Which Battery BMS should I choose for my application?

Just tell us your relative voltage, cells, current (A), or equipment information. We will confidently choose the most suitable BMS to meet your requirements.

What are the main functions of this BMS?

Main functions include over-charge protection, over-discharge protection, over-current protection, short-circuit protection, temperature protection, and automatic voltage balance.

What is the warranty period for this product?

We provide a one-year warranty for this BMS product.

Lws 4s 4A 14.8V Li-ion Battery BMS

Name: Lws 4s 4A 14.8V Li-ion Battery BMS
Brand: Shenzhen Li-ion Battery Bodyguard Technology Co., Limited
SKU: 921710655

Guangdong, ChinaShenzhen Li-ion Battery Bodyguard Technology Co., Limited

US$3.50

6-99 Pieces

US$2.80

100-999 Pieces

US$2.60

1,000-9,999 Pieces

US$1.80

10,000+ Pieces

Sample price:US$3.50/piece.Request sample

Product profile

Customization

Available

BMS Type

12.8V Li-ion/Lithium Ion/LiFePO4 Battery BMS

Charging Current

Model NO.

LWS-4S4A-025

Discharging Current

Type Voltage

14.8V

Type Charging Voltage

DC:14.4V Cc/CV

PCM Size

L60*W350*T3mm

Short Circuit Protection Function

Cut Load

Over Current Protection

7.5±1A

Over Charge Protection

4.35V±0.025V

Over Discharge Protection

2.40V±0.08V

Temperature Protection

Dielectric

Fr-4

Application

Consumer Electronics

Testing Service

100%E-Testing

Transport Package

Anti-Static Bag Packaging/ Carton Packaging

Specification

L279*W200*T38mm

Trademark

LWS

Origin

China

HS Code

8536300000

Production Capacity

50000 Pieces /Months

Key features

OEM/ODM Customization: Supports full customization of PCB size, voltage (1S-35S), and current based on customer requirements.

Smart Balance Function: Automatically balances cell voltage to improve battery performance and extend cycle life.

High-Quality Components: Uses imported ICs from Japan, MOSFETs from USA, and components from Samsung for reliability.

Comprehensive Protection: Protects against over-charge, over-discharge, over-current, short-circuit, and temperature issues.

Strict Quality Testing: 100% E-testing passed, including 1.2m drop test, short circuit, and overcharge tests.

Wide Application Scope: Suitable for solar, LED lights, e-bikes, emergency UPS, RVs, and home energy storage.

No MOQ Requirement: No minimum order quantity; flexible support for various capacities and sizes per customer needs.

Certified Quality: ISO9001/ISO14001/CE/ROHS certified, ensuring high quality and environmental safety.

Company profile

Self-brandedPatents AwardedYears of Export ExperienceHigh Repeat Buyers Choice

Shenzhen Li-ion Battery Bodyguard Technology Co., Limited

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 12 years CertifiedNearest Port: Shenzhen Port, Hong Kong PortAverage Response Time: ≤6.10h

AI-Powered supplier vetting

SummaryThe supplier demonstrates strong capabilities in quality control, research and development, and customization, with a focus on innovation and customer satisfaction. However, it lacks overseas warehousing and showroom services. Financial data is available, but further details on certification and customer cases are missing.

Supplier typeThe supplier is an active and reliable Battery BMS Manufacturer focused on quality and service excellence.

After-Sales capabilityThe supplier has procedures for handling customer complaints and provides after-sales technical support.

Financial creditFinancial data is available for the past three years, indicating stability in financial capacity and cash flow.

R&D capabilityThe supplier has R&D capabilities, offers ODM and OEM services, and has introduced new products in the past year.

Production capacityThe supplier has a comprehensive range of facilities for manufacturing processes.

Customization capabilityThe supplier offers flexible customization services and 3D software design capabilities.

Product Q&A

Q:How many Ampere protection circuit boards should I choose?

It depends on your load power, such as electric motor power. Please contact sales or technical support before buying.

Q:What is the distinction between same port wiring and different port wiring?

For different port wiring, the cathode of charger and load is different. For same port wiring, the cathode is the same, and charging current equals discharge current.

Q:What is the distinction between balance and unbalance function?

The equilibrium function discharges high-voltage cells with resistors to match low-voltage cells, ensuring consistent voltage and improving overall battery performance.

Q:Do you have a Minimum Order Requirement (MOQ)?

No, we do not have an MOQ. We can provide various capacities and sizes per your requirements, and ODM/OEM is welcome.

Q:What is your term of payment?

We accept PayPal and T/T (Telegraphic Transfer).