ROS2-2000
SERIES ROS · OPZS (FLOODED)The energy tank. 20+ years of proven service life.
The ROS2-2000 is a 2 V, 2000 Ah (10-hour rate) OPzS lead-acid battery from the Rekoser OPzS (Flooded) series. It measures 399 × 210 × 771 mm and weighs 108 kg, with M8 terminals. It stores 4 kWh and delivers up to 3000 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 RKS2-2000.
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) | 2000 Ah (C10) |
| Energy | 4000 Wh |
| Weight | 108 kg |
| Terminal | M8 |
| Dimensions | 399 × 210 × 771 mm |
Main Applications
Quality Standards
ROS2-2000
OPZS (FLOODED)Graphics (25°C)
Constant Discharge Ratings (A) at 25ºC
| F.V / Time | 5MIN | 10MIN | 15MIN | 30MIN | 1HR | 3HR | 5HR | 10HR | 20HR | 100HR |
|---|---|---|---|---|---|---|---|---|---|---|
| 1.90 V | 678A | 617A | 561A | 549A | 498A | 378A | 278A | 182A | 100A | 25.4A |
| 1.85 V | 733A | 702A | 690A | 687A | 680A | 418A | 326A | 190A | 105A | 27A |
| 1.80 V | 1170A | 1122A | 1098A | 945A | 874A | 512A | 346A | 200A | 110A | 28A |
| 1.75 V | 1404A | 1346A | 1306A | 1081A | 974A | 530A | 356A | 206A | 116A | 28.6A |
Constant Discharge Ratings (W) at 25ºC
| F.V / Time | 5MIN | 10MIN | 15MIN | 30MIN | 1HR | 3HR | 5HR | 10HR | 20HR | 100HR |
|---|---|---|---|---|---|---|---|---|---|---|
| 1.90 V | 1316W | 1197W | 1074W | 1039W | 1150W | 822W | 596W | 376W | 202W | 55W |
| 1.85 V | 1421W | 1363W | 1324W | 1290W | 1308W | 860W | 662W | 408W | 220W | 57.3W |
| 1.80 V | 2270W | 2178W | 1867W | 1727W | 1714W | 1094W | 756W | 440W | 228W | 58.8W |
| 1.75 V | 2723W | 2613W | 1914W | 1739W | 1728W | 1158W | 790W | 458W | 234W | 59.3W |
ROS2-2000
OPZS (FLOODED)Specifications
| Nominal Voltage | 2 V |
|---|---|
| Capacity (25ºC) | 2000 Ah (C10), 2200 Ah (C20) |
| Energy | 4000 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 | 400 A |
| Max. Discharge Current | 3000 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 |
ROS2-2000
OPZS (FLOODED)Quick Installation Guide
To ensure optimal performance and maximize the lifespan of your REKOSER ROS2-2000 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: 399 mm
- Width: 210 mm
- Height: 771 mm
- Total Height: 826 mm
- Weight: 108 kg
2. Terminal Configuration (M8)
- Terminals: Ensure your system's connectors match the M8 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
ROS2-1500 (2 V · 1500 Ah) · ROS2-3000 (2 V · 3000 Ah) · See all ROS series models