RGP12-28
SERIES RGP · GENERAL PURPOSE (AGM)Versatility and reliability for volume applications.
The RGP12-28 is a 12 V, 28 Ah (20-hour rate) AGM lead-acid battery from the Rekoser General Purpose (AGM) series. It measures 165 × 125 × 175 mm and weighs 8.6 kg. It stores 336 Wh and delivers up to 330 A. Versatility and reliability for volume applications. Typical applications: UPS and Data Centers, Security and Alarm Systems and Emergency Lighting.
Formerly RKE12-28.
Main Advantages
- AGM Technology: Fully sealed, maintenance-free, and leak-proof.
- High Energy Density: Optimized for critical and rapid discharges.
- Low Self-Discharge: Pb-Ca alloy allows for long storage periods.
- Advanced Safety: Safety valves and reinforced ABS container.
| Nominal Voltage | 12 V |
|---|---|
| Capacity (25ºC) | 28 Ah (C20) |
| Energy | 336 Wh |
| Weight | 8.6 kg |
| Dimensions | 165 × 125 × 175 mm |
Main Applications
Quality Standards
RGP12-28
GENERAL PURPOSE (AGM)Graphics (25°C)
Constant Discharge Ratings (A) at 25ºC
| F.V / Time | 5MIN | 10MIN | 15MIN | 30MIN | 1HR | 3HR | 5HR | 10HR | 20HR |
|---|---|---|---|---|---|---|---|---|---|
| 11.10 V | 69.9A | 54.7A | 46.4A | 28.5A | 17A | 7.36A | 4.74A | 2.61A | 1.33A |
| 10.80 V | 79A | 58.1A | 47.6A | 29.1A | 17.2A | 7.45A | 4.79A | 2.65A | 1.37A |
| 10.50 V | 88.2A | 61.5A | 48.7A | 29.6A | 17.6A | 7.57A | 4.84A | 2.68A | 1.4A |
| 10.20 V | 96.7A | 64.3A | 50A | 30.3A | 17.9A | 7.65A | 4.91A | 2.71A | 1.43A |
| 10.02 V | 104A | 67.2A | 51.3A | 30.9A | 18.2A | 7.71A | 4.98A | 2.74A | 1.46A |
| 9.60 V | 112A | 69.6A | 53.1A | 31.6A | 18.4A | 7.79A | 5.03A | 2.78A | 1.48A |
Constant Discharge Ratings (W) at 25ºC
| F.V / Time | 5MIN | 10MIN | 15MIN | 30MIN | 1HR | 3HR | 5HR | 10HR | 20HR |
|---|---|---|---|---|---|---|---|---|---|
| 11.10 V | 132W | 104W | 88.6W | 54.9W | 33W | 14.3W | 9.39W | 5.22W | 2.68W |
| 10.80 V | 146W | 109W | 90W | 55.4W | 33.1W | 14.4W | 9.4W | 5.26W | 2.74W |
| 10.50 V | 161W | 114W | 91.3W | 56W | 33.5W | 14.5W | 9.43W | 5.28W | 2.78W |
| 10.20 V | 175W | 118W | 92.7W | 56.8W | 33.8W | 14.6W | 9.49W | 5.3W | 2.82W |
| 10.02 V | 186W | 122W | 94.2W | 57.3W | 34.1W | 14.7W | 9.53W | 5.32W | 2.85W |
| 9.60 V | 198W | 125W | 96.9W | 58.4W | 34.3W | 14.8W | 9.58W | 5.36W | 2.88W |
RGP12-28
GENERAL PURPOSE (AGM)Specifications
| Nominal Voltage | 12 V |
|---|---|
| Capacity (25ºC) | 28 Ah (C20) |
| Energy | 336 Wh |
| Cell number | 6 |
| Charge Voltage (25°C) | Cycle use: 14.6-14.8V (-30mV/C), max. Current 2.1A Float use: 13.6-13.8V (-20mV/C) |
| Max. Charge Current | 8.4 A |
| Max. Discharge Current | 330 A |
| Internal Resistance | 10 mΩ |
| Self Discharge | 3 % of capacity per month at 25 °C |
| Capacity Affected by Temperature | 40 °C: 102 %, 25 °C: 100 %, 0 °C: 85 %, -15 °C: 65 % |
Construction
| Component | Material |
|---|---|
| Container | ABS (Flame Retardant Optional) |
| Cover | ABS (Flame Retardant Optional) |
| Electrolyte | Sulphuric acid |
| Negative | Lead |
| Positive | Lead dioxide |
| Safety Valve | Rubber |
| Sealant | Epoxy Resin |
| Separator | Fibre Glass |
| Terminal | Copper |
RGP12-28
GENERAL PURPOSE (AGM)Quick Installation Guide
To ensure optimal performance and maximize the lifespan of your REKOSER RGP12-28 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: 165 mm
- Width: 125 mm
- Height: 175 mm
- Total Height: 175 mm
- Weight: 8.6 kg
2. Terminals and Polarity
- Polarity: Check the positive and negative markings on the battery before connecting, to prevent short circuits.
3. Charge Parameters
- Cycle use: 14.6-14.8V (-30mV/C), max. Current 2.1A
- Float use: 13.6-13.8V (-20mV/C)
4. Safety and Storage
Maintenance: Sealed AGM technology, maintenance-free and leak-proof.
Position: Can be installed in any orientation, except inverted.
Storage: Store charged, in a cool and dry place, and recharge periodically.
Nearby models
RGP12-26 (12 V · 26 Ah) · See all RGP series models