ROS2-420
SERIES ROS · OPZS (FLOODED)The energy tank. 20+ years of proven service life.
The ROS2-420 is a 2 V, 420 Ah (10-hour rate) OPzS lead-acid battery from the Rekoser OPzS (Flooded) series. It measures 145 × 206 × 470 mm and weighs 24.5 kg, with M8 terminals. It stores 840 Wh and delivers up to 1500 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 RKS2-420.
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) | 420 Ah (C10) |
| Energy | 840 Wh |
| Weight | 24.5 kg |
| Terminal | M8 |
| Dimensions | 145 × 206 × 470 mm |
Main Applications
Quality Standards
ROS2-420
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 | 168A | 152A | 139A | 136A | 126A | 79.4A | 58.4A | 38.2A | 21A | 5.33A |
| 1.85 V | 181A | 173A | 171A | 170A | 143A | 87.8A | 68.5A | 39.9A | 21.9A | 5.67A |
| 1.80 V | 289A | 277A | 271A | 234A | 184A | 108A | 72.7A | 42A | 23.1A | 5.88A |
| 1.75 V | 347A | 333A | 323A | 267A | 205A | 111A | 74.8A | 43.3A | 24.3A | 6.01A |
Constant Discharge Ratings (W) at 25ºC
| F.V / Time | 5MIN | 10MIN | 15MIN | 30MIN | 1HR | 3HR | 5HR | 10HR | 20HR | 100HR |
|---|---|---|---|---|---|---|---|---|---|---|
| 1.90 V | 325W | 296W | 265W | 257W | 242W | 173W | 125W | 79W | 42.3W | 11.6W |
| 1.85 V | 351W | 337W | 327W | 319W | 275W | 181W | 139W | 85.7W | 46.1W | 12W |
| 1.80 V | 561W | 538W | 461W | 427W | 360W | 230W | 159W | 92.4W | 47.9W | 12.3W |
| 1.75 V | 673W | 646W | 473W | 430W | 363W | 243W | 166W | 96.2W | 49.1W | 12.4W |
ROS2-420
OPZS (FLOODED)Specifications
| Nominal Voltage | 2 V |
|---|---|
| Capacity (25ºC) | 420 Ah (C10) |
| Energy | 840 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 | 84 A |
| Max. Discharge Current | 1500 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 |
ROS2-420
OPZS (FLOODED)Quick Installation Guide
To ensure optimal performance and maximize the lifespan of your REKOSER ROS2-420 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: 145 mm
- Width: 206 mm
- Height: 470 mm
- Total Height: 525 mm
- Weight: 24.5 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
ROS2-350 (2 V · 350 Ah) · ROS2-500 (2 V · 500 Ah) · See all ROS series models