Battery Chargers

Intelligent battery charger designed for safe, fast, and efficient charging in power backup and energy storage systems.

12V–120V Automatic Float Battery Charger 10A–100A Adjustable DC Charger IWR/BLB Series

Johsun IWR automatic battery charger (12–120V) delivers flexible output with 10–100A current, featuring auto charging,

Johsun Tec Battery Chargers Manufacturer

Model series: IWR‑10 / IWR‑15 / IWR‑20 / IWR‑40 / IWR‑60 / IWR‑80 / IWR‑100.
Output voltages:
- IWR‑10, IWR‑15: 12V / 24V
- IWR‑20: 12V / 24V / 36V / 48V / 60V / 72V
- IWR‑40 and above: 12V–120V wide range, covering common lead‑acid battery pack voltages.
Maximum output current (DC): 10A / 15A / 20A / 40A / 60A / 80A / 100A, allowing selection by battery capacity and charging demand.
Input power: 220–240 VAC, 50–60 Hz, with other input voltages available on request.
Operating temperature: ‑10℃ to +45℃, suitable for industrial and outdoor environments.
Protection features:
- Mains‑side protection: reverse polarity, short circuit.
- Output‑side protection: overload, short circuit, full‑charge cut‑off.
Charging mode: Automatic (AUTOMATIC) with floating current charging, helping maintain battery life and capacity.
Enclosure & cooling: Built‑in rear fan reduces heat, with overall temperature rise ≤6℃, improving long‑term reliability.

Professional Manufacturing

Automatic Voltage Converter Factory

With a production history since 2007, our facility in the Xiangyang Industrial Zone integrates advanced R&D with rigorous ISO9001:2008 standards. We ensure a 100% yield through multiple stages of technical debugging, delivering certified power solutions to over 20 countries worldwide.

Voltage Regulators

Engineered with high-sensitivity response technology to ensure a consistent, safe voltage output.

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uilt with premium copper/aluminum materials for superior heat dissipation and low energy loss.

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High-efficiency power conversion optimized for solar photovoltaic ecosystems.

Best voltage converter company

We supply a wide range of 110V-to-220V and 220V-to-110V converters.

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Certifications & Quality Standards

Combining innovative technology with stringent quality standards to meet global demands.

Download Our Battery Chargers Catalog

Access our latest product catalog to explore the full range of voltage stabilizers and power regulation solutions. The catalog includes detailed specifications, model comparisons, technical parameters, capacity selection guidance, and customization options to help you choose the right solution for your market.

Inside the catalog, you will find:

Relay Type, Servo Motor Type & Static Type Models
Input/output voltage configurations
Protection features and application scenarios
OEM / ODM customization information

Source factory

What battery types are supported?

Mainly 12V/24V lead‑acid automotive, motorcycle, and marine batteries, as well as 12–120V lead‑acid battery packs for industrial backup systems.

Does the charger stop automatically when full?

Yes. The automatic mode detects full‑charge conditions and switches to floating‑charge or cuts off output, preventing overcharging and gas emission.

What current range is available?

Rated maximum output currents from 10A to 100A, with specific models for different battery sizes (e.g., 10A–20A for small vehicles, 40A–100A for larger industrial systems).

Is it suitable for long‑term industrial use?

Yes. The fan‑cooled design, multiple protections, and wide operating‑temperature range make it suitable for industrial plants, marine applications, and backup‑power stations.

Can input voltage be customized?

Standard input is 220–240 VAC, 50–60 Hz, but other voltages (e.g., 110 VAC) can be customized on request.