AmpereX
Battery DatasheetEnergy CenterUse Cases
Featured

JKBMS JK-BD4A20S4P Smart Active Balance BMS

View more JK (Jikong BMS) products

SKU: JK-BD4A20S4P

AED 140

AED 142

In Stock15 in Pakistan stock
Get UAE PriceQuick Inquiry
  • Genuine productVerified stock
  • Fast dispatchNationwide delivery
  • Technical supportExpert guidance
  • Warranty supportAmpereX backed
New Arrival

2 years warranty included

Key specifications

Voltage

8S-20S

Capacity

40A

Type

Li-ion/LiFePO4/LTO

Category

JK BMS

Warranty

2 years

Brand

JK (Jikong BMS)

Overview

What it is: Intelligent Maintenance, Compact Efficiency: The Precision 40A Shield for 48V and 60V Lithium Packs. The JK-BD4A20S4P is a professional-grade Smart BMS for 8S to 20S LiFePO4, Li-ion, and LTO configurations with 40A continuous discharge, 0.4A active balancing, and integrated Bluetooth — ideal for e-bikes, 60V electric scooters, and light residential backup power.

Who it's for: Ideal for installers, integrators, and end users who need a verified 8S-20S, 40A, Li-ion/LiFePO4/LTO component for BMS JK BD Series in Pakistan.

  • Genuine stock with traceable SKU and published specifications
  • Pre-sales compatibility guidance from AmpereX specialists
  • 2 years warranty support through AmpereX

Product description

Precision-Balanced Performance with JK-BD4A20S4P The JK-BD4A20S4P provides a sophisticated management layer for your lithium battery investment. Designed for reliability and cool operation, it ensures that your battery bank operates at peak efficiency by preventing cell voltage drift. Its 0.4A active balancer works continuously to redistribute energy between cells, making it far more effective than traditional passive balancing boards that simply waste energy as heat. Core Advantages: 0.4A Active Energy Transfer: By actively moving charge from higher-voltage cells to lower-voltage ones, this BMS keeps your pack perfectly matched. This prevents "cell runners" from triggering premature cutoff and significantly extends the cycle life of your cells. Optimized for 48V & 60V: Whether you are building a 16S LiFePO4 solar wall or a 20S Li-ion high-torque scooter pack, this BMS offers a tailored fit for these popular mid-voltage architectures. Steady 40A Continuous Output: Optimized for low heat generation, it safely handles constant 40A loads, making it perfect for motor controllers and small inverters up to 1500W-2000W. Comprehensive App Control: Use the JK BMS App via Bluetooth to monitor State of Charge (SOC), individual cell health, and real-time current. Customize your protection limits for overcharge, over-discharge, and temperature on the fly. Technical Specifications: Cell Support: 8S to 20S (LiFePO4 / Li-ion / LTO) Continuous Current: 40A Peak Discharge: 60A Active Balancing: 0.4A (Energy Transfer) Connectivity: Integrated Bluetooth, supports external RS485/CAN/GPS modules.

Specifications

22 technical data points grouped for quick scanning

Voltage
8S-20S
Capacity
40A
Balance Current
0.4A
Continuous Charge Current
40A
Continuous Discharge Current
40A
Maximum Discharge Current (MAX 2min)
60A

Weight
0.50 kg
Communication
Bluetooth, RS485

Key features

Why customers choose AmpereX for this product

AmpereX supplies reliable, quality-checked Li-ion/LiFePO4/LTO products in Pakistan — not just a listing, but verified stock with clear specifications, responsive support, and warranty options you can trust.

  • Authentic products from trusted brands with traceable SKUs
  • Quality-focused sourcing suited to Pakistani power conditions
  • Pre-sales guidance to match voltage, capacity, and application
  • After-sales support, warranty assistance, and replacement help

This 8S-20S · 40A · Li-ion/LiFePO4/LTO unit is listed for BMS JK BD Series with full technical details below.

Compatibility & related links

Explore related categories, brand ranges, and alternative products.

FAQs

Common questions about JKBMS JK-BD4A20S4P Smart Active Balance BMS | 40A Continuous Discharge | 0.4A Active Balancer | 8S-20S LiFePO4/Li-ion/LTO, availability in Pakistan, and buying from AmpereX.

What is the JKBMS JK-BD4A20S4P Smart Active Balance BMS | 40A Continuous Discharge | 0.4A Active Balancer | 8S-20S LiFePO4/Li-ion/LTO?
Intelligent Maintenance, Compact Efficiency: The Precision 40A Shield for 48V and 60V Lithium Packs. The JK-BD4A20S4P is a professional-grade Smart BMS for 8S to 20S LiFePO4, Li-ion, and LTO configurations with 40A continuous discharge, 0.4A active balancing, and integrated Bluetooth — ideal for e-bikes, 60V electric scooters, and light residential backup power.
Who should buy the JKBMS JK-BD4A20S4P Smart Active Balance BMS | 40A Continuous Discharge | 0.4A Active Balancer | 8S-20S LiFePO4/Li-ion/LTO?
This product suits buyers who need a dependable 8S-20S, 40A, Li-ion/LiFePO4/LTO solution for BMS JK BD Series use in Pakistan. AmpereX helps you verify compatibility with your inverter, UPS, solar setup, or vehicle before purchase.
Is the JKBMS JK-BD4A20S4P Smart Active Balance BMS | 40A Continuous Discharge | 0.4A Active Balancer | 8S-20S LiFePO4/Li-ion/LTO available in Pakistan through AmpereX?
It is currently shown as in stock on AmpereX.pk. Confirm final availability and delivery timing on WhatsApp or by phone before ordering. AmpereX delivers battery products nationwide and provides product guidance in English and Urdu-friendly support channels.
Why buy the JKBMS JK-BD4A20S4P Smart Active Balance BMS | 40A Continuous Discharge | 0.4A Active Balancer | 8S-20S LiFePO4/Li-ion/LTO from AmpereX instead of an unknown seller?
AmpereX focuses on genuine products, transparent specifications, and ongoing customer support — including help choosing the right model, warranty coordination, and after-sales assistance. You get a specialist battery supplier, not just a one-time transaction.
What warranty comes with the JKBMS JK-BD4A20S4P Smart Active Balance BMS | 40A Continuous Discharge | 0.4A Active Balancer | 8S-20S LiFePO4/Li-ion/LTO?
This listing includes 2 years warranty coverage as stated on the product page. AmpereX supports warranty claims and can advise on proper use, charging, and maintenance to protect product life.
What are the key specs of the JKBMS JK-BD4A20S4P Smart Active Balance BMS | 40A Continuous Discharge | 0.4A Active Balancer | 8S-20S LiFePO4/Li-ion/LTO?
Key published specs include 8S-20S voltage and 40A capacity (Li-ion/LiFePO4/LTO). See the specifications table on this page for complete technical data before ordering.