VRLA AGM Battery 12V7Ah
General Features
- Designed floating charging service life: 12 years (25ºC)
- Sealed and maintenance free operation
- Safety valve installation for explosion proof
- Low self-discharge characteristic
- Wide operating temperature range from 0ºC~40ºC
- Lead Aluminum calcium Tin alloy high energy, prevent corrosion
APPLICATION
- DC power supply
- UP S /E P S power supply
- Electrical devices & instruments
- Security and fire alarm systems
- Telecom stations and power stations
- Medical equipments
- Emergency lighting systems
Physical Specifications
| Nominal Voltage | Nominal Capacity (10HR ) |
Dimension | Weight ±3% | Internal Resistance (In full charge status) |
Standard Terminals |
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| L | W | H | TH | |||||
| 12V | 50AH | 151±2mm | 65±2mm | 95±2mm | 100±2mm | Approx2.15kg (4.73lbs) |
≈22 mΩ | F01/F02 (standard) |
Dimensions
Constant-Voltage Charge
| Rated Capacity | |
| 20 hour rate (2.5A) | 53.0AH |
| 10 hour rate (5.0A) | 50.0AH |
| 5 hour rate (8.5A) | 42.5AH |
| 3 hour rate (12.5A) | 38.0AH |
| 1 hour rate (27.5A) | 28.0AH |
| Capacity affected by Temperature | |
| 40ºC(104ºF ) | 103% |
| 25ºC(77ºF ) | 100% |
| 0ºC(32ºF ) | 86% |
| Cycle Application |
| 1. Limit initial current less than 12.5A. |
| 2. Charge until battery voltage (under charge) reaches 14.1V to 14.4V at 25ºC(77ºF ) |
| 3. Hold at 14.1V to 14.4V until current drop to under 0.042A for at least 3 hours |
| 4. Temperature compensation coefficient of charging voltage is -30mV/ºC |
| Standby Service |
| 1. Hold battery across constant voltage source of 13.6to 13.8 volts with current limit1.75A continuously .When held at this voltage , the battery will seek its own current level and maintain itself in a fully charge status. |
| 2. Temperature compensation coefficient of charging voltage is -18mV/ºC. |
NOTE : The battery should be charged within 6 months of storage, Otherwise, permanent loss of capacity might occur as a result of sulfation
Battery Discharge Table
| End Voltage (V) |
Minute (M) | Hour (H) | |||||||||||
| 5 | 10 | 15 | 30 | 45 | 1 | 1.5 | 2 | 3 | 5 | 8 | 10 | 20 | |
| Constant Current Discharge Data Sheet (Amperes at 25ºC) | |||||||||||||
| 10.20 | 26.3 | 17.1 | 13.4 | 6.84 | 4.96 | 4.24 | 3.38 | 2.52 | 1.90 | 1.22 | 0.820 | 0.672 | 0.360 |
| 10.50 | 26.1 | 16.9 | 13.3 | 6.78 | 4.91 | 4.21 | 3.32 | 2.43 | 1.84 | 1.19 | 0.810 | 0.666 | 0.356 |
| 10.80 | 25.8 | 16.7 | 13.1 | 6.71 | 4.86 | 4.18 | 3.26 | 2.33 | 1.78 | 1.17 | 0.800 | 0.659 | 0.351 |
| Constant Power Discharge Data Sheet (Watt at 25ºC) | |||||||||||||
| 10.20 | 282 | 203.4 | 164.7 | 93.00 | 67.80 | 51.58 | 39.56 | 29.76 | 21.24 | 14.00 | 9.86 | 7.98 | 4.30 |
| 10.50 | 270 | 196.7 | 159.8 | 91.08 | 66.24 | 50.76 | 38.98 | 29.34 | 20.76 | 13.84 | 9.78 | 7.86 | 4.24 |
| 10.80 | 256 | 189.4 | 154.6 | 88.44 | 64.56 | 49.92 | 38.40 | 28.92 | 20.40 | 13.68 | 9.68 | 7.73 | 4.18 |
Constant-Voltage Charge
