What are the customization options available?

Customization is available for color (Silver/Black), max output voltage, charging method, net weight, and input/output plug types (US, UK, AU, EU, etc.).

What is the warranty period for this product?

We provide a 2-year warranty for all our battery chargers, covering mechanical defects and performance issues.

How do I choose the right charger for my battery?

Selection depends on battery type, capacity, and application. Please provide your battery details, and our engineers will recommend the most suitable model or customize a solution.

SLA Battery Charger, Automatic 3 Steps Charging

Name: 36V 40A AGM / Gel / SLA Battery Charger, Automatic 3 Steps Charging
Brand: Danl New Energy Co., Limited
SKU: 704676721

Guangdong, ChinaDanl New Energy Co., Limited

US$199.00-258.00

1 Piece

Sample price:US$258.00/piece.Request sample

Product profile

Customization

Available

Rated Power

36V 2000W

Charging Current

36V 40A

Model NO.

VL3640

Input Voltage

160~250V

Type

Lead-Acid Battery Charger

Charging Type

Automatic Cc CV Floating

Principle

MCU Controlled Smart Charger

Color

Silver / Black

Max Output Voltage

44.1V / 44.4V

Charging Method

Automatic, Cc CV and Floating

Net Weight

6.5 Kg

Warranty

2 Years

Transport Package

Carton

Specification

330*150*90 mm

Trademark

VLDL

Origin

China

Production Capacity

1000PCS/Month

Key features

Smart 3-Step Charging: MCU controlled automatic CC, CV, and floating charging for lead-acid and lithium batteries.

High Efficiency Design: Advanced high-frequency switching technology with over 90% efficiency and isolated DC output.

Comprehensive Protections: Built-in safeguards against short circuit, over-voltage, over-temperature, and reverse polarity.

Portable Aluminum Build: Lightweight aluminum casing with forced ventilation, weighing only 6.5 kg for easy portability.

Wide Voltage Compatibility: Supports 110V or 230V AC input, 50/60Hz, insensitive to line voltage variations.

Customizable Options: Available customizations for color, max output voltage, charging method, and plug types.

2-Year Warranty: Comprehensive 2-year warranty coverage for all mechanical defects and performance issues.

Versatile Battery Support: Compatible with AGM, Gel, SLA, LiFePO4, and Li-MnO2 batteries across various voltages.

Company profile

Danl New Energy Co., LimitedGuangdong, China

CertifiedBusiness Type: Trading CompanyExport Year: 2008-06-02Nearest Port: Guangzhou, ShenzhenAverage Response Time: ≤10.19hTerms of Payment: T/T, PayPal, Western UnionInternational Commercial Terms(Incoterms): FOB, CIF, EXW

AI-Powered supplier vetting

SummaryDanl New Energy Co., Limited is identified as a China-based limited trading company headquartered in Guangzhou, with stated manufacturing operations in Nansha. Its business focuses on smart battery chargers for lithium, lead-acid, and various electric-mobility applications. The supplier reports four production lines, 6–10 quality-control staff, a 97.24 m² manufacturing plant, and substantial export activity. It claims customization, ODM/OEM, two-year full warranty, and free replacement services. However, no certification information or specific customer cases is provided. The materials also contain differing establishment/export-history references, so corporate history should be verified before relying on those claims.

Supplier typeThe supplier is legally described as a limited company and classified as a trading company, while its materials also identify a factory/manufacturer operation at a Guangzhou address. Its business covers battery chargers and related electrical/electronics products, indicating a trading entity with stated manufacturing capability.

After-Sales capabilityDanl explicitly states that it provides after-service and claims a two-year full warranty policy with free replacement. These are clear stated service commitments, although no service process, response-time data, or verification evidence is provided.

R&D capabilityThe supplier states that it designs and manufactures switching-mode technology battery chargers and develops smart chargers for multiple battery chemistries and electric-mobility applications. This supports product-development capability, but no patents, R&D team information, or independently validated technology evidence is provided.

Production capacityThe supplier reports a 97.24 m² manufacturing plant, four production lines, and 6–10 quality-control staff. Its listed product range covers multiple voltage levels, battery chemistries, and vehicle types, providing explicit evidence of production scope, though actual capacity and output verification are limited.

Customization capabilityDanl explicitly states that it specializes in customizing smart battery chargers and provides ODM/OEM services and charging solutions for battery and EV factories or wholesalers. This directly supports customization capability across multiple battery and mobility applications.

Product Q&A

Q:What charging modes does this charger support?

It features an automatic 3-step charging process: Pre-charge, Constant Current (CC), Constant Voltage (CV), and Floating/Absorption, ensuring optimal battery health.

Q:Can this charger be used for lithium batteries?

Yes, it supports both lead-acid (AGM/Gel/SLA) and lithium batteries (LiFePO4, Li-MnO2). Max charging voltage can be set to 42V/43.8V for lithium types.

Q:Is it safe to leave the charger connected for long periods?

For lead-acid batteries, yes, due to the maintenance (floating) mode. However, for lithium batteries without a BMS, do not leave it connected unattended for more than 24 hours.

Q:Can I charge multiple batteries in parallel?

Yes, the charger can maintain several parallel-connected batteries as one unit. Ensure the total capacity is within the model's recommendation and use high-quality wiring.

Q:What protections are included in this charger?

It includes short circuit, over-voltage, over-temperature, and reverse polarity protections, along with a 100% full load burn-in test for reliability.