JK BMS V19 (JK-PB2A16S20P) 24V/48V with Smart Active Balancer
for LiFePO4, Li-Ion & LTO Batteries (8S/16S, 100A/150A/200A)
$184.40$123.99
I. Product Overview
Power your home energy storage or DIY battery projects with the JK BMS V19—an advanced smart battery management system designed for reliability, precision, and long-term performance. Equipped with active balancing technology and seamless connectivity, it is ideal for LiFePO4, Li-ion, and LTO batteries. Whether building a home backup power system or optimizing a renewable energy setup, it delivers balance, protection, and connectivity to keep batteries running at their best, backed by a proven patent and industry certifications.
II. Product Parameters and Specifications
Feature | Details |
|---|---|
Model | JK BMS V19 |
Compatible Configurations | 8S (24V) and 16S (48V) |
Supported Battery Types | LiFePO4, Li-ion, LTO (lithium iron phosphate, ternary lithium, lithium titanate) |
Charging/Discharging Current | Up to 200A |
Balancing Current | 2A (scalable to 2-10A) |
Cell Voltage Measurement Range | 1V-5V |
Voltage Measurement Accuracy | ±5mV |
Connectivity | Bluetooth (compatible with Android and iOS) |
Protection Functions | Overcharging, over-discharging, overcurrent, short circuit protection |
Certifications | CE, FCC |
Port Design | Common charge/discharge port (simplifies installation) |
III. Standard Configuration and Core Components
Core Components
Active Balancing Module: Equipped with a patented active balancing system (patent No.: ZL 2019 2 0479589.6) that uses supercapacitors for real-time energy transfer, ensuring cell balance.
Smart Monitoring Hardware: Precision voltage detection components (±5mV accuracy) to measure individual cell voltages and track battery status.
Connectivity Module: Bluetooth chip for seamless sync with mobile apps (Android and iOS), enabling real-time data transmission.
Protection Circuitry: Built-in safeguards against overcharging, over-discharging, overcurrent, and short circuits to prevent battery damage.
IV. Product Advantages
1. Advanced Active Balancing
Patented Balancing Technology: Uses 2A active balancing current (scalable to 2-10A) and supercapacitors for real-time energy transfer between cells. This maintains battery consistency, extends runtime, and slows aging—maximizing battery lifespan.
2. Broad Compatibility
Multi-Configuration Support: Works with 8S (24V) and 16S (48V) setups, adapting to different battery pack designs.
Multi-Battery Compatibility: Supports LiFePO4, Li-ion, and LTO batteries (lithium iron phosphate, ternary lithium, lithium titanate), eliminating the need for multiple BMS units.
3. Powerful Performance & Easy Installation
High Current Handling: Manages up to 200A charging and discharging currents, suitable for high-demand setups (e.g., home energy storage, off-grid systems).
Simplified Setup: Common charge/discharge port reduces wiring complexity, making installation quicker and more convenient.
4. Comprehensive Protection
All-Round Safety: Safeguards batteries against overcharging, over-discharging, overcurrent, and short circuits—critical for preventing damage and ensuring user safety.
5. Precision Monitoring & Smart Connectivity
Accurate Data Tracking: Measures individual cell voltages with ±5mV accuracy, providing reliable data on balance status, voltage, and remaining capacity.
Mobile App Integration: Syncs with Android/iOS apps via Bluetooth to display real-time battery status, balance progress, and alerts—check stats anytime, anywhere.
6. Durability & Certification
Long-Lasting Design: Engineered for stable performance even with frequent use, ensuring durability in long-term applications.
Industry Certifications: CE and FCC certified, meeting international standards for safety and quality.
7. Versatile Applications
Ideal for home energy storage systems, off-grid setups, DIY battery packs, and 3C digital applications—where reliability, efficiency, and battery lifespan are key.
The JK BMS V19 combines active balancing technology, broad compatibility, and smart features to enhance battery performance and longevity. Backed by a patent and certifications, it is a trusted choice for both household and DIY energy projects.s
Order Tracking
We will send you the invoice and shipping information via email.
