ROS12-50
SERIES ROS · OPZS (FLOODED)The energy tank. 20+ years of proven service life.
The ROS12-50 is a 12 V, 50 Ah (10-hour rate) OPzS lead-acid battery from the Rekoser OPzS (Flooded) series. It measures 260 × 168 × 211 mm and weighs 20 kg, with F11 terminals. It stores 600 Wh 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 RKS12-50.
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 | 12 V |
|---|---|
| Capacity (25ºC) | 50 Ah (C10) |
| Energy | 600 Wh |
| Weight | 20 kg |
| Terminal | F11 |
| Dimensions | 260 × 168 × 211 mm |
Main Applications
Quality Standards
ROS12-50
OPZS (FLOODED)Graphics (25°C)
Constant Discharge Ratings (A) at 25ºC
| F.V / Time | 15MIN | 30MIN | 1HR | 3HR | 5HR | 10HR | 20HR |
|---|---|---|---|---|---|---|---|
| 10.80 V | 45.6A | 36.6A | 25.5A | 12.4A | 8.73A | 5A | 2.7A |
| 10.50 V | 48.1A | 38A | 26.3A | 12.8A | 9A | 5.04A | 2.72A |
| 10.20 V | 49.8A | 39A | 26.9A | 12.8A | 9.06A | 5.07A | 2.74A |
| 9.90 V | 51.7A | 40.2A | 27.6A | 13A | 9.19A | 5.08A | 2.74A |
| 9.60 V | 53A | 41A | 28A | 13.1A | 9.24A | 5.09A | 2.75A |
Constant Discharge Ratings (W) at 25ºC
| F.V / Time | 15MIN | 30MIN | 1HR | 3HR | 5HR | 10HR | 20HR |
|---|---|---|---|---|---|---|---|
| 10.80 V | 83.4W | 68.5W | 48.5W | 24.2W | 17.2W | 10W | 5.4W |
| 10.50 V | 88.1W | 71.1W | 50.1W | 25W | 17.7W | 10W | 5.44W |
| 10.20 V | 91.2W | 72.8W | 51.1W | 25.2W | 17.9W | 10.1W | 5.47W |
| 9.90 V | 94.7W | 75.1W | 52.4W | 25.5W | 18.1W | 10.1W | 5.49W |
| 9.60 V | 97W | 76.7W | 53.2W | 25.7W | 18.2W | 10.1W | 5.5W |
ROS12-50
OPZS (FLOODED)Specifications
| Nominal Voltage | 12 V |
|---|---|
| Capacity (25ºC) | 50 Ah (C10) |
| Energy | 600 Wh |
| Cell number | 6 |
| Charge Voltage (25°C) | Cycle use: 14.1-14.4V (-5mV / o C/ cell) Float use: 13.2-13.5V (-3mV / o C/ cell) |
| Max. Charge Current | 240 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 |
ROS12-50
OPZS (FLOODED)Quick Installation Guide
To ensure optimal performance and maximize the lifespan of your REKOSER ROS12-50 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: 260 mm
- Width: 168 mm
- Height: 211 mm
- Total Height: 826 mm
- Weight: 20 kg
2. Terminal Configuration (F11)
- Terminals: Ensure your system's connectors match the F11 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: 14.1-14.4V (-5mV / o C/ cell)
- Float use: 13.2-13.5V (-3mV / o C/ 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
ROS12-100 (12 V · 100 Ah) · See all ROS series models