whether the charger is plugged in. This ensures that the battery is being charged during the heating process, avoiding unnecessary power drain when not connected to a power source. Heating Film Specifications: The heating element (heating film) needs to be carefully selected based on the battery's total voltage and required current. The resistance of the heating film plays a key role in determining how efficiently the heat is generated without exceeding the system's power limits.

### ⭐⭐⭐⭐⭐ Great product
*by T***R on December 23, 2025*

Fantastic product. Took me a while to build a battery and set up the BMS but worked like a charm and with the help of some great YouTube videos was able to complete the setting properly.

## Frequently Bought Together

- JKBMS Smart BMS 8S-24S 24V-72V 150A 2A Active Balance BMS Built-in Bluetooth with RS485 PCB Battery Protection Board for LiFePO4 Li-ion LTO Battery Pack (JK-B2A24S15P)
- JKBMS Accessory 4.3 Inch LCD Touch Screen Monitor with Switch for JK BMS LiFePO4 Li-ion Battery Protection Board

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-02-01*