Why Choose Delong Energy?
13 Years of Experience
Customizing lithium-ion battery packs for global users since 2012
Strong R&D Team
11 national patents, customized battery solutions for over 100,000 companies.
Tailor-Made Solutions
Created for household, commercial, medical, security, photovoltaics, etc.
High-Quality Batteries
Grade A cells, sophisticated testing equipment, professional quality inspectors, higher efficiency and safety.
Complete Certifications
With UN38.3/MSDS/UL/CE/ROHS and other certifications, you can confidently use it.
After-Sales Worry Free
10-year utral long warranty, technicians provide after-sales service and support.
Supply Custom Battery Solution From Indoor To Outdoor
Household Energy Storage System
Custom Voltage, Capacity, Current, Energy, BMS, Inverter, Used For
• Home
• Solar Storage
• Central office
• Electronic cash registers
• Telecommunication systems
• Communication equipments
• Switching applications and more
• Microprocessor based office machine
Custom Voltage, Capacity, Current, Energy, BMS, Inverter Compatible, Used For
• Home
• Solar Storage
• Central office
• Electronic cash registers
• Telecommunication systems
• Communication equipments
• Switching applications and more
• Microprocessor based office machine
Custom Voltage, Capacity, Current, Energy, BMS, Inverter Compatible, Used For
• Home
• Solar Storage
• Central office
• Electronic cash registers
• Telecommunication systems
• Communication equipments
• Switching applications and more
• Microprocessor based office machine
Custom Voltage, Capacity, Current, Energy, BMS, Inverter Compatible, Used For
• Home
• Solar Storage
• Central office
• Electronic cash registers
• Telecommunication systems
• Communication equipments
• Switching applications and more
• Microprocessor based office machine

Industrial And Commercial Energy Storage System
Custom Voltage, Capacity, Current, Energy, BMS, Inverter, Used For:
• UPS System
• Solar storage
• Central office
• Base transceiver station
• Electronic cash registers
• Telecommunication systems
• Communication equipments
• Switching applications and more
• Microprocessor based office machine

Power Battery
Scooter, RV, Leisure, Caravan, Tricycle, Robotic, Electric Vehicle, Motorcycle Battery, Etc.

Custom Lithium Ion Battery Pack
Custom Voltage, Capacity, Current, Energy, BMS, Heated Battery, Bluetooth Battery, LCD, Case, Waterproof, Size, Logo, Etc.

Custom Ternary Lithium Battery
LED lights, smartphones, laptops, electric toy cars, handheld electric devices, etc.

Our Services For Customized Lithium Battery Packs
The following are some of the battery customization services we provide customers. If you have personalized customization needs, welcome to discuss them with us. We have a professional R&D team to provide practical custom battery pack solutions.
Part of Successful Cases
- Powerwall In Germany
Powerwall In Germany
- 10kwh 48V Stackable and Wall Mounted Battery in Italy 14-1
Stackable and Wall Mounted Battery in Italy
- Stackable battery in France 06-1
Stackable Battery in France
- Stackable battery in Germany 03
Stackable Battery in Germany
- Stackable Battery in Germany 04
Stackable Battery in Germany
- Stackable battery in Germany 09
Stackable Battery in Germany
- Stackable battery in Sweden
Stackable battery in Sweden
- Wall Mounted Battery in Czech 12
Wall Mounted Battery in Czech
- Wall Mounted Lifepo4 Battery In France 16-1
Wall Mounted Lifepo4 Battery In France
- Wall Mounted Lifepo4 Battery Sri Lanka 15-1
Wall Mounted Lifepo4 Battery Sri Lanka
Applications We Support
As a professional customized battery manufacturer, the lithium batteries we design span many industries and have strong support from many large enterprises.
These industries include Household, commercial, industrial, UPS, base transceiver station, communications system, medical devices, security, outdoor power supply, consumer electronics, solar storage, Internet of Things, microgrid, etc.
Household
RV
Marine
Trolling Motor
Golf Cart
E-Bike

After-Sale Without Worry
We offer a 10-year genuine warranty to provide after-sale service and technology support.
Resending new battery within 1st year if something is wrong with the quality of the product.
We provide purchase accessories free within the 2nd~5th year warranty.
We provide technology support free within the 6th~10th year warranty.