Home Energy Storage
Wall-mounted, rack-mounted, stackable and all-in-one LiFePO4 systems for solar and backup applications.
Dongguan LiFePO4 battery manufacturing
Battery Systems Built Around the Application
Delong develops residential and commercial energy storage, motive-power packs and deep-cycle LiFePO4 modules for solar installers, EPCs, vehicle OEMs and distributors.
Supplier profile
From low-voltage modules to complete storage systems
Delong’s useful buyer proposition is system integration: cell configuration, enclosure, BMS, communications and application-specific output. Buyers should qualify the exact model rather than transferring claims across the whole catalog.
Established 2012Manufacturer/public profile
Dongguan productionOn-site reviewed operation
LiFePO4 focusPublished product portfolio
OEM / ODMVoltage, capacity, BMS, enclosure
System families01 · RESIDENTIAL 02 · COMMERCIAL 03 · MOTIVE POWER 04 · DEEP CYCLE
Select by duty cycle and integration scope
C&I Energy Storage
Outdoor cabinets and larger systems for peak management, microgrids, EV charging support and backup.
Golf Cart & Low-Speed EV
High-discharge packs for golf carts, LSEVs, e-tricycles, mobility and other motive applications.
12–48V Battery Modules
Drop-in or system-integrated modules for RV, marine, trolling motor, telecom and solar use.
Engineering brief
Energy capacity is only the first number
| Input | What to provide | Why it matters |
|---|---|---|
| Load | Continuous, peak power and surge duration | Cell/BMS current and thermal design |
| Energy | Daily kWh, autonomy and usable DoD | Pack capacity and degradation margin |
| System | DC voltage, inverter/charger and protocol | Architecture and CAN/RS485 compatibility |
| Environment | Temperature, IP, corrosion and altitude | Enclosure, heating/cooling and derating |
| Safety | Fire strategy, installation and emergency plan | System integration and local approval |
| Market | Country, end use and required standards | Model-level certification plan |
Safety & compliance
Certify the complete configuration—not a generic battery
Delong publicly references CE, UN38.3, IEC and MSDS documentation. Buyers must match each document to the legal manufacturer, model, cell, BMS, enclosure, charger/inverter and destination-market requirement.
- Cell manufacturer, grade, traceability and incoming test
- BMS protections, firmware, communications and balancing
- Pack insulation, withstand voltage and thermal controls
- UN38.3 test summary, MSDS and shipping configuration
- System fire detection/suppression and installation manuals
Commercial risks to close early
Warranty throughput and conditions, remote diagnostics, firmware ownership, inverter compatibility, spare parts, field service, failed-pack return, dangerous-goods shipping and local installer responsibilities.
A public customer forum records a state-of-charge coordination issue in a multi-pack installation. It is not proof of a systemic defect, but it reinforces the need to validate master/slave BMS logic and inverter communications before deployment.
Buyer FAQ
Before ordering a system
Can Delong customize battery voltage and capacity?
The company publicly offers OEM/ODM covering voltage, capacity, BMS and form factor. Engineering feasibility and certification impacts must be reviewed for each configuration.
Has the Dongguan operation been visited?
Yes. Its presence and battery manufacturing activity in the industrial park have been reviewed on site. Cell source, model performance and certifications still require document review.
Which inverter brands are compatible?
Public materials reference compatibility with several popular inverter brands. Confirm the exact inverter model, firmware, CAN/RS485 protocol and parallel operating logic in writing.
Which certificates are needed?
Requirements depend on country, application and system size. UN38.3 supports transport but does not replace product, electrical-installation or grid-connection approvals.
Project enquiry
Send a load profile—not just “10 kWh”
The form opens a structured email to Delong’s published sales address.
Email: info@delongtop.com
Telephone: +86 755 2101 2989
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