ROS2-500
SERIES ROS · OPZS (FLOODED)The energy tank. 20+ years of proven service life.
The ROS2-500 is a 2 V, 500 Ah (10-hour rate) OPzS lead-acid battery from the Rekoser OPzS (Flooded) series. It measures 166 × 206 × 470 mm and weighs 26 kg, with F10 terminals. It stores 1 kWh and delivers up to 2500 A. The energy tank. 20+ years of proven service life. Typical applications: Solar/Wind Energy Systems, Electrical Substations, Telecommunications and Base Stations and Railway Signaling and Infrastructure.
Formerly RKS2-500.
Main Advantages
- Technology: Vented tubular plates with liquid electrolyte
- Maintenance: Periodic topping up with distilled water required
- Durability: Over 20 years proven design life at 20ºC
- Control: Transparent container for easy electrolyte level monitoring
| Nominal Voltage | 2 V |
|---|---|
| Capacity (25ºC) | 500 Ah (C10) |
| Energy | 1000 Wh |
| Weight | 26 kg |
| Terminal | F10 |
| Dimensions | 166 × 206 × 470 mm |
Main Applications
Quality Standards
ROS2-500
OPZS (FLOODED)Graphics (25°C)
Constant Discharge Ratings (A) at 25ºC
| F.V / Time | 30MIN | 1HR | 3HR | 5HR | 10HR | 20HR |
|---|---|---|---|---|---|---|
| 1.85 V | 346A | 240A | 116A | 82.6A | 47.6A | 25.8A |
| 1.80 V | 365A | 256A | 124A | 87.6A | 50A | 27A |
| 1.75 V | 380A | 262A | 128A | 90A | 50.4A | 27.2A |
| 1.70 V | 391A | 271A | 130A | 91A | 50.6A | 27.4A |
Constant Discharge Ratings (W) at 25ºC
| F.V / Time | 30MIN | 1HR | 3HR | 5HR | 10HR | 20HR |
|---|---|---|---|---|---|---|
| 1.85 V | 638W | 450W | 226W | 160W | 92.6W | 50W |
| 1.80 V | 686W | 485W | 241W | 172W | 99.4W | 54W |
| 1.75 V | 710W | 500W | 250W | 177W | 99.8W | 54.6W |
| 1.70 V | 730W | 510W | 253W | 180W | 101W | 54.7W |
ROS2-500
OPZS (FLOODED)Specifications
| Nominal Voltage | 2 V |
|---|---|
| Capacity (25ºC) | 500 Ah (C10) |
| Energy | 1000 Wh |
| Cell number | 1 |
| Charge Voltage (25°C) | Cycle use: 2.35-2.40V (-5mV/ºC/cell) Float use: 2.21-2.25V (-3mV/ºC/cell) |
| Max. Charge Current | 100 A |
| Max. Discharge Current | 2500 A |
| Internal Resistance | 0.35 mΩ |
| Self Discharge | 3 % of capacity per month at 20 °C |
| Capacity Affected by Temperature | 40 °C: 102 %, 25 °C: 100 %, 0 °C: 85 %, -15 °C: 65 % |
Construction
| Component | Material |
|---|---|
| Container | SAN |
| Cover | ABS (Flame Retardant Optional) |
| Electrolyte | Sulphuric acid |
| Negative | Lead |
| Positive | Lead dioxide |
| Safety Valve | Rubber |
| Sealant | Epoxy Resin |
| Separator | Fibre Glass |
| Terminal | Copper |
ROS2-500
OPZS (FLOODED)Quick Installation Guide
To ensure optimal performance and maximize the lifespan of your REKOSER ROS2-500 battery, follow these assembly and connection guidelines.
1. Space and Dimension Verification
Before proceeding, ensure the receptacle or cabinet of your equipment complies with the unit's physical measurements:
- Length: 166 mm
- Width: 206 mm
- Height: 470 mm
- Total Height: 525 mm
- Weight: 26 kg
2. Terminal Configuration (F10)
- Terminals: Ensure your system's connectors match the F10 type to prevent electrical arcing.
- Polarity: Check the positive and negative markings on the battery before connecting, to prevent short circuits.
3. Charge Parameters
- Cycle use: 2.35-2.40V (-5mV/ºC/cell)
- Float use: 2.21-2.25V (-3mV/ºC/cell)
4. Safety and Storage
Maintenance: Check the electrolyte level and top up only with distilled or demineralised water.
Position: Always upright.
Ventilation: Install in a ventilated room: hydrogen is released during charging.
Storage: Store charged, in a cool and dry place, and recharge periodically.
Nearby models
ROS2-420 (2 V · 420 Ah) · ROS2-600 (2 V · 600 Ah) · See all ROS series models