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BMS LFP 4S 6A (SLCT) 12.8V LiFePO₄ Battery Protection Board for 4S Battery Pack

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esigned specifically for 4S (12.8V) LiFePO₄ battery packs
Supports 6A continuous and 8A peak current
Built-in overcharge protection
Integrated over-discharge protection

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SKU: RY1462 Categories: Batteries BMS and Accessories, Batteries and Accessories

Description

BMS LFP 4S 6A (SLCT) – Reliable Battery Protection for 12.8V LiFePO₄ Battery Packs

The BMS LFP 4S 6A (SLCT) is a high-quality Battery Management System (BMS) engineered for 4S (4-cell) LiFePO₄ battery packs with a 12.8V nominal voltage and 14.6V maximum charging voltage. Designed to deliver 6A continuous current and up to 8A peak current, this compact protection board ensures safe charging and discharging by continuously monitoring each cell.

The integrated protection circuitry safeguards your battery pack against overcharge, over-discharge, overcurrent, and short circuits, helping extend battery life and improve overall system safety. Its ultra-slim PCB design makes it ideal for compact battery packs used in solar lighting, robotics, UPS systems, and portable electronic devices.

Whether you’re building a custom LiFePO₄ battery pack or replacing an existing BMS, this module offers dependable protection with easy installation and reliable performance.

Key Features

Designed specifically for 4S (12.8V) LiFePO₄ battery packs
Supports 6A continuous and 8A peak current
Built-in overcharge protection
Integrated over-discharge protection
Overcurrent protection with automatic recovery
Short circuit protection for enhanced safety
Compact, lightweight, and ultra-slim PCB
Clearly labeled solder pads for easy wiring
Compatible with 18650, pouch, and prismatic LiFePO₄ cells
Reliable battery protection for DIY and commercial applications

Technical Specifications

Parameter	Specification
Model	BMS LFP 4S 6A (SLCT)
Battery Chemistry	LiFePO₄ (Lithium Iron Phosphate)
Battery Configuration	4S (4 Cells in Series)
Nominal Voltage	12.8V
Maximum Charging Voltage	14.6V
Continuous Current	6A
Peak Current	Up to 8A (Short Duration)
Overcharge Protection Voltage	3.75V ± 0.05V per Cell
Over-discharge Cutoff Voltage	2.0V ± 0.05V per Cell
Overcurrent Protection	Yes (Auto Recovery)
Short Circuit Protection	Yes
Cell Balancing	Not Supported
PCB Size	Approx. 50 × 12 mm
Connection Terminals	B-, B1, B2, B3, B4, P-
Weight	Less than 6 g

Protection Functions

Overcharge Protection

Automatically disconnects charging when any cell exceeds the safe voltage limit, protecting the battery from damage.

Over-discharge Protection

Cuts off the output before the battery voltage drops below the safe operating range, increasing battery lifespan.

Overcurrent Protection

Prevents excessive current flow and automatically restores normal operation once the fault is removed.

Short Circuit Protection

Instantly disconnects the battery during short circuit conditions to protect both the battery pack and connected devices.

Applications

The BMS LFP 4S 6A (SLCT) is suitable for a variety of low-power LiFePO₄ battery applications, including:

Solar-Powered LED Lighting Systems
DIY 12.8V LiFePO₄ Battery Packs
Portable Power Banks
Fishing Lamps and Outdoor Battery Packs
Rechargeable Flashlights and Lanterns
Portable UPS Systems
Robotics Projects
IoT and Embedded Systems
Battery Backup Units
Small Electric Mobility Devices

Package Includes

1 × BMS LFP 4S 6A (SLCT) Battery Protection Board

Why Choose This BMS?

Optimized for 4S 12.8V LiFePO₄ batteries
High reliability with multiple built-in protection features
Compact PCB fits space-constrained battery enclosures
Easy installation with clearly marked solder pads
Improves battery safety, performance, and service life
Suitable for DIY enthusiasts, engineers, manufacturers, and repair professionals

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Return & Refund

Refund and Returns Policy

Our refund and returns policy lasts 10 days from the date of delivery. If 10 days have passed since your purchase, we can’t offer you a full refund or exchange.

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.

Several types of goods are exempt from being returned.

Gift cards
Downloadable software products

To complete your return, we require a receipt or proof of purchase.

Please do not send your purchase back to the manufacturer.

Partial Refund

There are certain situations where only partial refunds are granted (if applicable)
- Any item not in its original condition, is damaged or missing parts for reasons not due to our error.
- Any item that is returned more than 10 days after delivery

Refunds

Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.

If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.

Late or missing refunds

If you haven’t received a refund yet, first check your bank account again.

Then contact your credit card company, it may take some time before your refund is officially posted.

Next contact your bank. There is often some processing time before a refund is posted.

If you’ve done all of this and you still have not received your refund yet, please contact us at [email protected].

Late or missing refunds (if applicable)

Once refund is initiated you will get the refund initiated mail. after that wait for minimum 3 days.
Then contact your credit card company, it may take some time before your refund is officially posted.
Next, contact your bank. There is often some processing time before a refund is posted.
If you’ve done all of this and you still have not received your refund yet, please contact us at [email protected]

Sale Items

Only regular priced items may be refunded. Sale items cannot be refunded.

Exchanges

We only replace items if they are defective or damaged(during shipping) please take the photo if package is tempered or damage at the time of receiving goods . If you need to exchange it for the same item, send us an email at [email protected] and send your item to: M/S Rytronics Enterprises, Plot GH-05B Greater noida west Sector, 201306 (UP).

Shipping returns

To return your product, you should mail your product to: M/S Rytronics Enterprises, Plot GH-05B, Greater noida west Sector, 201306 (UP).

You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund.

Depending on where you live, the time it may take for your exchanged product to reach you may vary.

If you are returning more items value more then Rs 2000, you may consider using a trackable shipping service or purchasing shipping insurance. We don’t guarantee that we will receive your returned item.