UPS / Microgrid Systems TGH33 Series 150–250kW PV-ESS All-in-One Microgrid UPS System
Energy storage product for B2B applications
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Advanced energy storage product engineered for reliable power applications, scalable supply, and global B2B project requirements.
The removable 48V 20Ah downtube battery provides a practical power source for daily electric-bike commuting, with a locking enclosure that supports convenient installation and removal.

With up to 30A continuous discharge and a 40A BMS, the battery can support electric cargo and delivery bikes that need dependable power for frequent urban routes.

The slim downtube format is suitable for compatible e-bike conversion projects, combining 18650 NCM cells, a removable locking structure, and customizable battery configurations.

The 48V 20Ah platform suits trekking and recreational e-bikes that require useful riding capacity, straightforward 3A charging, and convenient off-bike battery removal.

Motor compatibility up to 1500W and up to 30A continuous discharge make the battery suitable for higher-power e-bike configurations when matched with compatible controllers and motors.

| BASIC SPECIFICATIONS | |
| Product Type | Downtube E-Bike Battery |
| Battery Type | Lithium-Ion Battery |
| Battery Chemistry | NCM |
| Battery Cell | 18650 |
| Battery Style | Downtube |
| ELECTRICAL SPECIFICATIONS | |
| Nominal Voltage | 48V |
| Nominal Capacity | 20Ah |
| Charge Voltage | 54.6V |
| Continuous Charge Current | ≤3A |
| Continuous Discharge Current | ≤30A |
| Discharge Cut-Off Voltage | 36.4V |
| BMS & CHARGING | |
| BMS Rating | 40A |
| Charger | 3A |
| MOTOR COMPATIBILITY | |
| Compatible Motor Power | Up to 1500W |
| APPLICATION & CUSTOMIZATION | |
| Application | Electric Bike / E-Bike Conversion |
| Customization | Available According to Customer Requirements |
Energy storage product for B2B applications
View Details →
Energy storage product for B2B applications
View Details →
Energy storage product for B2B applications
View Details →Founded in 2011 in Dongguan, Guangdong, VoltCrave Technology Energy is a green energy enterprise specializing in R&D, manufacturing and integrated energy storage solutions for residential, commercial and industrial applications worldwide.
Empower every home, business and journey with clean, safe and reliable energy.
Become a global leader in energy storage innovation and sustainability.
Customer Success, Integrity, Passion, Teamwork and continuous self-critique.
Strong production capacity, R&D depth, global certifications and scalable supply chain.
VoltCrave provides a complete product portfolio covering battery cells, assembled batteries, portable power stations, solar energy systems, all-in-one inverters, residential energy storage and commercial BESS solutions.
Automatic Production Lines
Units Monthly Capacity
R&D Team Members
Patents Including 420 Inventions
Strategic Production Bases
Dongguan · Huizhou · Zhejiang manufacturing network across the Greater Bay Area and Yangtze River Delta.
VoltCrave supports overseas buyers with major certification documents for product compliance, lithium battery transportation, quality management, and electrical safety verification.
Certification Documents
Supports hazardous substance restriction and environmental compliance.
Supports quality management and production process control.
Supports electrical material safety and product reliability review.
Supports lithium battery export logistics and shipment safety.
Supports portable power station safety and compliance review.
VoltCrave provides RoHS, ISO 9001, electrical product safety, lithium battery transportation safety, and UL2743 documentation support for overseas procurement and project review.
Read the latest updates on battery cells, portable power stations, solar energy systems, residential storage, commercial ESS, manufacturing capability, and global energy storage applications.
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