GFM-500A (ML500-2) 2V 500Ah Lead Acid Battery – VRLA AGM Battery for Telecom & UPS
Features
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High Capacity & Long Life: 2V 500Ah large capacity, designed for long service life (up to 12+ years in float use at 25°C).
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AGM Technology: Maintenance-free, sealed lead acid battery using advanced Absorbent Glass Mat (AGM) technology.
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High Reliability: Stable performance under deep cycle and standby use. Low self-discharge rate.
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Strong Housing: Durable ABS container with flame-retardant optional.
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Flexible Installation: Can be installed vertically or horizontally without acid leakage.
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Comprehensive Certifications: CE, IEC60896, ISO9001, ISO14001, UL approved.
Application
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Telecommunication base stations
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UPS systems (Uninterruptible Power Supply)
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Solar and renewable energy storage
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Power plants & substations
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Railway signaling systems
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Emergency lighting systems
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Security and alarm systems
Specification
Battery Model ML100-2 2V100AH | ||||
Designed Floating Life Up to? 15 Years | ||||
20HR(5.120 A,1.80V) Capacity (25℃) 102.40AH |
10HR(10.000A,1.80V) | 5HR(16.660A,1.80V) | 1HR(52.660A,1.80V) | |
100.00 AH | 83.30 AH | 52.66AH | ||
Dimensions | Length | Width | Height | Total Height |
? | 170 mm | 72 mm | 205 mm | 228 mm |
Approx. Weight 5.90KG±3% | ||||
Internal Resistance Full charged at 25℃:≤2.00mQ | ||||
Self Discharge 2% of capacity declined per month at (25℃) | ||||
Capacity Affected 40℃ by Temp.(20HR) 102% |
25℃ | 0℃ | -15℃ | |
100% | 85% | 65% | ||
Cycle use Charge Voltage(25℃) 2.30-2.40V(-3.3mV/℃),max.Current:25.00A |
Float use | |||
2.20-2.25V(-3.3mV/℃) |
Production? Advantages
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Long Design Life
Engineered for 12+ years of float service at 25°C, ensuring dependable long-term backup power. -
High Energy Density
Compact design with high capacity output—ideal for space-limited installations. -
Maintenance-Free Operation
Sealed AGM technology eliminates the need for water refilling or regular maintenance. -
Excellent Deep Discharge Recovery
Performs reliably even after repeated deep discharges—perfect for solar and backup use. -
Wide Operating Temperature Range
Stable performance from -15°C to +50°C, suitable for extreme environments. -
Low Self-Discharge
Less than 3% per month at 25°C, supporting longer storage without degradation. -
Strong Safety & Durability
ABS housing with optional flame-retardant (UL94-V0) offers high mechanical strength and safety. -
Flexible Installation
Can be used in both horizontal and vertical orientations without leakage risk. -
Certified Quality
Complies with CE, UL, ISO9001, ISO14001, and IEC60896 standards for international quality assurance.
Product Display





- telecom battery
- ups battery