12V2.9ah VRLA battery(SR2.9-12)
Valve regulated lead acid series UPS batteries are designed with AGM (Absorbent Glass Mat) technology, high performance plates and electrolyte to gain extra power output for common power backup system applications.
Battery Structure
1. Container/Cover: Made of UL94HB and LU 94V-0 ABS Plastic
2. Negative Plates: Use the special PbCa alloy grids, optimize the recombination efficiency and less gassing.
3. Separator: Import high quality AGM separator.
4. Positive Plates: PbCa grids minimize corrosion and prolong life.
5. Terminal post: Cooper material with maximum conductivity, enhance the high current rapidly.
6. Vent Valve: Allows the release of excess gas automatically for safety.
Application
Control systems, Electric toys, Emergency lamp, Power tools, Medical treatment equipment, Alarm system, Emergency light system, Standby power supply, UPS and computer standby power supply, Power system, Telecommunication system, Firefighting equipment standby power supply, Railway station, Ship Equipment, Emergency Equipment, Telephone switching system.
Characteristics
· Excellent safety performance.
· Good discharging performance.
· Good stock-proof performance.
· Good impact-proof performance.
· Good resistance to over discharge.
· Good resistance to overcharge.
· Good resistance to high current.
| Capacity 77°F(25 C ) |
20 hours rate(0.145A 10.5V) |
2.9Ah |
| 10 hours rate(0.26A 10.5V) |
2.6Ah |
| 5 hours rate(0.51A 10.5V) |
2.55Ah |
| 1 hour rate(2.1A 9.6V) |
2.1Ah |
| Internal Resistance |
Full charged battery 77°F(25 C ):40mΩ |
|
| Capacity affected by Temperature (20 hour rate) |
104°F(40 C ) |
102% |
| 77°F(25 C ) |
100% |
| 32°F(10 C ) |
85% |
| 5°F(-15 C ) |
65% |
| Self-Discharge 68°F(20 C ) |
Capacity after 3 month storage |
90% |
| Capacity after 6 month storage |
80% |
| Capacity after 12 month storage |
60% |
| Max discharge current77°F(25 C ):43.5A(5S) |
| Charge (Constant Voltage) |
Float:13.6 to 13.8V/77°F/(25 C ) |
| Cycle:14.5 to 14.9V/77°F/(25 C ) |
| Max Current:0.73A |
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