How many batteries can be connected in series or parallel?

Max series is up to 51.2V (4 strings of 12.8V or 2 strings of 25.6V). Maximum parallel connections should not exceed 4 units.

How to judge if the battery is fully charged without a light?

The BMS prohibits charging when full. Use a clamp ammeter to detect no charging current, indicating the battery is fully charged.

How long does it take to charge?

Charging time depends on the current. Charging at 0.5C fills the battery in about 2 hours.

Can this battery replace lead-acid batteries?

Yes, it can replace lead-acid battery packs up to 48V, provided the maximum output current/power meets system requirements.

What is the IP rating for waterproofing?

The standard rating is IP55. IP68 is available for customization.

Smart BMS Lithium Battery (4kWh/8kWh) – Long-Lasting Power for Cleaning Equipment

Name: Smart BMS Lithium Battery (4kWh/8kWh) – Long-Lasting Power for Cleaning Equipment
Brand: Shenzhen Everexceed Industrial Co., Ltd.
SKU: 2208874405

Guangdong, ChinaShenzhen Everexceed Industrial Co., Ltd.

US$799.00-999.00

1,000 Pieces

Product profile

Customization

Available

Type

Lithium-Ion Batteries, Lithium-Ion Battery Pack

Connection Mode

Series Connection

Rechargeable

Chargeable

Discharge Rate

High Discharge Rate, Low Discharge Rate

Size

Small

Accessories Type

Battery

Rated Capacity

100MAH～500MAH

Standard Voltage

>12V

Usage

UPS, Lighting, Solar/Telecom, Marine Yacht Boats

Electrolyte

Li-ion

Nominal Voltage

12V 24V

Shape

Square Battery

Installation

Packaged

Certificates

ISO / CE/ Dekra/IEC

Design Life

12 Years

Battery Size

522X240X220mm

Battery Voltage

12V

Color

Black/Blue

Battery Type

Ldp 12-314/ Ldp 24-314

Transport Package

Cartonboxor Wooden Pallets

Specification

522x268x220mm

Trademark

EverExceed

Origin

Shenzhen, China

HS Code

8507802000

Production Capacity

3500000kah/Year

Key features

Fast Charging Capability: Accepts up to 1C continuous charging amps, fully charging within 1-3 hours.

Smart BMS Monitoring: Monitor data and manage parameters via mobile APP for intelligent control.

Superior Safety Design: Epoxy resin insulation, flame-retardant ABS, and EVA foam for shock resistance.

High Round-Trip Efficiency: Lithium iron phosphate chemistry ensures effective storage and usage of solar energy.

Long Design Life: 15-year design life with cycle life reaching up to 6000 times.

Flexible Customization: Customizable nominal voltage, shape, color, and certificates like ISO/CE.

Versatile Application: Suitable for UPS, solar systems, RVs, yachts, and cleaning equipment.

Company profile

High Repeat Buyers ChoiceNational Award receivedImporters and ExportersQuality Assurance

Shenzhen Everexceed Industrial Co., Ltd.

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: 15 Years CertifiedNearest Port: Shenzhen PortAverage Response Time: ≤2.42h

AI-Powered supplier vetting

SummaryThe supplier operates in rectifiers, inductors, distribution switchgear, energy-storage services, charging piles, battery parts, and related transmission equipment. It demonstrates documented quality-control, complaint-handling, and corrective-action procedures, ISO9001:2015 and ISO14001 certification, RoHS capability, 3D design, ODM/OEM, and broad customization services. It reports new-product activity within the past year and one national science and technology progress award. Production-related evidence includes laser welding and automatic wire cutting equipment, two quality inspectors, standardized finished-product inspection, inventory capability, and one-month lead times in both peak and off-season periods. However, it lacks a valid manufacturing-capacity contract with affiliated subcontractors, overseas warehouses, showrooms, agents, or branches, and has no available SDK. Financial records are identified by year but contain no performance values, so financial credibility cannot be assessed....

Supplier typeThe supplier’s stated business scope covers manufacturing and sales of rectifiers, inductors, distribution switchgear, battery parts, charging-related equipment, and transmission equipment, as well as energy-storage technology services and related research and development. This supports classification as a diversified manufacturer and technology/service provider in electrical and energy-storage equipment.

CertificationsThe supplier reports ISO9001:2015 and ISO14001 certifications, along with RoHS and other product or sustainability certification capabilities. These explicitly support recognized quality and environmental management credentials, although the specific scope and validity details of the additional certifications are not provided.

After-Sales capabilityThe supplier has documented and followed procedures for corrective and preventive actions and customer complaints, plus inventory capability and written supplier-service assessment procedures. However, it reports no overseas warehouse, showroom, agent, or branch, indicating that documented support exists but overseas physical service coverage is limited.

R&D capabilityThe supplier provides 3D software design, ODM, and broad R&D customization services, and reports having launched new products within the past year. One national science and technology progress award is also reported, although no SDK is available, which limits evidence of software-development integration.

Production capacityProduction evidence includes laser welding and automatic wire cutting equipment, two quality inspectors, standardized finished-product inspection instructions, inventory capability, and one-month average lead times in both peak and off-season. A stated lack of a valid manufacturing-capacity contract with affiliated subcontractors is a documented production-governance weakness, but the available evidence still confirms operational manufacturing capability.

Customization capabilityThe supplier explicitly supports customization from samples, designs, full customization, minor customization, flexible customization, 3D software design, and ODM services. This is broad, direct evidence of capability across multiple customization routes.

Client casesThe supplier reports OEM service for well-known brands and participation in the INTERSOLAR EUROPE offline trade show, with overseas service offered in Italy. These indicate some brand-serving and market-exposure experience, but no customer names, project details, order history, or performance outcomes are provided.

Product Q&A

Q:What is the battery type and cell structure?

We use lithium iron phosphate batteries. For capacities below 50Ah, cylindrical cells are used for flexibility. For capacities above 50Ah, large-capacity square cells are used to ensure consistency.

Q:Does the battery have a BMS and what protections are included?

Yes, it has a built-in BMS with overcharge, over discharge, over current, over temperature, under temperature, and short circuit protection. Triggered protections disable specific functions (e.g., overcharge prohibits charging but allows discharge).

Q:What is the design life and cycle life?

The battery design life is 15 years, and the cycle life can reach 6000 times.

Q:What charger should be used?

It is recommended to use a lithium iron phosphate charger. We provide matching chargers: ECP series for low-power and ECA series for high-power applications.

Q:What is the recommended maximum charging current?

For LDP series small-capacity batteries, the recommended charging current is 0.5C.