Lead time: Lead time depends on whether the item is in stock at our warehouse outside of China. We’ll follow up with the shortest lead time we can secure for you.
Freight time when shipped from China:
Europe: 7-30 days
Africa: 25-40 days
Asia: 6-20 days
North America: 7-25 days
South America: 30-90 days
Australia: 20-30 days
Our services
Extra quality, proven compatibility and on-time delivery.
Extended Warranty
Need confidence in quality?
We are direct distributor of the manufacturers, and are able to provide a longer warranty period by extra quality control processes.
One Stop Solution
Feeling a headache for components compatibility? Our all-in-one battery kit saves your time!
Plus, we offer DDP shipping terms, you don't need to worry about import tax!
Too much time waiting for your battery kit to arrive? Our battery kits might be in stock next street!
Address: Julianowska 37-D2, 05-500 Piaseczno Poland
On-time Fulfillment
Here's what our customers say
“Took delivery of 2,000 pcs EVE 15Ah last week—every pallet spot-on 3.29 V, 0.3 mΩ IR matched within spec. QC spot-check passed 100 %. Already pre-sold 1,200 to our OEM scooter guys; zero returns so far. Re-ordering 5,000 next quarter—solid margin, reliable supply.”
- Mike O’Donnell
“Every day, they strive to improve their service to the clients by developing the right blend of technology and creativity to make sure every job done is done as efficiently as possible.”
- Brian Moten
Frequently asked questions
What is BatteryKitStore.com?
BatteryKitStore.com is a market place for battery DIY lovers to shop for the battery kits they need. We are passionate about new energy solutions.
How does your product/service work?
We offer battery kits products that helps DIY lovers to get their work done, including the materials such as BMS, battery cells, housing structures, fixtures, etc., and we also offer the tools they need such as the testing equipment or the measurement tools. We try to keep our process as neat as possible for you.
How much does it cost?
Our pricing varies depending on the quantity you buy, the inventory location and the upper stream price fluctuation. We offer a variety of options to fit your needs and budget. Please contact us for more information.
Do you offer cash on delivery?
Unfortunately, we don't currently offer cash on delivery. However, we do offer paypal which might be helpful.
How can I contact you?
You can reach us by Email: support@batterykitstore.com. We are always happy to answer your questions.
What does your extended warranty cover?
Extended warranty starts from the date of successful delivery. It covers manufacturing defects in new battery cells only.
How do you assure the quality?
Before shipping, we thoroughly test each cell for voltage, resistance, and appearance to ensure proper function.
How to inspect the battery kits after delivery?
Test your cells within 7 days of arrival. If any issues are found, contact us immediately for a refund or replacement.
Who should buy these battery kits?
These battery kits are for experienced DIY users only. If you’re not familiar with lithium battery safety, we recommend purchasing a pre-assembled battery pack instead.
Is voltage balancing required before assembly?
Yes, battery cells must be balanced (same voltage) before assembly. Do NOT Mix Cells!
o Use same brand & capacity cells in your battery pack.
o Mixing different brands/capacities/voltage voids warranty.
What should I be aware of when using the BMS?
Use the Correct BMS (Battery Management System) and assemble it correctly according to the instructions.
Incorrect BMS wiring, Missing BMS, Charger failures due to assembly errors voids warranty.
About us
Battery Kit Store, hatched from the high technology and strict quality control management from EVE Energy, is dedicated to providing high-end user friendly energy solutions. Our management team, composed of experts in quality control for batteries, power systems, and battery management systems (BMS), is committed to delivering top-notch products.
We share a unified vision of promoting a cleaner and more sustainable planet for future generations. By focusing on advanced technology and quality, we aim to set new standards in the energy market, ensuring that our customers benefit from reliable and efficient energy solutions. At Battery Kit Store, we believe that innovation and responsibility go hand in hand, paving the way for a greener tomorrow.
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