36V 20A DC TO DC Marine Battery Charger Manufacturer | IP67 Waterproof Charger for Marine & Off-Grid Applications
A reliable onboard charging system is essential for commercial vehicles, marine equipment, and off-grid power systems. The 36V 20A DC TO DC Marine Battery Charger from TONNY is engineered to deliver stable, high-current charging for 36V battery banks while maintaining excellent durability in demanding environments.
Supported Battery Types
Type 01
36V Lead-acid Batteries
Type 02
36V AGM Batteries
Type 03
36V LiFePO4 Batteries
Electrical Specifications
| Item | Specification |
|---|---|
| Product Name | 36V 20A DC TO DC Marine Battery Charger |
| Rated Input Voltage | DC 12V–30V |
| Maximum Output Voltage | 43V–43.8V |
| Charging Current | 20A |
| Charging Stages | Intelligent 3-Stage Charging |
| Waterproof Rating | IP67 |
| Housing Material | Aluminum Alloy |
| Cooling System | Aluminum Heat Sink + High-Speed Cooling Fan |
Engineered for Harsh Working Environments
(Marine and commercial equipment often operate in conditions where moisture, vibration and dust can shorten the lifespan of ordinary chargers.)
The aluminum alloy housing provides excellent mechanical strength while acting as an efficient heat sink. Combined with epoxy resin potting, the internal electronics are protected against vibration, humidity and corrosion.
A high-speed cooling fan mounted on the bottom works together with the aluminum heat sink to maintain optimal operating temperatures during continuous charging.
With an IP67 waterproof rating, the charger continues to perform reliably even in wet marine environments, rainy outdoor installations and dusty work sites.
Other product features
Intelligent 3-stage charging (Pre-Charge, Constant Current, Constant Voltage).
Lithium battery activation for recovering over-discharged batteries.
Stable 20A charging output for faster charging efficiency.
Wide DC input range from 12V to 30V.
Industries We Serve
Marine Builders
Fleet Vehicle Integrators
Golf Cart Manufacturers
Agricultural Equipment OEMs
Electric Utility Vehicle Brands
Custom Manufacturing Services from TONNY
As an experienced manufacturer, factory, and global supplier of automotive electronic products, HANGZHOU TONNY ELECTRIC&TOOLS CO.,LTD supports customers with flexible OEM and ODM production. Our manufacturing capabilities include:
Customized color box packaging
Blister card packaging
Private label production
Logo printing
Product labeling
Export packaging for sea and air freight
OEM specification customization
Whether you are developing your own product line or expanding your distribution network, our engineering and production teams work closely with customers to ensure consistent quality and reliable delivery.
Why B2B Customers Work with TONNY
TONNY has built long-term partnerships with importers, distributors and OEM brands worldwide by focusing on dependable manufacturing and responsive technical support. Our advantages include:
Fast quotation and professional project support
Response within one working hour during business hours
Stable production capacity for bulk orders
Strict quality inspection before shipment
One-year product warranty
Preventive maintenance guidance
Remote technical assistance when required
Comprehensive pre-sales and after-sales support
Simply connect the DC input power source and the corresponding 36V battery system. No complicated programming or special setup is required.
warranty
One Year
payment
30% deposit on order and 70% T/T before shipment
Certifications
Our Factory
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