UPS / Microgrid Systems TGH33 Series 150–250kW PV-ESS All-in-One Microgrid UPS System
Energy storage product for B2B applications
View Details →
Advanced energy storage product engineered for reliable power applications, scalable supply, and global B2B project requirements.
Designed for dependable cyclic and standby applications, this sealed valve-regulated gel battery features a maintenance-free structure, high-quality AGM separator, durable ABS housing, low self-discharge rate of ≤3%, and strong deep-discharge protection. It delivers stable charging performance and reliable operation across ambient temperatures from 0°C to 40°C.

| PARAMETER | UD250AH/12V |
|---|---|
| BASIC SPECIFICATIONS | |
| Model | UD250AH/12V |
| Product Code | UD250AH/12V |
| Battery Type | Sealed Valve-Regulated Lead-Acid Battery (VRLA / AGM) |
| Nominal Voltage | 12V |
| Nominal Capacity (10HR) | 250Ah |
| Separator | High-quality AGM Separator |
| Maintenance | Sealed Valve-Regulated / Maintenance-free |
| Container Material | ABS |
| Terminal | T11 |
| CAPACITY PERFORMANCE | |
| 20HR Capacity | 260.0Ah / 13.0A 20hr, 1.80V/cell, 25°C (77°F) |
| 10HR Capacity | 250.0Ah / 25.0A 10hr, 1.80V/cell, 25°C (77°F) |
| 5HR Capacity | 215.4Ah / 43.0A 5hr, 1.75V/cell, 25°C (77°F) |
| 3HR Capacity | 195.2Ah / 65.05A 3hr, 1.75V/cell, 25°C (77°F) |
| 1HR Capacity | 152.5Ah / 152.5A 1hr, 1.60V/cell, 25°C (77°F) |
| DISCHARGE PERFORMANCE | |
| Maximum Discharge Current | 2500A (5 Seconds) |
| Internal Resistance | Approx. 2.7mΩ |
| CHARGING PARAMETERS | |
| Cycle Use – Initial Charging Current | Less Than 60.0A |
| Cycle Use – Charging Voltage | 14.4V–15.0V at 25°C (77°F) |
| Cycle Use – Temperature Coefficient | -30mV/°C |
| Standby Use – Initial Charging Current | No Limit |
| Standby Use – Charging Voltage | 13.5V–13.8V at 25°C (77°F) |
| Standby Use – Temperature Coefficient | -20mV/°C |
| TEMPERATURE CONDITIONS | |
| Discharge Temperature | -15°C to +50°C (5°F to 122°F) |
| Charge Temperature | 0°C to +40°C (32°F to 104°F) |
| Storage Temperature | -15°C to +40°C (5°F to 104°F) |
| Nominal Operating Temperature | 25 ±3°C (77 ±5°F) |
| CAPACITY VS. TEMPERATURE | |
| Capacity at 40°C (104°F) | 103% |
| Capacity at 25°C (77°F) | 100% |
| Capacity at 0°C (32°F) | 86% |
| STORAGE & SELF-DISCHARGE | |
| Low Self-discharge Rate | ≤3% |
| Storage / Self-discharge | Battery may be stored for up to 6 months at 25°C (77°F) before recharging. At higher temperatures, the recharge interval should be shorter. |
| MECHANICAL SPECIFICATIONS | |
| Length | 522 ±3mm (20.55in) |
| Width | 268 ±2mm (10.55in) |
| Container Height | 220 ±2mm (8.66in) |
| Total Height (with Terminal) | 225 ±2mm (8.86in) |
| Approx. Weight | Approx. 63.8kg (140.65lbs) |
| PRODUCT FEATURES | |
| Sealed Construction | Sealed Valve-Regulated, Maintenance-free |
| Separator | High-quality AGM Separator |
| Container Features | ABS Plastic Container with Good Impact and Vibration Resistance |
| Charge & Discharge Performance | Good Charge Receptivity and Deep-discharge Protection |
| Cycle Performance | Good Cyclic and Stationary Performance |
| Recommended Ambient Temperature | 0°C to 40°C |
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.
Loading latest articles...
Please publish WordPress blog posts or check whether the REST API is enabled.