The VPRO 9Ah 12V battery is made in VRLA/AGM (Absorbent Glass Mat) technology, so it can work in any position - under normal operating conditions it does not emit gases. Thanks to its tightness, the battery is not harmful to the environment and is designed, among others, for use in emergency power supply systems (UPS, automation system), solar installations and to work with voltage converters. The battery works best in buffer charging systems, but the battery can also be used in applications where cyclic operation is required. The designed battery life is 8-10 years for operation at temperatures of about 20-25 degrees Celsius. The accumulator has about 650 cycles of operation.
The AGM VRLA type batteries are the most popular back-up power supply design. The VRLA battery is characterized by an internal construction based on separators made of glass fibre, where the electrolyte is concentrated. The separators are placed between the lead plates inside the battery's energy storage. An additional feature of the batteries used in the standard is having an automatic sealing system (pressure valves - Valve Regulated). When too high a pressure is detected inside the battery, the valves open, causing safe discharge of the resulting gas outside the casing, preventing damage. The battery housing is made of ABS material and the cells are made of copper.
| Capacity (25 °C) | 9 Ah |
| Voltage | 12V |
| Maximum charging current | 2,7 A |
| Total height | 100 mm |
| Height | 94 mm |
| Width | 65 mm |
| Length | 151 mm |
| Weight | 2,65 Kg +- 4 % |
| Internal resistance (25 °C): | 19 mΩ at full charge |
| Own unloading | 2-3 % per month at 25 °C |
| Capacity (40 °C) | 102% |
| Capacity (25 °C) | 100 % |
| Capacity (0 °C) | 65 % |
| Capacity (-15 °C) | 65 % |
| Buffer loading | 13.5 - 13.8 V (-18 mV/C) |
| Cyclic charging | 14.5 - 15.0 V (-30 mV/C) |
The designed battery life is 8-10 years at the manufacturer's intended use under optimal conditions.
